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Liu Q, Liu B, Sun T, Wang P, Sun W, Pan B. Vitellogenin and its upstream gene TOR play essential roles in the reproduction of Dermanyssus gallinae. Exp Parasitol 2024; 260:108746. [PMID: 38513972 DOI: 10.1016/j.exppara.2024.108746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
In Dermanyssus gallinae, a hematophagous mite, the initiation of vitellogenesis induced by blood feeding is essential for its reproduction. However, the precise gene structures and physiological functions of Vg in D. gallinae and its upstream gene, Target of Rapamycin (TOR), have not been fully understood. This study revealed the presence of four homologous genes within D. gallinae, named Dg-Vg1, Dg-Vg1-like, Dg-Vg2, and Dg-Vg2-like, especially, Dg-Vg2-like was firstly identified in the mites. The expression levels of all these Vg genes were significantly higher in adult females than other stages. Following blood feeding, the expression levels of these genes increased significantly, followed by a subsequent decrease, aligning with egg production. Silencing Dg-Vgs by RNA interference (RNAi) led to decreased fecundity and egg hatching rates, as well as abnormal embryonic development, suggesting a vital role for Dg-Vgs in both egg formation and embryonic development. Furthermore, the knockdown of Dg-TOR significantly reduced the expression of Dg-Vgs and negatively impacted the reproductive capabilities of PRMs, indicating that TOR influences PRM reproduction by regulating the expression of Dg-Vgs. In summary, these findings demonstrated the crucial roles of Dg-Vgs and Dg-TOR in PRM reproduction, highlighting their potential as targets for pest control.
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Affiliation(s)
- Qi Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Boxing Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Tiancong Sun
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Penglong Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Weiwei Sun
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China.
| | - Baoliang Pan
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China.
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2
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Wu-Chuang A, Hartmann D, Maitre A, Mateos-Hernández L, Frantová H, Urbanová V, Obregon D, Cabezas-Cruz A, Perner J. Variation of bacterial community assembly over developmental stages and midgut of Dermanyssus gallinae. MICROBIAL ECOLOGY 2023; 86:2400-2413. [PMID: 37249591 DOI: 10.1007/s00248-023-02244-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/17/2023] [Indexed: 05/31/2023]
Abstract
Bacterial microbiota play an important role in the fitness of arthropods, but the bacterial microflora in the parasitic mite Dermanyssus gallinae is only partially explored; there are gaps in our understanding of the microbiota localization and in our knowledge of microbial community assembly. In this work, we have visualized, quantified the abundance, and determined the diversity of bacterial occupancy, not only across developmental stages of D. gallinae, but also in the midgut of micro-dissected female D. gallinae mites. We explored community assembly and the presence of keystone taxa, as well as predicted metabolic functions in the microbiome of the mite. The diversity of the microbiota and the complexity of co-occurrence networks decreased with the progression of the life cycle. However, several bacterial taxa were present in all samples examined, indicating a core symbiotic consortium of bacteria. The relatively higher bacterial abundance in adult females, specifically in their midguts, implicates a function linked to the biology of D. gallinae mites. If such an association proves to be important, the bacterial microflora qualifies itself as an acaricidal or vaccine target against this troublesome pest.
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Affiliation(s)
- Alejandra Wu-Chuang
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
| | - David Hartmann
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, Ceske Budejovice, Czech Republic
| | - Apolline Maitre
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
- INRAE, UR 0045 Laboratoire de Recherches Sur Le Développement de L'Elevage (SELMET-LRDE), 20250, Corte, France
- EA 7310, Laboratoire de Virologie, Université de Corse, Corte, France
| | - Lourdes Mateos-Hernández
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
| | - Helena Frantová
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, Ceske Budejovice, Czech Republic
| | - Veronika Urbanová
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, Ceske Budejovice, Czech Republic
| | - Dasiel Obregon
- School of Environmental Sciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Alejandro Cabezas-Cruz
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France.
| | - Jan Perner
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, Ceske Budejovice, Czech Republic.
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3
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Liao F, Han C, Deng Q, Zhou Z, Bao T, Zhong M, Tao G, Li R, Han B, Qiao Y, Hu Y. Natural Products as Mite Control Agents in Animals: A Review. Molecules 2023; 28:6818. [PMID: 37836661 PMCID: PMC10574536 DOI: 10.3390/molecules28196818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Mites have been a persistent infectious disease affecting both humans and animals since ancient times. In veterinary clinics, the primary approach for treating and managing mite infestations has long been the use of chemical acaricides. However, the widespread use of these chemicals has resulted in significant problems, including drug resistance, drug residues, and environmental pollution, limiting their effectiveness. To address these challenges, researchers have shifted their focus towards natural products that have shown promise both in the laboratory and real-world settings against mite infestations. Natural products have a wide variety of chemical structures and biological activities, including acaricidal properties. This article offers a comprehensive review of the acaricidal capabilities and mechanisms of action of natural products like plant extracts, natural compounds, algae, and microbial metabolites against common animal mites.
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Affiliation(s)
- Fei Liao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| | - Changquan Han
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Qingsheng Deng
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Ziyao Zhou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| | - Taotao Bao
- Qiandongnan Center for Animal Disease Control and Prevention, Kaili 556000, China;
| | - Menghuai Zhong
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Guangyao Tao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Renjun Li
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Bo Han
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Yanlong Qiao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Yanchun Hu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
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Pavan AM, Da-Costa T, Schussler M, Ferla NJ, Johann L, Silva GLD. Acarofauna associated with organic matter in laying aviaries of different rearing systems in Brazil. EXPERIMENTAL & APPLIED ACAROLOGY 2023:10.1007/s10493-023-00815-1. [PMID: 37500954 DOI: 10.1007/s10493-023-00815-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/20/2023] [Indexed: 07/29/2023]
Abstract
Due to the high density of chickens housed within the same space in aviaries, a large volume of organic matter accumulates on the floor. This large supply of available resources allows the development of arthropods, including organisms that affect poultry productivity and health. This study aimed to evaluate the composition of the mite community associated with organic matter in poultry houses with different rearing systems and the verification of potential predators to be evaluated in clean management techniques, such as biological control. The study was carried out in the state of Rio Grande do Sul (Brazil) in a total of six poultry houses, two of the 'Californian' system (SIG) and four of the 'cage free' system (SIF). In total, 839,459 specimens were collected, of which 358,044 were collected from SIF and 481,415 specimens from SIG. Fifty-two species/morphospecies were found and we observed a grouping of aviaries from the same rearing model. Species of medical veterinary importance were found, such as Dermanyssus gallinae, Megninia ginglymura, Ornithonyssus sylviarum and Tyrophagus putrescentiae. The results demonstrate that the organic matter present in the aviaries harbors a high diversity of mites of medical-veterinary importance and predators, which are influenced by the rearing system.
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Affiliation(s)
- Aline Marjana Pavan
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil.
| | - Tairis Da-Costa
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil
- Laboratório de Evolução, Ecologia Química e Quimiotaxonomia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Matheus Schussler
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil
| | - Noeli Juarez Ferla
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil
- CNPq Researcher, Lajeado, Brasil
| | - Liana Johann
- Programa de Pós-Graduação em Sistemas Ambientais Sustentáveis - PPGSAS, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil
- CNPq Researcher, Lajeado, Brasil
| | - Guilherme Liberato da Silva
- Programa de Pós-Graduação em Sistemas Ambientais Sustentáveis - PPGSAS, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil
- Programa de Pós-Graduação em Ciências Médicas - PPGCM, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brasil
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5
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Ribeiro JM, Hartmann D, Bartošová-Sojková P, Debat H, Moos M, Šimek P, Fara J, Palus M, Kučera M, Hajdušek O, Sojka D, Kopáček P, Perner J. Blood-feeding adaptations and virome assessment of the poultry red mite Dermanyssus gallinae guided by RNA-seq. Commun Biol 2023; 6:517. [PMID: 37179447 PMCID: PMC10183022 DOI: 10.1038/s42003-023-04907-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
Dermanyssus gallinae is a blood-feeding mite that parasitises wild birds and farmed poultry. Its remarkably swift processing of blood, together with the capacity to blood-feed during most developmental stages, makes this mite a highly debilitating pest. To identify specific adaptations to digestion of a haemoglobin-rich diet, we constructed and compared transcriptomes from starved and blood-fed stages of the parasite and identified midgut-enriched transcripts. We noted that midgut transcripts encoding cysteine proteases were upregulated with a blood meal. Mapping the full proteolytic apparatus, we noted a reduction in the suite of cysteine proteases, missing homologues for Cathepsin B and C. We have further identified and phylogenetically analysed three distinct transcripts encoding vitellogenins that facilitate the reproductive capacity of the mites. We also fully mapped transcripts for haem biosynthesis and the ferritin-based system of iron storage and inter-tissue trafficking. Additionally, we identified transcripts encoding proteins implicated in immune signalling (Toll and IMD pathways) and activity (defensins and thioester-containing proteins), RNAi, and ion channelling (with targets for commercial acaricides such as Fluralaner, Fipronil, and Ivermectin). Viral sequences were filtered from the Illumina reads and we described, in part, the RNA-virome of D. gallinae with identification of a novel virus, Red mite quaranjavirus 1.
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Affiliation(s)
- José M Ribeiro
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - David Hartmann
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Pavla Bartošová-Sojková
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Humberto Debat
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Córdoba, Argentina
| | - Martin Moos
- Institute of Entomology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Petr Šimek
- Institute of Entomology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Jiří Fara
- International Poultry Testing Station Ústrašice, Ústrašice, Czech Republic
| | - Martin Palus
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Matěj Kučera
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Ondřej Hajdušek
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Daniel Sojka
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Petr Kopáček
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Jan Perner
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic.
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6
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Hwang ET. Management of the poultry red mite Dermanyssus gallinae with physical control methods by inorganic material and future perspectives. Poult Sci 2023; 102:102772. [PMID: 37245438 DOI: 10.1016/j.psj.2023.102772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/30/2023] Open
Abstract
Poultry red mite (PRM), the ectoparasitic mite Dermanyssus gallinae found in laying hen farms, is a significant threat to poultry production and human health worldwide. It is a suspected disease vector and attacks hosts' other than chickens, including humans, and its economic importance has increased greatly. Different strategies to control PRM have been widely tested and investigated. In principle, several synthetic pesticides have been applied to control PRM. However, recent alternative control methods to avoid the side effects of pesticides have been introduced, although many remain in the early stage of commercialization. In particular, advances in material science have made various materials more affordable as alternatives for controlling PRM through physical interactions between PRM. This review provides a summary of PRM infestation, and then includes a discussion and comparison of different conventional approaches: 1) organic substances, 2) biological approaches, and 3) physical inorganic material treatment. The advantages of inorganic materials are discussed in detail, including the classification of materials, as well as the physical mechanism-induced effect on PRM. In this review, we also consider the perspective of using several synthetic inorganic materials to suggest novel strategies for improved monitoring and better information regarding treatment interventions.
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Affiliation(s)
- Ee Taek Hwang
- Department of Food Biotechnology, Dong-A University, Busan 49315, Republic of Korea.
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7
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Auffray T, Arriaga-Jiménez A, Taudière A, Roy LJM, Lapeyre B, Roy L. Attractant Activity of Host-Related Chemical Blends on the Poultry Red Mite at Different Spatial Scales. J Chem Ecol 2023; 49:18-35. [PMID: 36534242 DOI: 10.1007/s10886-022-01399-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/24/2022] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
Many blood-feeding arthropods use volatile organic compounds (VOCs) to detect their vertebrate hosts. The role of chemical interactions in mediating the behavior of hematophagous insects and ticks has been investigated before but remains poorly understood in hematophagous mesostigmatic mites. The poultry red mite Dermanyssus gallinae is an obligatory blood-sucking mesostigmatic mite that feeds on birds and causes damage in poultry farms. We characterized the attractive response of D. gallinae to candidate VOCs previously reported from the odor emitted by living hens. We performed in-vitro choice-test bioassays as well as semi-field and field trials using baited and unbaited traps, in the presence and absence of hens. Among different tested combinations of VOCs, a blend of 5 VOCs (mix1.0) was significantly attractive to our reference population of D. gallinae in vitro, whereas the same individual compounds tested alone were not attractive. Ammonia was attractive on its own and increased the mix1.0 attractiveness. The attractiveness of mix1.0 was confirmed at 'natural' spatial scales in the absence of hens both at the lab and on the farm that provided the reference population. The presence of hens inhibited the mix1.0 attractiveness. The attractive power of mix1.0 was not found in other farms. This research is an important step to advance our understanding of host-parasite interactions in hematophagous mesostigmatic mites and paves the way for developing alternative control tools against D. gallinae by interfering with chemical interactions. Moreover, it underlines the importance of assessing kairomonal activity on different pest populations when developing attract-and-kill systems.
