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Muñoz-Gómez V, Ma T, Li Y, Rasmussen P, Torgerson PR. Global and regional prediction of coccidiosis and ascaridiosis prevalence in extensive backyard chickens in low-income and middle-income countries. Vet Parasitol 2024; 331:110268. [PMID: 39047535 DOI: 10.1016/j.vetpar.2024.110268] [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: 06/07/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Backyard chickens usually have open housing and scavenge for food, facilitating contact with infective forms of parasites present in the environment and increasing the risk of parasitic infections. Coccidiosis and ascaridiosis are two internal parasites in scavenging chickens that cause production losses to farmers. Prevalence data of these two diseases are scarce in low-income and middle-income countries (LMICs) but necessary to assess the burden of disease in backyard chickens. This study estimates the clinical prevalence of coccidiosis and ascaridiosis at the country and regional levels in all LMICs using regression imputation methods. Regression models were developed with data of known prevalence of these parasites and using primarily climatic factors as predictors. A binomial random effects model was developed for each disease to impute prevalence. The overall estimated prevalence of coccidiosis was 0.39 (95 % CI: 0.37-0.42), with a higher mean prevalence in tropical countries. The overall estimated prevalence of ascaridiosis was 0.23 (95 % CI: 0.22-0.25) with a higher mean prevalence in countries with tropical, temperate and continental climates. The findings of this study can aid to identify the burdens of coccidiosis and ascaridiosis infections across countries and regions, which can inform disease control plans and, and encourage international alliances to facilitate access to preventive measures, improving animal health and reducing production losses.
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Affiliation(s)
- Violeta Muñoz-Gómez
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
| | - Tian Ma
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academic of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Yin Li
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Commonwealth Scientific and Industrial Research Organization, Agriculture and Food, Brisbane, QLD, Australia; School of Veterinary Medicine and Centre for Biosecurity and One Health, Harry Butler Institute, Murdoch University, Perth, WA, Australia
| | - Philip Rasmussen
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Department of Veterinary and Animal Sciences, Section for Animal Welfare and Disease Control, University of Copenhagen, Copenhagen, Denmark
| | - Paul R Torgerson
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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Badri M, Olfatifar M, Hayati A, Bijani B, Samimi R, Abdoli A, Nowak O, Diaz D, Eslahi AV. The global prevalence and associated risk factors of Eimeria infection in domestic chickens: A systematic review and meta-analysis. Vet Med Sci 2024; 10:e1469. [PMID: 38814576 PMCID: PMC11138244 DOI: 10.1002/vms3.1469] [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: 10/30/2023] [Revised: 03/24/2024] [Accepted: 04/21/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Eimeria is a protozoan parasite that affects poultry, particularly chickens, causing a disease known as coccidiosis. This disease imposes substantial significant economic challenges to the poultry sector. OBJECTIVES The current study aimed to estimate the global prevalence and associated risk factors of Eimeria in domestic chickens. METHODS Multiple databases (Scopus, PubMed, ProQuest, Web of Science and Google Scholar) were searched for articles published until June 2023. The pooled prevalence was estimated using a random-effects model with a 95% confidence interval. The statistical analysis was conducted using meta packages in R version (3.6.1). RESULTS In total, 41 articles fulfilled the eligibility criteria. The global pooled prevalence was 44.3% (36.9%-51.8%) with Eimeria tenella (38.7%, 30.1%-47.7%) as the most prevalent species. The highest pooled prevalence was related to the Western Pacific Region (80.5%, 72.6%-87.3%) and urban areas (44.4%, 36.5%-52.6%). Moreover, areas with humid subtropical climates represent the highest overall prevalence (75.8%, 46.6%-95.9%). CONCLUSION The necessity for robust and innovative strategies for preventing and managing this disease cannot be overstated. Addressing Eimeria impact is crucial not only for safeguarding poultry health but also for sustaining the economic viability of the poultry industry.
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Affiliation(s)
- Milad Badri
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Meysam Olfatifar
- Gastroenterology and Hepatology Diseases Research CenterQom University of Medical SciencesQomIran
| | - Alireza Hayati
- Students' Research Committee (SRC)Qazvin University of Medical SciencesQazvinIran
| | - Behzad Bijani
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Rasoul Samimi
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Amir Abdoli
- Zoonoses Research CenterJahrom University of Medical SciencesJahromIran
- Department of Parasitology and MycologyJahrom University of Medical SciencesJahromIran
| | - Oskar Nowak
- Institute of Human Biology and EvolutionFaculty of BiologyAdam Mickiewicz UniversityPoznańPoland
| | - Daniel Diaz
- Facultad de CienciasUniversidad Nacional Autónoma de México, CopilcoCiudad de MéxicoMéxico
| | - Aida Vafae Eslahi
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
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Muñoz-Gómez V, Furrer R, Yin J, Shaw AP, Rasmussen P, Torgerson PR. Prediction of coccidiosis prevalence in extensive backyard chickens in countries and regions of the Horn of Africa. Vet Parasitol 2024; 327:110143. [PMID: 38325134 DOI: 10.1016/j.vetpar.2024.110143] [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: 10/11/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
Coccidiosis is one of the leading morbidity causes in chickens, causing a reduction of body weight and egg production. Backyard chickens are at risk of developing clinical and subclinical coccidiosis due to outdoor housing and scavenging behaviour