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Affiliation(s)
- Thomas Auffray
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | - Alfonsina Arriaga-Jiménez
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France.,Insect Ecology Lab, School of Environmental and Rural Sciences, University of New England, Armidale, NSW, 2350, Australia
| | - Adrien Taudière
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | | | - Benoît Lapeyre
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | - Lise Roy
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France.
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Qi X, Li H, Wang B, Meng J, Wang X, Sun W, Pan B. Identification of guanine and hematin as arrestment pheromones of poultry red mites, Dermanyssus gallinae (Acari: Dermanyssidae) and their application in mite control. Vet Parasitol 2023; 313:109843. [DOI: 10.1016/j.vetpar.2022.109843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
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9
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Microbiome comparison of Dermanyssus gallinae populations from different farm rearing systems and the presence of common endosymbiotic bacteria at developmental stages. Parasitol Res 2023; 122:227-235. [PMID: 36401143 DOI: 10.1007/s00436-022-07721-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/05/2022] [Indexed: 11/21/2022]
Abstract
The hematophagous arthropod, Dermanyssus gallinae (Poultry red mite, PRM) can cause remarkable economic losses in the poultry industry across the globe. Although overall composition of endosymbiotic bacteria has been shown in previous studies, how farm habitats influence the microbiome remains unclear. In the present study, we compared the bacterial communities of D. gallinae populations collected from the cage and free-range farms using next-generation sequences targeting the V3-V4 hypervariable region of the 16S rRNA gene. The QIIME2 pipeline was followed in bioinformatic analyses. Proteobacteria represented a great majority of the total bacterial community of D. gallinae from both farming systems. More specifically, Bartonella-like bacteria (40.8%) and Candidatus Cardinium (21.5%) were found to be predominant genera in free-range and cage rearing systems, respectively. However, the microbiome variation based on farming systems was not statistically significant. In addition, the presence of the five common endosymbiotic bacteria (Wolbachia, Cardinium, Rickettsiella, Spiroplasma, and Schineria) was screened in different developmental stages of D. gallinae. Cardinium was detected in all developmental stages of D. gallinae. On the other hand, Wolbachia and Rickettsiella were only found in adults/nymphs, but neither in the eggs nor larvae. To our knowledge, this study provides the first microbiome comparison at genus-level in D. gallinae populations collected from different farm habitats and will contribute to the knowledge of the biology of D. gallinae.
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10
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Jian Y, Yuan H, Li D, Guo Q, Li X, Zhang S, Ning C, Zhang L, Jian F. Evaluation of the in vitro acaricidal activity of Chinese herbal compounds on the poultry red mite (Dermanyssus gallinae). Front Vet Sci 2022; 9:996422. [PMID: 36238438 PMCID: PMC9551093 DOI: 10.3389/fvets.2022.996422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 08/16/2022] [Indexed: 11/24/2022] Open
Abstract
The poultry red mite Dermanyssus gallinae is an economically important pest in poultry farms worldwide, but an effective treatment option is lacking. The current study determined the effectiveness of six Chinese herbal medicines [Syzygium aromaticum (clove), Hibiscus syriacus (Hibiscus), Illicium verum (star anise), Leonurus artemisia (motherwort), Cinnamomum cassia (cinnamon), and Taraxacum sp. (dandelion)] against D. gallinae. Alcohol extracts were prepared via the solvent extraction method and the phenol, flavonoid, and tannin contents were determined. These active components were highest in S. aromaticum and lowest in H. syriacus, I. verum. No tannin content was detected in L. artemisia. All extracts showed contact toxicity against D. gallinae at a test concentration of 1 g/mL, with S. aromaticum and L. artemisia resulting in 100% mortality. S. aromaticum, L. artemisia, and I. verum showed the best efficacy (LC50 0.159, 0.200, and 0.292 g/mL, respectively). Different combinations of extracts showed an additive effect of I. verum LC90 + L. artemisia LC90. The acaricidal efficacy of this combination was tested against different developmental stages of D. gallinae, being most efficacious against nymphal and larval D. gallinae, with a corrected mortality rate of 100%. However, inhibition of egg hatching was only 53.69%. Taken together, these results highlight I. verum LC90 + L. artemisia LC90 as a promising compound with severe contact toxicity against D. gallinae. Given the wide cultivation of these species and their extensive use in foodstuffs and cosmetics as flavors and fragrances, they could be a cheap, readily available ecofriendly alternative to pesticides currently used in poultry farms.
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Affiliation(s)
- Yichen Jian
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Huizhen Yuan
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Dongliang Li
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Qing Guo
- Hennan Hemu Animal Pharmaceutical Co., Ltd., Zhengzhou, China
| | - Xiaoying Li
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Sumei Zhang
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Changshen Ning
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Longxian Zhang
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
| | - Fuchun Jian
- College of Animal Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- International Joint Research Center for Animal Immunology of China, Zhengzhou, China
- *Correspondence: Fuchun Jian ;
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Matos M, Bilic I, Palmieri N, Mitsch P, Sommer F, Tvarogová J, Liebhart D, Hess M. Epidemic of cutaneous fowlpox in a naïve population of chickens and turkeys in Austria: Detailed phylogenetic analysis indicates co-evolution of fowlpox virus with reticuloendotheliosis virus. Transbound Emerg Dis 2022; 69:2913-2923. [PMID: 34974640 PMCID: PMC9787674 DOI: 10.1111/tbed.14446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/20/2021] [Accepted: 12/28/2021] [Indexed: 12/30/2022]
Abstract
Cutaneous fowlpox is a disease of chickens and turkeys caused by the fowlpox virus (FWPV), characterized by the development of proliferative lesions and scabs on unfeathered areas. FWPVs regularly carry an integrated, active copy of the reticuloendotheliosis virus (REV), and it has been hypothesized that such FWPVs are more problematic in the field. Extensive outbreaks are usually observed in tropical and sub-tropical climates, where biting insects are more difficult to control. Here, we report an epidemic of 65 cutaneous fowlpox cases in Austria in layer chickens (91% of the cases) and broiler breeders and turkeys, all of them unvaccinated against the disease, from October 2018 to February 2020. The field data revealed appearance in flocks of different sizes ranging from less than 5000 birds up to more than 20,000 animals, with the majority raised indoors in a barn system. The clinical presentation was characterized by typical epithelial lesions on the head of the affected birds, with an average decrease of 6% in egg production and an average weekly mortality of 1.2% being observed in the flocks. A real-time multiplex polymerase chain reaction (PCR) confirmed the presence of FWPV-REV DNA, not only in the lesions but also in the environmental dust from the poultry houses. The integration of the REV provirus into the FWPV genome was confirmed by PCR, and revealed different FWPV genome populations carrying either the REV long terminal repeats (LTRs) or the full-length REV genome, reiterating the instability of the inserted REV. Two selected samples were fully sequenced by next generation sequencing (NGS), and the whole genome phylogenetic analysis revealed a regional clustering of the FWPV genomes. The extensive nature of these outbreaks in host populations naïve for the virus is a remarkable feature of the present report, highlighting new challenges associated with FWPV infections that need to be considered.
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Affiliation(s)
- Miguel Matos
- Clinic for Poultry and Fish MedicineDepartment for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
| | - Ivana Bilic
- Clinic for Poultry and Fish MedicineDepartment for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
| | - Nicola Palmieri
- Clinic for Poultry and Fish MedicineDepartment for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
| | | | | | - Jana Tvarogová
- Clinic for Poultry and Fish MedicineDepartment for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
| | - Dieter Liebhart
- Clinic for Poultry and Fish MedicineDepartment for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
| | - Michael Hess
- Clinic for Poultry and Fish MedicineDepartment for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
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The Relationship between Animal Welfare and Farm Profitability in Cage and Free-Range Housing Systems for Laying Hens in China. Animals (Basel) 2022; 12:ani12162090. [PMID: 36009680 PMCID: PMC9405104 DOI: 10.3390/ani12162090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Several countries and regions have regulations in place to provide standards for the welfare of production animals, which have implications for breeding, management and trade. In the chicken egg production industry, the welfare impacts of this are not well understood. In the past decades, free-range systems were widely used for local chicken breeds in poultry industry in China, but their use has gradually declined due to the lower competitiveness compared to commercial cage systems. However, the practices of free-range systems for hens raising have gradually increased again over the past decade, as consumer individualized demand for higher food quality and animal welfare has increased. We recruited 14 free-range farms and 45 cage farms from Beijing, Shandong, Hebei, Anhui, Yunnan, Gansu and Jiangsu provinces in China, for an evaluation of hen welfare, production and economic outcomes from farm operations. This study provides data for the welfare outcomes of laying hens in China and preliminarily explored the relationship between welfare level and economic income within farming system types. The researchers visited the farms and used Welfare Quality measures to investigate the welfare, and farm self-reported profits. Nonparametric Mann−Whitney U tests were used to compare the welfare scores between cage and free-range rearing farms. Correlation and regression are used for the analysis of the animal welfare scores, economic data, and production metrics. The general income from free-range farms was linearly correlated with red mite score and stocking density (p < 0.001 and p < 0.05, respectively). The results showed less centimeters of feeder and drinker space per animal in the free-range system than in cage systems (p < 0.05 and p < 0.01, respectively). Welfare scores for both the stocking density and beak condition were significantly better in the free-range systems than the cage systems (p < 0.001), as were qualitative behavior assessment scores (p < 0.05). The total egg production and peak egg production in cage farms were much higher than in free-range farms (p < 0.001), and egg loss rate was significantly lower (p < 0.001). While the production efficiency of free-range farms was lower than that of cage farms, general income per 10,000 hens was actually higher. Our results provide some evidence that some welfare indicators and general income (per 10,000 hens) in free-range farms in China were better than those of cage farms. The results indicate that better parasite control and lower stocking densities may result in improved hen welfare on free-range farms and potentially improve profitability. The level of welfare and economic benefits of free-range farms vary widely, and there was potential room for improvement in feeding space, drinking water space and human−animal relationship.
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Sulzbach A, Mallmann D, Silva FR, Ferla NJ, da Silva GL, Johann L. In vitro evaluation of the response of Dermanyssus gallinae to products in aqueous suspension. EXPERIMENTAL & APPLIED ACAROLOGY 2022; 86:201-209. [PMID: 35142955 DOI: 10.1007/s10493-022-00697-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
The hematophagous mite Dermanyssus gallinae poses a serious sanitary problem in the Brazilian laying poultry industry. Its control is typically performed with acaricides, either in powder or liquid form. However, the intensive use of these products has caused populations of this species to develop tolerance and even resistance. The aim of the present study is to evaluate the response of eggs and adults of D. gallinae to products in aqueous suspension according to commercial indication and as per the recommendations of the Brazilian Ministry of Agriculture, Livestock and Supply. The study used four acaricide products (product 1: cypermethrin, chlorpyrifos, and piperonyl butoxide; product 2: alkyl-benzyl-dimethyl ammonium chloride, glutaraldehyde, deltamethrin; product 3: dichlorvos; product 4: fluralaner) tested in vitro using the contact method. Distilled water was used in the control group. The effectiveness of each of the products differed significantly between eggs and adults. Products 2, 3, and 4 caused 100% of adult mortality up to day 5 after start of treatment, product 1 97.5%. The corrected mortality (non-viability) of eggs was 21.4% (product 1) 39.4% (product 2), 47.8% (product 3), and 14.4% (product 4). Although the products evaluated were effective against adults of D. gallinae, their effectiveness against eggs was lower under the same conditions. This finding might be directly related to frequent D. gallinae reinfestations in poultry houses.
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Affiliation(s)
- Angelica Sulzbach
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Av. Avelino Talini, 171, prédio 21, sala 106, Bairro Universitário, Lajeado, Rio Grande do Sul, 95914-014, Brazil.
| | - Daniele Mallmann
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Av. Avelino Talini, 171, prédio 21, sala 106, Bairro Universitário, Lajeado, Rio Grande do Sul, 95914-014, Brazil
| | | | - Noeli Juarez Ferla
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Av. Avelino Talini, 171, prédio 21, sala 106, Bairro Universitário, Lajeado, Rio Grande do Sul, 95914-014, Brazil
| | - Guilherme Liberato da Silva
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Av. Avelino Talini, 171, prédio 21, sala 106, Bairro Universitário, Lajeado, Rio Grande do Sul, 95914-014, Brazil
| | - Liana Johann
- Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari - Univates, Av. Avelino Talini, 171, prédio 21, sala 106, Bairro Universitário, Lajeado, Rio Grande do Sul, 95914-014, Brazil
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14
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Xu X, Wang C, Liu Q, Huang Y, Sun W, Pan B. Two ferritins from Dermanyssus gallinae: characterization and in vivo assessment as protective antigens. PEST MANAGEMENT SCIENCE 2022; 78:561-571. [PMID: 34595835 DOI: 10.1002/ps.6664] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/04/2021] [Accepted: 09/30/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND The poultry red mite, Dermanyssus gallinae is recognized worldwide as the most important bloodsucking ectoparasite in layer and breeder flocks. In bloodsucking ectoparasites, ferritins (FERs), the iron-storage proteins, play a pivotal role in dealing with the challenge of large amounts of released iron during the digestion of blood meal. However, no information is available concerning FERs of D. gallinae. The aim of the present study was to investigate the characteristics, functions and the vaccine efficacy of FERs in D. gallinae. RESULTS Two heavy-chain FERs of D. gallinae were identified and characterized. Phylogenetic analysis indicated that Dg-FER1 may be a secretory FER and Dg-FER2 an intracellular one. RNAi results demonstrated that Dg-fers play key roles in mite survival, successful reproduction and blood digestion. Immunization with rDg-FER1 or rDg-FER2 successfully induced chickens to produce high levels of antigen-specific IgY, resulting in a significant increase in mite mortality (by 58.67% on Day 5) and decreases in oviposition (by 42.15%) and fecundity (by 68.97%) in the rDg-FER1 group, and a 13.73% increase in mite mortality and a 20.89% decrease in fecundity in the rDg-FER1 group. The overall immunization efficacy of rDg-FER1 was 93.51%. CONCLUSION Two Dg-FERs are crucial to the survival, reproduction and blood digestion of D. gallinae. This study has provided preliminary evidence demonstrating the potential of rDg-FER1 as a vaccine antigen for D. gallinae. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Xiaolin Xu
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chuanwen Wang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qi Liu
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yu Huang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Weiwei Sun
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Baoliang Pan
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Beijing, China
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15
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Schiavone A, Pugliese N, Otranto D, Samarelli R, Circella E, De Virgilio C, Camarda A. Dermanyssus gallinae: the long journey of the poultry red mite to become a vector. Parasit Vectors 2022; 15:29. [PMID: 35057849 PMCID: PMC8772161 DOI: 10.1186/s13071-021-05142-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/22/2021] [Indexed: 11/18/2022] Open
Abstract
The possibility that Dermanyssus gallinae, the poultry red mite, could act as a vector of infectious disease-causing pathogens has always intrigued researchers and worried commercial chicken farmers, as has its ubiquitous distribution. For decades, studies have been carried out which suggest that there is an association between a wide range of pathogens and D. gallinae, with the transmission of some of these pathogens mediated by D. gallinae as vector. The latter include the avian pathogenic Escherichia coli (APEC), Salmonella enterica serovars Enteritidis and Gallinarum and influenza virus. Several approaches have been adopted to investigate the relationship between D. gallinae and pathogens. In this comprehensive review, we critically describe available strategies and methods currently available for conducting trials, as well as outcomes, analyzing their possible strengths and weaknesses, with the aim to provide researchers with useful tools for correctly approach the study of the vectorial role of D. gallinae.
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Importance and Impact of the Poultry Red Mite (Dermanyssus gallinae) in Layer Farms - Analysis of Farmers’ Perception. MACEDONIAN VETERINARY REVIEW 2021. [DOI: 10.2478/macvetrev-2021-0026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Poultry red mite (PRM), Dermanyssus gallinae, causes egg drop production, anemia and can be a vector in transmitting diseases. The PRM control mainly focuses on usage of the conventional chemical biocides. The objective of this study was to analyze the farmers’ perception regarding the impact, management and control of PRM in Macedonian layer farms. The data were collected with direct on-site visits using a unified questionnaire. In total, 29 poultry farms (28% of farms in the country), all with conventional cages, were part of this study. The data were analyzed by descriptive statistics, inferential statistics and Naïve Bayes Classifier technique. In 30% of the poultry farms the farmers had observed that the flock was infested with PRM. In total, 32 different treatments against PRM were reported from the farmers, and three of them were non-biocide treatments. The most used biocides (17% of the farms) were crude oil, Formalin, Neopitroid® and disinfectants. The highest agreement regarding biocides application among the farms (38%) was before the production starts. Most of the farmers applied biocides routinely, before the infestation is evident (75%). The median costs for PRM treatment were 175€ per flock, higher in the infested farms 493±677€ compared to non - infested 100±71€, p<0.05. None of the Macedonian farmers included in the study was using monitoring method for PRM infestation, contributing to poor data records. This study highlights the need of developing unified strategy for PRM control included in the Integrated Pest Management in poultry layer farms.
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Canton L, Canton C, Ceballos L, Domínguez P, Rodríguez J, Lanusse C, Alvarez L, Moreno L. Oral and topical extra-label administration of fipronil to laying hens: Assessment of the egg residue patterns. J Vet Pharmacol Ther 2021; 44:808-819. [PMID: 33763877 DOI: 10.1111/jvp.12965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 10/14/2020] [Accepted: 02/19/2021] [Indexed: 11/28/2022]
Abstract
This experimental work reproduces the fipronil extra-label administration performed by producers in laying hens. The scientific goal was to characterize the residual concentrations in eggs from treated hens and suggest the withdrawal periods that should be respected to avoid risk for consumers. Thirty-four laying hens were allocated into two groups: Group A was treated with fipronil in feed, two single doses of 1 mg kg-1 day-1 ; Group B was administered a single dose of 1 mg kg-1 by the topical route. Fipronil egg residues were quantified by HPLC-MS/MS. Fipronil and its sulphone metabolite (fipronil-SO2 ) were measured in egg after both treatments. The highest egg residual profile was always for fipronil-SO2 . Mean maximum egg concentrations (Cmax ) of 228.5 ± 79.8 ng/g (fipronil) and 1,849 ± 867 ng/g (fipronil-SO2 ) were found after fipronil administration in feed. The lowest residual levels were quantified after the topical treatment with Cmax of 27.1 ± 4.9 and 163 ± 26 ng/g for fipronil and fipronil-SO2 . Mean fipronil marker residues and established MRLs allowed calculating the withdrawal periods, the shortest being 74 days after topical administration. Such a long withdrawal period is difficult to meet in egg production systems. Thus, the extra-label use of fipronil in laying hens should not be recommended under any circumstances.
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Affiliation(s)
- Lucila Canton
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Candela Canton
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Laura Ceballos
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Paula Domínguez
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - José Rodríguez
- Instituto Nacional de Tecnología Agropecuaria (INTA, Balcarce, Argentina
| | - Carlos Lanusse
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Luis Alvarez
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Laura Moreno
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
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18
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Case of Human Infestation with Dermanyssus gallinae (Poultry Red Mite) from Swallows (Hirundinidae). Pathogens 2021; 10:pathogens10030299. [PMID: 33806588 PMCID: PMC8001604 DOI: 10.3390/pathogens10030299] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/24/2021] [Accepted: 02/28/2021] [Indexed: 11/19/2022] Open
Abstract
Dermanyssus gallinae (the poultry red mite, PRM) is an important ectoparasite in the laying hen industry. PRM can also infest humans, causing gamasoidosis, which is manifested as skin lesions characterized by rash and itching. Recently, there has been an increase in the reported number of human infestation cases with D. gallinae, mostly associated with the proliferation of pigeons in cities where they build their nests. The human form of the disease has not been linked to swallows (Hirundinidae) before. In this report, we describe an incident of human gamasoidosis linked to a nest of swallows built on the window ledge of an apartment in the island of Kefalonia, Greece. Mites were identified as D. gallinae using morphological keys and amplifying the Cytochrome C oxidase subunit I (COI) gene by PCR. Bayesian phylogenetic analysis and median-joining network supported the identification of three PRM haplogroups and the haplotype isolated from swallows was identical to three PRM sequences isolated from hens in Portugal. The patient was treated with topical corticosteroids, while the house was sprayed with deltamethrin. After one week, the mites disappeared and clinical symptoms subsided. The current study is the first report of human gamasoidosis from PRM found in swallows’ nest.
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19
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Chen W, Bartley K, Nunn F, Bowman AS, Sternberg JM, Burgess STG, Nisbet AJ, Price DRG. RNAi gene knockdown in the poultry red mite, Dermanyssus gallinae (De Geer 1778), a tool for functional genomics. Parasit Vectors 2021; 14:57. [PMID: 33461614 PMCID: PMC7813172 DOI: 10.1186/s13071-020-04562-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
Background The avian haematophagous ectoparasite Dermanyssus gallinae, commonly known as the poultry red mite, causes significant economic losses to the egg-laying industry worldwide and also represents a significant welfare threat. Current acaricide-based controls are unsustainable due to the mite’s ability to rapidly develop resistance, thus developing a novel sustainable means of control for D. gallinae is a priority. RNA interference (RNAi)-mediated gene silencing is a valuable tool for studying gene function in non-model organisms, but is also emerging as a novel tool for parasite control. Methods Here we use an in silico approach to identify core RNAi pathway genes in the recently sequenced D. gallinae genome. In addition we utilise an in vitro feeding device to deliver double-stranded (ds) RNA to D. gallinae targeting the D. gallinae vATPase subunit A (Dg vATPase A) gene and monitor gene knockdown using quantitative PCR (qPCR). Results Core components of the small interfering RNA (siRNA) and microRNA (miRNA) pathways were identified in D. gallinae, which indicates that these gene silencing pathways are likely functional. Strikingly, the P-element-induced wimpy testis (PIWI)-interacting RNA (piRNA) pathway was absent in D. gallinae. In addition, feeding Dg vATPase A dsRNA to adult female D. gallinae resulted in silencing of the targeted gene compared to control mites fed non-specific lacZ dsRNA. In D. gallinae, dsRNA-mediated gene knockdown was rapid, being detectable 24 h after oral delivery of the dsRNA, and persisted for at least 120 h. Conclusions This study shows the presence of core RNAi machinery components in the D. gallinae genome. In addition, we have developed a robust RNAi methodology for targeting genes in D. gallinae that will be of value for studying genes of unknown function and validating potential control targets in D. gallinae. ![]()
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Affiliation(s)
- Wan Chen
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK.,Institute of Biological and Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3FX, UK
| | - Kathryn Bartley
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK
| | - Francesca Nunn
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK
| | - Alan S Bowman
- Institute of Biological and Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3FX, UK
| | - Jeremy M Sternberg
- Institute of Biological and Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3FX, UK
| | - Stewart T G Burgess
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK
| | - Alasdair J Nisbet
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK
| | - Daniel R G Price
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK.
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20
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Fumigant activity of essential oils from Cinnamomum and Citrus spp. and pure compounds against Dermanyssus gallinae (De Geer) (Acari: Dermanyssidae) and toxicity toward the nontarget organism Beauveria bassiana (Vuill.). Vet Parasitol 2021; 290:109341. [PMID: 33472157 DOI: 10.1016/j.vetpar.2021.109341] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 12/23/2020] [Accepted: 12/27/2020] [Indexed: 11/22/2022]
Abstract
Dermanyssus gallinae(De Geer) (Acari: Dermanyssidae) is the main ectoparasite associated with laying poultry. This mite is commonly controlled by the application of synthetic chemical insecticides, wich lead to the selection of resistant populations and formation of residues in eggs. Thus, new molecules must be developed to control D. gallinae. This work evaluated the toxicity of essential oils (EOs) from Cinnamomum cassia, Cinnamomum camphora, Cinnamomum camphora var. linalooliferum, Citrus aurantium, Citrus aurantium var. bergamia, Citrus aurantifolia and Citrus reticulata var. tangerine against D. gallinae. Additionally, the chemical profiles of the most bioactive EOs were analyzed by gas chromatography coupled with mass spectrometry (GC-MS) and the major compounds were subjected to new tests using D. gallinae. The most toxic EOs against D. gallinae were evaluated for the nontarget entomopathogenic fungus Beauveria bassiana (Unioeste 88). The EOs from C. cassia (LC50 = 25.43 ± 1.0423 μg/cm3) and C. camphora var. linalooliferum (LC50 = 39.84 ± 1.9635 μg/cm3) were the most active in the fumigant bioassay and caused mortality rates of 96 and 61%, respectively. The GC-MS analysis revealed that the major constituents of EOs from C. cassia and C. camphora var. linalooliferum were trans-cinnamaldehyde and linalool, respectively. The pure compounds, trans-cinnamaldehyde (LC50 = 68.89 ± 3.1391 μg/cm3) and linalool (LC50 = 51.45 ± 1.1967 μg/cm3), were tested on D. gallinae and showed lower toxicity than the EOs. Thus, the compounds were not the only active substances produced by C. cassia and C. camphora var. linalooliferum; moreover synergism may have occurred between the substances. The EOs from C. cassia and C. camphora var. linalooliferum were also toxic to B. bassiana (Unioeste 88). Thus, EOs from C. cassia and C. camphora var. linalooliferum are promising candidates for use in D. gallinae control, but cannot be used in conjunction with the fungus B. bassiana.
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21
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Sparagano OAE, George DR, Finn RD, Giangaspero A, Bartley K, Ho J. Dermanyssus gallinae and chicken egg production: impact, management, and a predicted compatibility matrix for integrated approaches. EXPERIMENTAL & APPLIED ACAROLOGY 2020; 82:441-453. [PMID: 33205360 DOI: 10.1007/s10493-020-00558-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
The poultry red mite, Dermanyssus gallinae, is a worldwide threat to egg production and animal and human welfare. This mite is also a potential vector for several significant diseases. EU regulation that forbids the use of conventional cages for egg-laying hens may favour the growth of D. gallinae, a species known to thrive in more complex housing systems. Current control measures emphasize the use of chemical acaricides, which may have limited efficacy on D. gallinae considering its temporary blood-feeding behaviour. In integrated pest management (IPM), two or more compatible measures targeting physical, environmental, and/or biological aspects could be judiciously combined to enhance the effectiveness against D. gallinae infestation. To inform current and future IPM for D. gallinae, a compatibility matrix is proposed to guide the selection of control measures for field application.
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Affiliation(s)
- O A E Sparagano
- Department of Public Health and Infectious Diseases, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China.
| | - D R George
- School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - R D Finn
- Department of Biochemistry & Genetics, St George's International School of Medicine, Faculty of Health & Life Sciences, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - A Giangaspero
- Department of Science of Agriculture, Food and Environment, University of Foggia, Foggia, 71121, Italy
| | - K Bartley
- Moredun Research Institute, Penicuik, EH26 0PZ, UK
| | - J Ho
- Department of Public Health and Infectious Diseases, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
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Decru E, Mul M, Nisbet AJ, Vargas Navarro AH, Chiron G, Walton J, Norton T, Roy L, Sleeckx N. Possibilities for IPM Strategies in European Laying Hen Farms for Improved Control of the Poultry Red Mite ( Dermanyssus gallinae): Details and State of Affairs. Front Vet Sci 2020; 7:565866. [PMID: 33282928 PMCID: PMC7705068 DOI: 10.3389/fvets.2020.565866] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/01/2020] [Indexed: 12/02/2022] Open
Abstract
The Poultry Red Mite (PRM), Dermanyssus gallinae, is a major threat to the poultry industry worldwide, causing serious problems to animal health and welfare, and huge economic losses. Controlling PRM infestations is very challenging. Conventionally, D. gallinae is treated with synthetic acaricides, but the particular lifestyle of the mite (most of the time spent off the host) makes the efficacy of acaracide sprays often unsatisfactory, as sprays reach only a small part of the population. Moreover, many acaricides have been unlicensed due to human consumer and safety regulations and mites have become resistant to them. A promising course of action is Integrated Pest Management (IPM), which is sustainable for animals, humans and the environment. It combines eight different steps, in which prevention of introduction and monitoring of the pest are key. Further, it focusses on non-chemical treatments, with chemicals only being used as a last resort. Whereas IPM is already widely applied in horticulture, its application is still in its infancy to control D. gallinae in layer houses. This review presents the currently-available possibilities for control of D. gallinae in layer houses for each of the eight IPM steps, including monitoring techniques, established and emerging non-chemical treatments, and the strategic use of chemicals. As such, it provides a needed baseline for future development of specific IPM strategies, which will allow efficient and sustainable control of D. gallinae in poultry farms.
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Affiliation(s)
- Eva Decru
- Experimental Poultry Centre, Geel, Belgium
| | - Monique Mul
- Wageningen Livestock Research, Division Animal Health and Welfare, Wageningen, Netherlands.,MoniqueMul IPM, Wervershoof, Netherlands
| | - Alasdair J Nisbet
- Vaccines and Diagnostics Department Moredun Research Institute, Midlothian, United Kingdom
| | | | | | | | - Tomas Norton
- Group of M3-BIORES, Division of Animal and Human Health Engineering (A2H), Department of BioSystems, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Lise Roy
- CEFE, CNRS, University of Montpellier, University of Paul Valéry Montpellier, EPHE, IRD, Montpellier, France
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Evaluation of the vaccine efficacy of three digestive protease antigens from Dermanyssus gallinae using an in vivo rearing system. Vaccine 2020; 38:7842-7849. [PMID: 33164806 DOI: 10.1016/j.vaccine.2020.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/28/2020] [Accepted: 10/06/2020] [Indexed: 11/22/2022]
Abstract
The poultry red mite (PRM), Dermanyssus gallinae, is a hematophagous ectoparasite considered as the major pest in the egg-laying industry. Vaccination is feasible strategy for controlling the haematophagous PRMs. Cathepsin D (CatD), cathepsin L (CatL) and legumain (Lgm) are three endopeptidases participating in digestion of hemoglobin in ticks. The in vitro test and the on-hen feeding device have been used to evaluate the efficacy of vaccines against D. gallinae, however they lacked some of the natural feeding cues for mites, resulting in unreliable results. In the present study, a reliable in vivo rearing system which was nearly close to the natural infestation status of mites was applied to evaluate the efficacy of vaccines against D. gallinae. After vaccinations with rDg-CatD-1, rDg-CatL-1 or rDg-Lgm, chicks developed the antigen-specific IgY immune response to each antigen. The survival rates of D. gallinae in three groups decreased significantly after they fed on the immunized birds. And the oviposition rate and fecundity were significantly reduced by 13.18% and 49.90% in the rDg-CatD-1 immunized group, 5.49% and 38.55% in the rDg-CatL-1 immunized group, respectively. Moreover, immunization with rDg-CatD-1 or rDg-CatL-1 significantly decreased the blood digestion rate of D. gallinae. However, no statistically significant effects on reproduction performance and blood digestion rate of mite were observed in group immunized with rDg-Lgm. Our results demonstrated that immunization with rDg-CatD-1 or rDg-CatL-1 could prevent and control D. gallinae by reducing the survival, reproductive capacity and blood digestion of mite. Importantly, the evaluation system based on the in vivo rearing system was reliable and practical, and it can accurately evaluate the effects of immunization on D. gallinae for pre-screening of potential novel antigens.
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24
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Cocciolo G, Circella E, Pugliese N, Lupini C, Mescolini G, Catelli E, Borchert-Stuhlträger M, Zoller H, Thomas E, Camarda A. Evidence of vector borne transmission of Salmonella enterica enterica serovar Gallinarum and fowl typhoid disease mediated by the poultry red mite, Dermanyssus gallinae (De Geer, 1778). Parasit Vectors 2020; 13:513. [PMID: 33054854 PMCID: PMC7556571 DOI: 10.1186/s13071-020-04393-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 10/07/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The poultry red mite Dermanyssus gallinae (De Geer, 1778) is a major ectoparasite of poultry. Infestations are found in most laying hen farms in Europe, and breeder flocks have also been reported to be affected. Mite infestation has detrimental effects on animal welfare, it causes significant economic losses, and, additionally, D. gallinae is often considered as a vector for pathogens. Despite suspicion of a close relationship between the poultry red mite and Salmonella enterica enterica serovar Gallinarum biovar Gallinarum (serovar Gallinarum), the causative agent of fowl typhoid disease (FT), there has been no definitive proof of mite-mediated transmission. Therefore, an investigation was conducted to determine if D. gallinae-mediated transmission of serovar Gallinarum could be demonstrated among four different hen groups. METHODS Two groups of 8 hens (A and B) were experimentally infected with serovar Gallinarum in two isolators. After 7 days, when birds showed signs of FT, about 25,000 mites were introduced. After 3 days, mites were harvested and used to infest two other hen groups of 8 (C and D), in two separate isolators. The health status of hens was constantly monitored; detection and quantification of serovar Gallinarum were performed by PCR and qPCR from mites and organs of dead hens. The maximum likelihood estimation of the infection rate and mite vectorial capacity were calculated. RESULTS Clinical disease was observed in groups infected with serovar Gallinarum (A and B) and in hens of groups C and D infested with mites harvested from the isolators containing groups A and B. In all four groups, serovar Gallinarum was detected from liver, spleen, ovary, and cecum of hens, thus confirming the diagnosis of FT. Mite analysis demonstrated the presence of the pathogen, with an estimated infection rate ranging between 13.72 and 55.21 infected per thousand mites. Vectorial capacity was estimated to be 73.79. CONCLUSIONS Mites harvested from birds infected with serovar Gallinarum were shown to carry the mite, and then to transfer serovar Gallinarum to isolated groups of pathogen-free birds that subsequently showed signs of FT. Mite vectorial capacity was high, demonstrating that D. gallinae should be considered an effective vector of FT.
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Affiliation(s)
- Giulio Cocciolo
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Valenzano, Italy
| | - Elena Circella
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Valenzano, Italy
| | - Nicola Pugliese
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Valenzano, Italy
| | - Caterina Lupini
- Dipartimento di Scienze Mediche Veterinarie, Università di Bologna, Bologna, Italy
| | - Giulia Mescolini
- Dipartimento di Scienze Mediche Veterinarie, Università di Bologna, Bologna, Italy
| | - Elena Catelli
- Dipartimento di Scienze Mediche Veterinarie, Università di Bologna, Bologna, Italy
| | | | - Hartmut Zoller
- MSD Animal Health Innovation GmbH, Schwabenheim, Germany
| | | | - Antonio Camarda
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Valenzano, Italy.
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25
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Oh SI, Park KT, Jung Y, Do YJ, Choe C, Cho A, Kim S, Yoo JG. A sampling and estimation method for monitoring poultry red mite ( Dermanyssus gallinae) infestation on caged-layer poultry farms. J Vet Sci 2020; 21:e41. [PMID: 32476315 PMCID: PMC7263914 DOI: 10.4142/jvs.2020.21.e41] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 02/08/2020] [Accepted: 03/02/2020] [Indexed: 11/20/2022] Open
Abstract
Background The poultry red mite, Dermanyssus gallinae, is a serious problem in the laying hen industry worldwide. Currently, the foremost control method for D. gallinae is the implementation of integrated pest management, the effective application of which necessitates a precise monitoring method. Objectives The aim of the study was to propose an accurate monitoring method with a reliable protocol for caged-layer poultry farms, and to suggest an objective classification for assessing D. gallinae infestation on caged-layer poultry farms according to the number of mites collected using the developed monitoring method. Methods We compared the numbers of mites collected from corrugated cardboard traps, regarding with length of sampling periods, sampling sites on cage, and sampling positions in farm buildings. The study also compared the mean numbers of mites collected by the developed method with the infestation levels using by the conventional monitoring methods in 37 caged-layer farm buildings. Results The statistical validation provided the suitable monitoring method that the traps were installed for 2 days on feed boxes at 27 sampling points which included three vertical levels across nine equally divided zones of farms. Using this monitoring method, the D. gallinae infestation level can be assessed objectively on caged-layer poultry farms. Moreover, the method is more sensitive than the conventional method in detecting very small populations of mites. Conclusions This method can be used to identify the initial stages of D. gallinae infestation in the caged-layer poultry farms, and therefore, will contribute to establishment of effective control strategies for this mite.
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Affiliation(s)
- Sang Ik Oh
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Ki Tae Park
- Poultry Research Institute, National Institute of Animal Science, Rural Development Administration, Pyeongchang 25342, Korea
| | - Younghun Jung
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Yoon Jung Do
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Changyong Choe
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Ara Cho
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Suhee Kim
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Jae Gyu Yoo
- Division of Animal Disease & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea.
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26
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Lee HJ, Jeong JY, Jeong OM, Youn SY, Kim JH, Kim DW, Yoon JU, Kwon YK, Kang MS. Impact of Dermanyssus gallinae infestation on persistent outbreaks of fowl typhoid in commercial layer chicken farms. Poult Sci 2020; 99:6533-6541. [PMID: 33248568 PMCID: PMC7705004 DOI: 10.1016/j.psj.2020.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/20/2020] [Accepted: 09/11/2020] [Indexed: 12/02/2022] Open
Abstract
Although it has rapidly decreased since the early 2000s, fowl typhoid still occurs in commercial layer chickens, causing a significant economic loss in Korea. There is growing concern about the emergence of new pathogenic strains of the causative agent, Salmonella Gallinarum, which is able to overcome vaccine immunity. It has also been suspected that the poultry red mite, Dermanyssus gallinae, which is commonly found in layer chicken farms, may be an important cause of the recurrence of fowl typhoid in the farms. This study was conducted to examine changes in the virulence of recent isolates of S. Gallinarum obtained from layer farms and estimate the potential of the disease transmission of D. gallinae in the farms. Clinical and environmental samples and mites collected from layer farms affected by fowl typhoid between 2013 and 2018 were tested for S. Gallinarum. The isolates were characterized by genotypic analyses and in vitro virulence assays with chicken-derived cell lines. Vaccine protection against recent isolates was examined in the chickens. A total of 45 isolates of S. Gallinarum were collected and there was no evidence of changes in their virulence. It has also been demonstrated that the S. Gallinarum 9R vaccine strain widely used in Korea is still effective in controlling fowl typhoid if the susceptibility of birds to the disease is not increased by stress. Salmonella Gallinarum isolated from the outer and inner parts of D. gallinae, environmental dust, and dead birds of the same farm showed the same or closely related genotypes. Consequently, the present study indicated that the horizontal transmission and environmental persistence of S. Gallinarum and the increased disease susceptibility of chickens in layer farms could be mediated by D. gallinae, causing persistent outbreaks of fowl typhoid.
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Affiliation(s)
- Hye-Jin Lee
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | - Ji-Yeon Jeong
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | - Ok-Mi Jeong
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | - So-Youn Youn
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | - Jin-Hyun Kim
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | - Dong-Wan Kim
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | | | - Yong-Kuk Kwon
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea
| | - Min-Su Kang
- Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Korea.
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27
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Karp-Tatham E, Küster T, Angelou A, Papadopoulos E, Nisbet AJ, Xia D, Tomley FM, Blake DP. Phylogenetic Inference Using Cytochrome C Oxidase Subunit I (COI) in the Poultry Red Mite, Dermanyssus gallinae in the United Kingdom Relative to a European Framework. Front Vet Sci 2020; 7:553. [PMID: 32974406 PMCID: PMC7472527 DOI: 10.3389/fvets.2020.00553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 07/14/2020] [Indexed: 11/21/2022] Open
Abstract
The poultry red mite (Dermanyssus gallinae), an obligatory blood feeding ectoparasite, is primarily associated with laying hens where it is estimated to cause losses of ~€231 million per annum to European farmers. Moderate to high infestation levels result in negative impacts on hen welfare, including increased cannibalism, irritation, feather pecking, restlessness, anemia, and mortality. Acaricides are currently the prevailing method of population control for D. gallinae, although resistance against some classes of acaricide has been widely reported. The development of resistance highlights a growing need for research into alternative control methods, including the development of a suitable and effective vaccine. Understanding the genetic structure of D. gallinae populations can support improved management of acaricide resistance and sustainability of future vaccines, but limited data are currently available. The aim of this study was to characterize D. gallinae isolates from Europe, targeting the cytochrome c oxidase subunit 1 (COI) gene to gain an insight into population structure and genetic diversity of currently circulating mites. Dermanyssus gallinae isolates were collected from Albania, Belgium, Croatia, Czech Republic, Denmark, France, Greece, Italy, the Netherlands, Portugal, Romania, Slovenia, Turkey and the United Kingdom. Genomic DNA was extracted from individual adult D. gallinae mites and a 681bp fragment of the COI gene was amplified and sequenced. Phylogenetic analyses of 195 COI sequences confirmed the presence of multiple lineages across Europe with 76 distinct haplotypes split across three main haplogroups and six sub-haplogroups. Importantly there is considerable inter- and intra-country variation across Europe, which could result from the movement of poultry or transfer of contaminated equipment and/or materials and husbandry practices.
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Affiliation(s)
- Eleanor Karp-Tatham
- Pathobiology and Population Sciences, The Royal Veterinary College, Brookmans Park, United Kingdom
| | - Tatiana Küster
- Pathobiology and Population Sciences, The Royal Veterinary College, Brookmans Park, United Kingdom
| | - Athanasios Angelou
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Elias Papadopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alasdair J Nisbet
- Vaccines, Pentlands Science Park, Moredun Research Institute, Penicuik, United Kingdom
| | - Dong Xia
- Pathobiology and Population Sciences, The Royal Veterinary College, Brookmans Park, United Kingdom
| | - Fiona M Tomley
- Pathobiology and Population Sciences, The Royal Veterinary College, Brookmans Park, United Kingdom
| | - Damer P Blake
- Pathobiology and Population Sciences, The Royal Veterinary College, Brookmans Park, United Kingdom
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28
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Sparagano O. A nonexhaustive overview on potential impacts of the poultry red mite (Dermanyssus gallinae) on poultry production systems. J Anim Sci 2020; 98:S58-S62. [PMID: 32810241 DOI: 10.1093/jas/skaa136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 04/24/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Olivier Sparagano
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
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29
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Mesostigmatid mites (Acari: Mesostigmata) at the domestic-wildlife interface: Poultry and passerine birds of central Argentina. Vet Parasitol 2020; 284:109203. [PMID: 32827991 DOI: 10.1016/j.vetpar.2020.109203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 08/08/2020] [Accepted: 08/09/2020] [Indexed: 11/22/2022]
Abstract
Wild birds may be considered a possible source of parasitic mesostigmatid mites for poultry, but only few studies explored this hypothesis. In addition, there is very little information about the parasitic mites present in commercial poultry systems from southern South America. To contribute with data on parasitic mesostigmatid mites at the domestic-wildlife interface, we conducted a study in which samples were systematically collected from laying hens and wild birds (adults and nestlings), for two years at three commercial laying hen farms. The occurrence of mesostigmatid mites were compared among hosts. A proportion of the collected mites were morphologically identified to the species level, finding that host preference varied greatly depending on mite species: laying hens were only parasitized by Ornithonyssus sylviarum, wild bird nestlings were mostly parasitized by Ornithonyssus bursa, and in small proportion, by O. sylviarum, while adult passerines were parasitized by both Ornithonyssus species, and sporadically by Pellonyssus cf. reedi and Dermanyssus cf. triscutatus. In laying hens, there was intra- and inter-annual variability in mite occurrence, but no consistent seasonal pattern, whereas in adult wild birds, mites showed the highest prevalence in spring and the lowest in summer. Not coinciding with this general pattern, the occurrence of O. bursa matched the reproductive activity of wild birds. A phylogenetic analysis based on a fragment of the 16S rRNA gene was carried out for a subsample of the mites collected, showing that the O. sylviarum mites present on adult wild birds and laying hens had the same haplotype (100% identity). Additionally, mites obtained from wild birds morphologically identified as O. bursa presented two distinctive haplotypes (89.8% identity), one phylogenetically related to O. sylviarum and the other to O. monteiroi. These findings show that in central Argentina commercial laying hens are parasitized mainly by O. sylviarum while wild birds are also hosts to other mite species. Adult wild passerines, especially house sparrows, may be a source of O. sylviarum for commercial poultry.
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30
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Sparagano OAE, Ho J. Parasitic Mite Fauna in Asian Poultry Farming Systems. Front Vet Sci 2020; 7:400. [PMID: 32733926 PMCID: PMC7363926 DOI: 10.3389/fvets.2020.00400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/04/2020] [Indexed: 01/07/2023] Open
Abstract
The ubiquitous presence of hematophagous avian mites threatens the poultry industry in Asia and worldwide, adversely affecting the quality and quantity of eggs and poultry meat produced by affected flocks. This leads to considerable economic loss and welfare-related issues. The role of these blood-feeding arthropods as disease vectors is increasingly recognized as they may carry important zoonotic and epizootic pathogens. The poultry mites, Dermanyssus gallinae (Poultry Red Mite-PRM), Ornithonysus sylviarum (Northern Fowl Mite-NFM), and Ornithonyssus bursa (Tropical Fowl Mite-TFM) are endemic species across the Asian continent. In less frequency, scaly leg mite, depluming mite, and fowl cyst mite were documented. Considering global climate change and the popularity of backyard farming, the incidence of avian mite infestation is expected to increase as Asian production expands. The TFM may start to colonize sub-tropical nations where the seasonal temperature is comparable to tropical regions. Pyrethroids, organophosphates, carbamates, and macrocyclic lactones are licensed acaricides for use in China, Japan, and India. In recent years, the development of acaricide resistance has compromised the efficacy of chemical control measures. Several botanical acaricides based on plant and fungal constituents are being investigated. Judicious integration of multiple approaches to manage poultry mite infestation is advised. In this article, we review the prevalence, geographical distribution, zoonotic potential, and control measures of avian mites in poultry farms in Asia.
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Affiliation(s)
- Olivier A. E. Sparagano
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
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31
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Akhoundi M, Brun S, Marteau A, Debédat J, Ben Romdhane H, Izri A. Occasional human infestations by feral pigeons' ectoparasites: Two case reports. Clin Case Rep 2020; 8:1255-1260. [PMID: 32695370 PMCID: PMC7364103 DOI: 10.1002/ccr3.2764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 11/07/2022] Open
Abstract
Dermanyssus infestation is a rural parasitic problem occurs occasionally in urban areas in people with close contact to pigeons. It can be diagnosed through clinical cutaneous symptoms in exposed body parts, nocturnal itching, and presence of mites in infested locations and can be treated by antiacaricide, environmental, and symptomatic treatments.
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Affiliation(s)
| | - Sophie Brun
- Parasitology‐Mycology DepartmentAvicenne HospitalAP‐HPBobignyFrance
| | - Anthony Marteau
- Parasitology‐Mycology DepartmentAvicenne HospitalAP‐HPBobignyFrance
| | - Jean Debédat
- INSERM UMRS, Nutrition and ObesitiesSorbonne UniversityParisFrance
| | | | - Arezki Izri
- Parasitology‐Mycology DepartmentAvicenne HospitalAP‐HPBobignyFrance
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32
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Alves LFA, de Oliveira DGP, Pares RB, Sparagano OAE, Godinho RP. Association of mechanical cleaning and a liquid preparation of diatomaceous earth in the management of poultry red mite, Dermanyssus gallinae (Mesostigmata: Dermanyssidae). EXPERIMENTAL & APPLIED ACAROLOGY 2020; 81:215-222. [PMID: 32378067 DOI: 10.1007/s10493-020-00497-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
The poultry red mite (PRM), Dermanyssus gallinae, is an ectoparasite of great importance related to poultry farms worldwide. Problems associated with its control have led to the search for alternative treatments, especially using inert dust, which has recently been introduced into liquid formulations. Therefore, the objective of this work was to evaluate the acaricidal activity of a liquid diatomaceous earth (DE) preparation in the laboratory and its association with mechanical cleaning (brushing) in the field. In the laboratory it was first determined that a concentration of 10% DE would be necessary for field applications. The field experiment was conducted in a commercial poultry house. The 10% DE liquid preparation was administered in three applications and associated to mechanical cleaning. Then, 42 days after the first DE application, a population reduction of 94.7% was observed in relation to the initial population of mites. These results confirm the efficiency of DE applications in association with mechanical cleaning already adopted in poultry houses as an alternative for the control of D. gallinae, which can also contribute to avoiding mite resistance to chemical acaricides.
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Affiliation(s)
| | | | - Rafaela Barbosa Pares
- Agricultural Biotechnology Lab, Western Paraná State University, Cascavel, PR, Brazil
| | - Olivier A E Sparagano
- Department of Infectious Diseases and Public Health, City University of Hong Kong, Hong Kong, Hong Kong SAR
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33
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Oh SI, Do YJ, Kim E, Yi SW, Yoo JG. Prevalence of poultry red mite (Dermanyssus gallinae) in Korean layer farms and the presence of avian pathogens in the mite. EXPERIMENTAL & APPLIED ACAROLOGY 2020; 81:223-238. [PMID: 32435982 DOI: 10.1007/s10493-020-00502-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
The poultry red mite, Dermanyssus gallinae, is a blood-feeding parasite of layer hens and a potential vector of several avian infectious agents. High infestation with D. gallinae in layer farm buildings could result in economic losses, and the mites may act as a reservoir of avian pathogens within farms. This study aimed to assess the prevalence of D. gallinae in layer farm buildings in Korea and to investigate avian pathogens in the collected mites. The mite samples were collected from 36 Korean layer farm buildings on 21 farms nationwide. Information obtained from each farm building included the flock size, flock age, methods for controlling D. gallinae, and cleaning status. Association between these variables and the population density of D. gallinae was analyzed. Additionally, the presence of 10 avian pathogens was assessed using DNA samples from mites collected in 16 farm buildings. The prevalence of D. gallinae was 75% at the farm building level (90.5% at the farm level). Repetitive cleaning procedures for each building were significantly related with the mite infestation level, and the most influential factor for determining the mite population in the layer farm buildings. In the 16 DNA samples, we detected avian pathogenic Escherichia coli (n = 6), wild-type fowlpox virus (n = 3), wild-type Marek's disease virus (n = 2), chicken anemia virus (n = 1), and fowl adenovirus (n = 1). These findings suggest that repetitive cleaning procedures for the layer farm buildings could decrease the numbers of D. gallinae which may transmit avian pathogens within the farm.
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Affiliation(s)
- Sang-Ik Oh
- Rural Development Administration, Division of Animal Disease & Health, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Wanju, 55365, Republic of Korea
| | - Yoon Jung Do
- Rural Development Administration, Division of Animal Disease & Health, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Wanju, 55365, Republic of Korea
| | - Eunju Kim
- Rural Development Administration, Division of Animal Disease & Health, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Wanju, 55365, Republic of Korea
| | - Seung Won Yi
- Rural Development Administration, Division of Animal Disease & Health, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Wanju, 55365, Republic of Korea
| | - Jae Gyu Yoo
- Rural Development Administration, Division of Animal Disease & Health, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Wanju, 55365, Republic of Korea.
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Sargison ND, Jacinavicius FC, Fleming RH, Chaudhry UN, Costa-Junior LM. Investigation of a gamasid mite infestation in a UK textile mill caused by Dermanyssus gallinae (DeGeer, 1778) (Mesostigmata: Dermanyssidae) special lineage L1. Parasitol Int 2020; 78:102146. [PMID: 32442496 DOI: 10.1016/j.parint.2020.102146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 10/24/2022]
Abstract
A recurrent mite infestation affecting a room used to inspect fabric in a UK textile mill was investigated to allay concerns of any potential health risks to factory staff, and to inform the unknown risk of downgrading of the product. The approach integrated conventional morphological examination of adult female mites by referring to published identification keys, with molecular speciation based on amplification of a 16S ribosomal DNA fragment. The methods enabled the mites to be unambiguously identified as Dermanyssus gallinae 'special lineage L1'. Subsequent investigations showed the source of infestation to be pigeons nesting in the air ducts, with the gamasid mites moving into the room once the young birds had fledged. This is the first report of D. gallinae 'special lineage L1' in northern Europe. Previous reports of nosocominal gamasoidosis caused by D. gallinae 'special lineage L1' originating from feral pigeon populations have been from southern Europe. Confirmation of the mite identity was important in allowing the mill to take remedial and preventive action. In this clinical communication, we provide images of the key morphological features used to identify D. gallinae and describe a molecular protocol to confirm 'special lineage L1'.
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Affiliation(s)
- N D Sargison
- University of Edinburgh, Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Veterinary Centre, Roslin, Midlothian EH25 9RG, UK.
| | - F C Jacinavicius
- Instituto Butantan, Laboratório de Coleções Zoológicas, São Paulo, São Paulo, Brazil
| | - R H Fleming
- University of Edinburgh, Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Veterinary Centre, Roslin, Midlothian EH25 9RG, UK.
| | - U N Chaudhry
- University of Edinburgh, Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Veterinary Centre, Roslin, Midlothian EH25 9RG, UK.
| | - L M Costa-Junior
- Federal University of Maranhão, Pathology Department, São Luís, Maranhão, Brazil
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Lima-Barbero JF, Contreras M, Mateos-Hernández L, Mata-Lorenzo FM, Triguero-Ocaña R, Sparagano O, Finn RD, Strube C, Price DR, Nunn F, Bartley K, Höfle U, Boadella M, Nisbet AJ, de la Fuente J, Villar M. A vaccinology Approach to the Identification and Characterization of Dermanyssus Gallinae Candidate Protective Antigens for the Control of Poultry Red Mite Infestations. Vaccines (Basel) 2019; 7:vaccines7040190. [PMID: 31756972 PMCID: PMC6963798 DOI: 10.3390/vaccines7040190] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/07/2019] [Accepted: 11/15/2019] [Indexed: 11/16/2022] Open
Abstract
The poultry red mite (PRM), Dermanyssus gallinae, is a hematophagous ectoparasite considered as the major pest in the egg-laying industry. Its pesticide-based control is only partially successful and requires the development of new control interventions such as vaccines. In this study, we follow a vaccinology approach to identify PRM candidate protective antigens. Based on proteomic data from fed and unfed nymph and adult mites, we selected a novel PRM protein, calumenin (Deg-CALU), which is tested as a vaccine candidate on an on-hen trial. Rhipicephalus microplus Subolesin (Rhm-SUB) was chosen as a positive control. Deg-CALU and Rhm-SUB reduced the mite oviposition by 35 and 44%, respectively. These results support Deg-CALU and Rhm-SUB as candidate protective antigens for the PRM control.
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Affiliation(s)
- José Francisco Lima-Barbero
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
- Sabiotec, S.A. Ed., Polivalente UCLM, Camino de Moledores, 13005 Ciudad Real, Spain;
| | - Marinela Contreras
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
| | - Lourdes Mateos-Hernández
- UMR BIPAR, INRA, Ecole Nationale Vétérinaire d´Alfort, ANSES, Université Paris-Est, 94700 Maisons-Alfort, France;
| | - Francisco Manuel Mata-Lorenzo
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
| | - Roxana Triguero-Ocaña
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
| | - Olivier Sparagano
- Department of Infectious Diseases and Public Health, City University of Hong Kong, Kowloon, Hong Kong SAR, China;
| | - Robert D. Finn
- Department of Applied Sciences, Faculty of Health & Life Sciences, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK;
- St George’s International School of Medicine, Keith B. Taylor Global Scholars Program, Northumbria University, Newcastle NE1 8ST, UK
| | - Christina Strube
- Institute for Parasitology, Centre for Infection Medicine, University of Veterinary Medicine Hannover, 30559 Hannover, Germany;
| | - Daniel R.G. Price
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh, Midlothian EH26 0PZ, UK (F.N.); (K.B.); (A.J.N.)
| | - Francesca Nunn
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh, Midlothian EH26 0PZ, UK (F.N.); (K.B.); (A.J.N.)
| | - Kathryn Bartley
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh, Midlothian EH26 0PZ, UK (F.N.); (K.B.); (A.J.N.)
| | - Ursula Höfle
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
| | - Mariana Boadella
- Sabiotec, S.A. Ed., Polivalente UCLM, Camino de Moledores, 13005 Ciudad Real, Spain;
| | - Alasdair J. Nisbet
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh, Midlothian EH26 0PZ, UK (F.N.); (K.B.); (A.J.N.)
| | - José de la Fuente
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078-2007 USA
- Correspondence: (J.F.); (M.V.)
| | - Margarita Villar
- SaBio. Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13071 Ciudad Real, Spain; (J.F.L.-B.); (M.C.); (F.M.M.-L.); (R.T.-O.); (U.H.)
- Biochemistry Section, Faculty of Science and Chemical Technologies, and Regional Centre for Biomedical Research [CRIB], University of Castilla-La Mancha, 13071 Ciudad Real, Spain
- Correspondence: (J.F.); (M.V.)
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Opportunities for integrated pest management to control the poultry red mite, Dermanyssus gallinae. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933911000079] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Acaricidal drug resistance in poultry red mite (Dermanyssus gallinae) and approaches to its management. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933914000105] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Swe PM, Zakrzewski M, Waddell R, Sriprakash KS, Fischer K. High-throughput metagenome analysis of the Sarcoptes scabiei internal microbiota and in-situ identification of intestinal Streptomyces sp. Sci Rep 2019; 9:11744. [PMID: 31409870 PMCID: PMC6692375 DOI: 10.1038/s41598-019-47892-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/24/2019] [Indexed: 10/29/2022] Open
Abstract
Multiple parasitic arthropods of medical importance depend on symbiotic bacteria. While the link between scabies and secondary bacterial infections causing post infective complications of Group A streptococcal and staphylococcal pyoderma is increasingly recognized, very little is known about the microbiota of Sarcoptes scabiei. Here we analyze adult female mite and egg metagenome datasets. The majority of adult mite bacterial reads matched with Enterobacteriaceae (phylum Proteobacteria), followed by Corynebacteriaceae (phylum Actinobacteria). Klebsiella was the most dominant genus (78%) and Corynebacterium constituted 9% of the assigned sequences. Scabies mite eggs had a more diverse microbial composition with sequences from Proteobacteria being the most dominant (75%), while Actinobacteria, Bacteroidetes and Firmicutes accounted for 23% of the egg microbiome sequences. DNA sequences of a potential endosymbiont, namely Streptomyces, were identified in the metagenome sequence data of both life stages. The presence of Streptomyces was confirmed by conventional PCR. Digital droplet PCR indicated higher Streptomyces numbers in adult mites compared to eggs. Streptomyces were localized histologically in the scabies mite gut and faecal pellets by Fluorescent In Situ Hybridization (FISH). Streptomyces may have essential symbiotic roles in the scabies parasite intestinal system requiring further investigation.
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Affiliation(s)
- Pearl M Swe
- Infectious Diseases Program, Cell and Molecular Biology Department, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Martha Zakrzewski
- Medical Genomics Program, Genetics & Computational Biology Department, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Rebecca Waddell
- Infectious Diseases Program, Cell and Molecular Biology Department, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Kadaba S Sriprakash
- Infectious Diseases Program, Cell and Molecular Biology Department, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Katja Fischer
- Infectious Diseases Program, Cell and Molecular Biology Department, QIMR Berghofer Medical Research Institute, Brisbane, Australia.
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Sleeckx N, Van Gorp S, Koopman R, Kempen I, Van Hoye K, De Baere K, Zoons J, De Herdt P. Production losses in laying hens during infestation with the poultry red mite Dermanyssus gallinae. Avian Pathol 2019; 48:S17-S21. [PMID: 31298932 DOI: 10.1080/03079457.2019.1641179] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A research centre with 30,568 laying hens, kept in enriched cages and in aviaries, had become naturally infested with poultry red mites (PRM) in 32 of its 48 bird units. Therefore, at the age of 52 weeks all hens were treated with fluralaner through the drinking water. After this treatment, PRM were no longer observed. As all birds were of the same age, and since production figures were measured daily in all 48 units, this offered a unique opportunity to examine how PRM had affected performance. Statistical analyses were done to compare the evolution of production data from the pre-treatment to the post-treatment period in units that were visually free of PRM or infested with PRM to different levels. Production standards provided by the breeding organizations were used as a reference. The results demonstrated significant posttreatment increases of laying percentage, egg weight, egg mass, percentage first choice eggs, feed intake and body weight in heavily infested hens of one or both housing systems, as compared to the non-infested controls. These data confirm that PRM infestations can impact the main performance traits related to profitability of laying hen farms as well as the hens' general condition.
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Affiliation(s)
- Nathalie Sleeckx
- Experimental Poultry Centre - Province of Antwerp , Geel , Belgium
| | | | - Rik Koopman
- MSD Animal Health International , Boxmeer , Netherlands
| | - Ine Kempen
- Experimental Poultry Centre - Province of Antwerp , Geel , Belgium
| | | | - Kris De Baere
- Experimental Poultry Centre - Province of Antwerp , Geel , Belgium
| | - Johan Zoons
- Experimental Poultry Centre - Province of Antwerp , Geel , Belgium
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Lima-Barbero JF, Díaz-Sanchez S, Sparagano O, Finn RD, de la Fuente J, Villar M. Metaproteomics characterization of the alphaproteobacteria microbiome in different developmental and feeding stages of the poultry red mite Dermanyssus gallinae (De Geer, 1778). Avian Pathol 2019; 48:S52-S59. [PMID: 31267762 DOI: 10.1080/03079457.2019.1635679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The poultry red mite (PRM), Dermanyssus gallinae (De Geer, 1778), is a worldwide distributed ectoparasite and considered a major pest affecting the laying hen industry in Europe. Based on available information in other ectoparasites, the mite microbiome might participate in several biological processes and the acquisition, maintenance and transmission of pathogens. However, little is known about the role of PRM as a mechanical carrier or a biological vector in the transmission of pathogenic bacteria. Herein, we used a metaproteomics approach to characterize the alphaproteobacteria in the microbiota of PRM, and variations in its profile with ectoparasite development (nymphs vs. adults) and feeding (unfed vs. fed). The results showed that the bacterial community associated with D. gallinae was mainly composed of environmental and commensal bacteria. Putative symbiotic bacteria of the genera Wolbachia, C. Tokpelaia and Sphingomonas were identified, together with potential pathogenic bacteria of the genera Inquilinus, Neorickettsia and Roseomonas. Significant differences in the composition of alphaproteobacterial microbiota were associated with mite development and feeding, suggesting that bacteria have functional implications in metabolic pathways associated with blood feeding. These results support the use of metaproteomics for the characterization of alphaproteobacteria associated with the D. gallinae microbiota that could provide relevant information for the understanding of mite-host interactions and the development of potential control interventions. Research highlights Metaproteomics is a valid approach for microbiome characterization in ectoparasites. Alphaproteobacteria putative bacterial symbionts were identified in D. gallinae. Mite development and feeding were related to variations in bacterial community. Potentially pathogenic bacteria were identified in mite microbiota.
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Affiliation(s)
- José Francisco Lima-Barbero
- SaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM , Ronda de Toledo 12, 13071 Ciudad Real , Spain.,Sabiotec, S.A. Ed. Polivalente UCLM Ciudad Real , Spain
| | - Sandra Díaz-Sanchez
- SaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM , Ronda de Toledo 12, 13071 Ciudad Real , Spain
| | - Olivier Sparagano
- Department of Infectious Diseases and Public Health, City University of Hong Kong , Kowloon , Hong Kong, SAR
| | - Robert D Finn
- Department of Applied Sciences, Faculty of Health & Life Sciences, Northumbria University , Newcastle Upon Tyne , UK
| | - José de la Fuente
- SaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM , Ronda de Toledo 12, 13071 Ciudad Real , Spain.,Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University , Stillwater , USA
| | - Margarita Villar
- SaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM , Ronda de Toledo 12, 13071 Ciudad Real , Spain
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Cafiero MA, Barlaam A, Camarda A, Radeski M, Mul M, Sparagano O, Giangaspero A. Dermanysuss gallinae attacks humans. Mind the gap! Avian Pathol 2019; 48:S22-S34. [DOI: 10.1080/03079457.2019.1633010] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Maria Assunta Cafiero
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Alessandra Barlaam
- Department of Science of Agriculture, Food and Environment, University of Foggia, Foggia, Italy
| | - Antonio Camarda
- Department of Veterinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
| | - Miroslav Radeski
- Department for Animal Hygiene and Environmental Protection, Faculty of Veterinary Medicine, Ss. Cyril and Methodius University, Skopje, Macedonia
| | - Monique Mul
- Wageningen Livestock Research, Wageningen, The Netherlands
| | - Olivier Sparagano
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, SAR
| | - Annunziata Giangaspero
- Department of Science of Agriculture, Food and Environment, University of Foggia, Foggia, Italy
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Xu X, Wang C, Zhang S, Huang Y, Pan T, Wang B, Pan B. Acaricidal efficacy of orally administered macrocyclic lactones against poultry red mites (Dermanyssus gallinae) on chicks and their impacts on mite reproduction and blood-meal digestion. Parasit Vectors 2019; 12:345. [PMID: 31300011 PMCID: PMC6624947 DOI: 10.1186/s13071-019-3599-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/05/2019] [Indexed: 12/03/2022] Open
Abstract
Background The poultry red mite (PRM), Dermanyssus gallinae, is one of the most economically deleterious threats to laying-hen industry worldwide. Macrocyclic lactones (MLs) have been widely used in control of mites in mammals, but the effects of MLs on PRMs are not well studied. The main objective of the present study was to systematically evaluate the effects of three MLs, i.e. eprinomectin (EPR), moxidectin (MOX) or ivermectin (IVM), on PRMs fed on chicks following oral administration. Methods Chicks in treatment groups were orally administrated with EPR, MOX or IVM at a dose of 5.0 mg/kg bodyweight. Chicks in the control group received the carrier solvent without drug. Chicks in each cage were then infested with 200 starved adult D. gallinae. After infestation and feeding for 12 h, engorged mites were collected to evaluate the acaricidal efficacy of the MLs, and its impacts on the reproduction and blood-meal digestion of D. gallinae. Results MOX, IVM and EPR demonstrated higher acaricidal efficacies post-treatment compared with the control, i.e. 45.60% for MOX, 71.32% for IVM and 100% for EPR on Day 10. MLs did not have significant effects on the blood-meal ingestion of PRMs, but significantly slowed down blood digestion (P < 0.0001). The oviposition rate, egg hatching rate and fecundity of PRMs in treatment groups were remarkably reduced. Among the three MLs, EPR exhibited the highest performance against PRMs, with an oviposition rate of 1.04%, fecundity of 0.33 eggs per mite and a zero egg hatching rate in EPR treated groups. Conclusions EPR, MOX or IVM administrated orally to chicks increased the mortality of D. gallinae, significantly slowed down their blood-meal digestion and significantly reduced their reproductive capability which included the oviposition rate, fecundity and egg hatching rate. The present study highlights the potential of MLs in the control of PRMs.
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Affiliation(s)
- Xiaolin Xu
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Chuanwen Wang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Shudong Zhang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Yu Huang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Tingting Pan
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Bohan Wang
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China
| | - Baoliang Pan
- Department of Veterinary Parasitology, College of Veterinary Medicine, China Agricultural University, Hai Dian District, Beijing, 100193, China.
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Waap H, Nunes T, Mul MF, Gomes J, Bartley K. Survey on the prevalence of Dermanyssus gallinae in commercial laying farms in Portugal. Avian Pathol 2019; 48:S2-S9. [PMID: 30982335 DOI: 10.1080/03079457.2019.1606415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Dermanyssus gallinae, also known as the poultry red mite (PRM), is a blood-feeding ectoparasite of poultry and sylvatic birds. This mite is endemic in many parts of the globe and poses a threat to the egg industry, while compromising the health and welfare of hens, both directly and as a vector of diseases. In addition, people attacked by D. gallinae may develop gamasoidosis. Despite the high prevalence in several European countries, epidemiological information on D. gallinae in Portugal is scarce. This study aimed to assess the prevalence and infestation levels in laying farms in Portugal and evaluate the perception and attitudes of producers regarding D. gallinae. A survey was performed between August 2016 - November 2017, which included 24 farms in the NUTS2 regions Centro and Norte. Mites were sampled with corrugated cardboard traps and the perception and attitudes of farmers regarding the PRM were evaluated with the European COREMI questionnaire prepared by WG 1 of the COST action FA1404. D. gallinae was detected in 95.8% of farms (95% CI: 79.8-99.3%). The average number of trapped mites among farms was 5200 ± 16,522, with a median of 359 mites (interquartile range = 46-3135). Results from the questionnaire show that insufficient monitoring, under-detection and late and suboptimal treatment may contribute to the maintenance of significant infestation levels. The present data highlight the need for adequate monitoring of D. gallinae, timely action and effective treatment in order to improve poultry productivity and ensure human and animal health and welfare. RESEARCH HIGHLIGHTS A survey on the prevalence of D. gallinae in Portuguese layer farms is presented The perceived importance of D. gallinae was assessed with a questionnaire D. gallinae was detected in 95.8% of farms The results emphasize the need for adequate monitoring and treatment optimization.
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Affiliation(s)
- Helga Waap
- Laboratório de Parasitologia, Instituto Nacional de Investigação Agrária e Veterinária , Oeiras , Portugal.,CIISA, Faculdade de Medicina Veterinária, Universidade de Lisboa , Lisboa , Portugal
| | - Telmo Nunes
- CIISA, Faculdade de Medicina Veterinária, Universidade de Lisboa , Lisboa , Portugal
| | - M F Mul
- Wageningen Livestock Research , Wageningen , The Netherlands
| | - Jacinto Gomes
- Laboratório de Parasitologia, Instituto Nacional de Investigação Agrária e Veterinária , Oeiras , Portugal.,CIISA, Faculdade de Medicina Veterinária, Universidade de Lisboa , Lisboa , Portugal
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Wang C, Huang Y, Zhao J, Ma Y, Xu X, Wan Q, Li H, Yu H, Pan B. First record of Aspergillus oryzae as an entomopathogenic fungus against the poultry red mite Dermanyssus gallinae. Vet Parasitol 2019; 271:57-63. [PMID: 31303205 DOI: 10.1016/j.vetpar.2019.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/16/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
Abstract
The poultry red mite, Dermanyssus gallinae, is a blood-feeding ectoparasite that affects egg-laying hens worldwide. Strategies to control this parasite have focused in the use of entomopathogenic fungi, such as Metarhizium anisopliae. However, only a few studies have evaluated the use of Aspergillus oryzae to control D. gallinae and none of them have employed native strains. In the work presented here, a novel entomopathogenic fungus was isolated from a dead D. gallinae. The results of phylogenetic analysis showed 100% similarity between the isolated strain and those of two species, A. oryzae and Aspergillus flavus, and 99.82% similarity with A. parvisclerotigenus, which were in the same branch of the Flavi section of the genus Aspergillus. This entomopathogenic fungus was a non-aflatoxin B1 producer, as shown by the presence of aflatoxin B1 in the conidial infection suspension. Morphological features of fungus in comparison with A. oryzae and A. flavus indicated that the isolated strain belonged to A. oryzae, and was named Aspergillus sp. Dg-1. The pathogenicity of Aspergillus sp. Dg-1 on D. gallinae at different life stages was then assessed under laboratory conditions. The experiments showed that the isolated strain significantly increased the mortality rate in adult mites, up to 24.83 ± 2.25, compared to the mortality rates in the control group, which were 15.17 ± 2.75 (P < 0.05). However, Aspergillus sp. Dg-1 did not have pathogenic effects on the second nymph stage of D. gallinae. Our findings demonstrate that Aspergillus sp. Dg-1 has pathogenic effects on D. gallinae in their adult stage, presenting biocontrol potential against D. gallinae.
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Affiliation(s)
- Chuanwen Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yu Huang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jiayi Zhao
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yuyun Ma
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xiaolin Xu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Qiang Wan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hao Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - He Yu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Baoliang Pan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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46
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Wang C, Ma Y, Huang Y, Su S, Wang L, Sun Y, Wan Q, Li H, Zhang S, Øines Ø, Pan B. Darkness increases the population growth rate of the poultry red mite Dermanyssus gallinae. Parasit Vectors 2019; 12:213. [PMID: 31064400 PMCID: PMC6505187 DOI: 10.1186/s13071-019-3456-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/23/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The poultry red mite (PRM), Dermanyssus gallinae, is one of the most economically deleterious ectoparasites affecting egg-laying hens worldwide. It may be possible to control D. gallinae populations by manipulating lighting regimes within poultry units. However, no studies have clearly shown the effects of darkness on the population growth rate of D. gallinae. METHODS The effect of darkness on the population growth rate of D. gallinae was investigated, together with the first description of the molecular identity of the mite from China. Mite variables under two lighting regimens (1:23 h L:D and 12:12 h L:D) were compared, including number of mites and eggs, survival and feeding rates, engorgement, oviposition, hatchability and the life-cycle of D. gallinae. RESULTS The results showed that the number of mites (13,763 ± 956) and eggs (5424 ± 317) in the rearing system with prolonged darkness of 1:23 h L:D at 4th week were 2.4- and 3.6-fold higher than those under a conventional lighting regimen of 12:12 h L:D, respectively. The feeding rates of mites under prolonged darkness ranged from 36.7 ± 1.1% to 52.0 ± 7.0%, which were significantly higher than those under conventional lighting regimen (ranging from 22.6 ± 1.9% to 37.3 ± 1.6%). The mean weight of engorged females (0.26 ± 0.01 mg) and the mean number of eggs per female (on average 5.87 ± 0.36) under prolonged darkness were significantly higher than those under conventional lighting regimen (0.22 ± 0.01 mg and 3.62 ± 0.31, respectively). However, the survival rate ranging from 98.07 ± 0.10% to 98.93 ± 0.19%, hatchability of 97.93 ± 0.01% and the life-cycle of D. gallinae (9 days) was not affected by the lighting period. CONCLUSIONS Our findings demonstrated that prolonged darkness significantly promoted the proliferation levels of D. gallinae, resulting in increased number of mites and eggs in the rearing system. The promoted population growth of D. gallinae was found to be related to the increased feeding rate, engorgement level and oviposition level of mites under prolonged darkness. The egg hatchability, the survival rates and the duration of life-cycle of D. gallinae were not affected by the light regimes.
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Affiliation(s)
- Chuanwen Wang
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Yuyun Ma
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Yu Huang
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Shanchun Su
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Lianyu Wang
- Animal Disease Prevention and Control Centre of Pinggu District, Beijing, 101200 China
| | - Yanyan Sun
- Animal Disease Prevention and Control Centre of Pinggu District, Beijing, 101200 China
| | - Qiang Wan
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Hao Li
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Shudong Zhang
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Øivind Øines
- Norwegian Veterinary Institute, PO Box 750, Oslo, Norway
| | - Baoliang Pan
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
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47
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Lee SJ, Kim HK, Kim GH. Toxicity and effects of essential oils and their components on Dermanyssus gallinae (Acari: Dermanyssidae). EXPERIMENTAL & APPLIED ACAROLOGY 2019; 78:65-78. [PMID: 31069572 DOI: 10.1007/s10493-019-00363-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
The acaricidal activity of 30 essential oils against the poultry red mite, Dermanyssus gallinae, female adults and behavioral responses of the mites to these essential oils were investigated. Cinnamon bark oil and clove bud oil showed 100% acaricidal activity after 24 h in the 1.3 μg/m2 treatment. In addition, four components in cinnamon bark oil and three components in clove bud oil were identified using gas chromatography-mass spectrometry. Cinnamon bark oil showed the highest LD50 value among all of the components, and eugenol showed 0.97-fold higher relative toxicity (RT) than the other components of clove bud oil. The fumigant effects of both essential oils and their seven components were observed using a vapor phase toxicity bioassay. All the substances showed repellent activity except for cinnamyl acetate, which did not show any repellent response even in the > 10 μg treatment. In the experiment using the T-tube olfactometer with the 10 μg treatment of each substance, D. gallinae female adults responded to all the substances except cinnamyl acetate. However, eugenol and eugenol acetate showed an attractant effect after 240 and 120 min of treatment, respectively. These results suggest that the two studied essential oils and their components may be used as control agents against D. gallinae.
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Affiliation(s)
- Seung Ju Lee
- Department of Plant Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Hyun Kyung Kim
- Department of Plant Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Gil-Hah Kim
- Department of Plant Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea.
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48
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Pugliese N, Circella E, Marino M, De Virgilio C, Cocciolo G, Lozito P, Cafiero MA, Camarda A. Circulation dynamics of Salmonella enterica subsp. enterica ser. Gallinarum biovar Gallinarum in a poultry farm infested by Dermanyssus gallinae. MEDICAL AND VETERINARY ENTOMOLOGY 2019; 33:162-170. [PMID: 30160309 DOI: 10.1111/mve.12333] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 07/07/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
Dermanyssus gallinae (Mesostigmata: Dermanyssidae, De Geer, 1778) is an ectoparasite of poultry, suspected to play a role as a vector of Salmonella enterica subsp. enterica ser. Gallinarum. Despite an association between them being reported, the actual dynamics in field remain unclear. Therefore, the present study aimed to confirm the interactions among mites, pathogen and chickens. The study was carried out in an industrial poultry farm infested by D. gallinae, during an outbreak of fowl typhoid. The presence of S. Gallinarum in mites was assessed and quantified by a semi-nested polymerase chain reaction (PCR) and real-time PCR, respectively, in mites collected during two subsequent productive cycles and the sanitary break. The anti-group D Salmonella antibodies were quantified by an enzyme-linked immunosorbent assay. During the outbreak and the sanitary break, S. Gallinarum was constantly present in mites. In the second cycle, scattered positivity was observed, although hens did not exhibit signs of fowl typhoid, as a result of the vaccination with BIO-VAC SGP695 (Fatro, Ozzano Emilia Bo, Italy). The data strongly suggest that D. gallinae acts as reservoir of S. Gallinarum, thus allowing the pathogen to persist in farms. Furthermore, the present study has highlighted the interactions among D. gallinae, S. Gallinarum and hens with respect to enhancing the mite-mediated circulation of S. Gallinarum in an infested poultry farm.
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Affiliation(s)
- N Pugliese
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari 'Aldo Moro', Bari, Italy
| | - E Circella
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari 'Aldo Moro', Bari, Italy
| | - M Marino
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari 'Aldo Moro', Bari, Italy
| | - C De Virgilio
- Dipartimento di Bioscienze, Biotecnologie e Biofarmaceutica, Università degli Studi di Bari 'Aldo Moro', Bari, Italy
| | - G Cocciolo
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari 'Aldo Moro', Bari, Italy
| | | | - M A Cafiero
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - A Camarda
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari 'Aldo Moro', Bari, Italy
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49
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Camarda A, Pugliese N, Bevilacqua A, Circella E, Gradoni L, George D, Sparagano O, Giangaspero A. Efficacy of a novel neem oil formulation (RP03™) to control the poultry red mite Dermanyssus gallinae. MEDICAL AND VETERINARY ENTOMOLOGY 2018; 32:290-297. [PMID: 29417605 DOI: 10.1111/mve.12296] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 12/05/2017] [Accepted: 12/18/2017] [Indexed: 06/08/2023]
Abstract
Dermanyssus gallinae (Mesostigmata: Dermanyssidae) is the most harmful ectoparasite of laying hens, represents an occupational hazard for poultry workers, and a growing threat to medical science per se. There is increasing demand for alternative products, including plant-derived acaricides, with which to control the mite. The present study investigated the efficacy of neem oil against D. gallinae on a heavily infested commercial laying hen farm. A novel formulation of 20% neem oil, diluted from a 2400-p.p.m. azadirachtin-concentrated stock (RP03™), was administered by nebulization three times in 1 week. Using corrugated cardboard traps, mite density was monitored before, during and after treatment and results were statistically analysed. Mite populations in the treated block showed 94.65%, 99.64% and 99.80% reductions after the first, second and third product administrations, respectively. The rate of reduction of the mite population was significantly higher in the treated block (P < 0.001) compared with the control and buffer blocks. The results suggest the strong bioactivity of neem, and specifically of the patented neem-based formulation RP03™, against D. gallinae. The treatment was most effective in the 10 days following the first application and its effects persisted for over 2 months. Further studies will aim to overcome observed side effects of treatment represented by an oily layer on equipment and eggs.
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Affiliation(s)
- A Camarda
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - N Pugliese
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - A Bevilacqua
- Department of Science of Agriculture, Food and Environment, University of Foggia, Foggia, Italy
| | - E Circella
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - L Gradoni
- Istituto Superiore di Sanità, Rome, Italy
| | - D George
- Stockbridge Technology Centre, Selby, U.K
| | - O Sparagano
- Centre for Agriculture and Water Resilience (CAWR), Coventry University, Coventry, U.K
| | - A Giangaspero
- Department of Science of Agriculture, Food and Environment, University of Foggia, Foggia, Italy
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50
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Lammers GA, Bronneberg RGG, Vernooij JCM, Stegeman JA. Experimental validation of the AVIVET trap, a tool to quantitatively monitor the dynamics of Dermanyssus gallinae populations in laying hens. Poult Sci 2018; 96:1563-1572. [PMID: 27920194 DOI: 10.3382/ps/pew428] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 10/26/2016] [Indexed: 11/20/2022] Open
Abstract
Dermanyssus gallinae (D.gallinae) infestation causes economic losses due to impaired health and production of hens and costs of parasite control across the world. Moreover, infestations are associated with reduced welfare of hens and may cause itching in humans. To effectively implement control methods it is crucially important to have high quality information about the D.gallinae populations in poultry houses in space and time. At present no validated tool is available to quantitatively monitor the dynamics of all four stages of D.gallinae (i.e., eggs, larvae, nymphs, and adults) in poultry houses.This article describes the experimental validation of the AVIVET trap, a device to quantitatively monitor dynamics of D.gallinae infestations. We used the device to study D.gallinae in fully equipped cages with two white specific pathogen free Leghorn laying hens experimentally exposed to three different infestation levels of D.gallinae (low to high).The AVIVET trap was successfully able to detect D.gallinae at high (5,000 D.gallinae), medium (2,500 D.gallinae), and low (50 D.gallinae) level of D.gallinae infestation. The linear equation Y = 10∧10∧(0.47 + 1.21X) with Y = log10 (Total number of D.gallinae nymphs and adults) in the cage and X = log10 (Total number of D.gallinae nymphs and adults) in the AVIVET trap explained 93.8% of the variation.The weight of D.gallinae in the AVIVET trap also appears to be a reliable parameter for quantifying D.gallinae infestation in a poultry house. The weight of D.gallinae in the AVIVET trap correlates 99.6% (P < 0.000) to the counted number of all stages of D.gallinae in the trap (i.e., eggs, larvae, nymphs, and adults) indicating that the trap is highly specific.From this experiment it can be concluded that the AVIVET trap is promising as quantitative tool for monitoring D.gallinae dynamics in a poultry house.
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Affiliation(s)
- G A Lammers
- AviVet B.V., Gramserweg 21a, 3711AT Austerlitz, Netherlands
| | | | - J C M Vernooij
- University of Utrecht, Department Farm Animal Health. Yalelaan 7,3584CL Utrecht, Netherlands
| | - J A Stegeman
- University of Utrecht, Department Farm Animal Health. Yalelaan 7,3584CL Utrecht, Netherlands
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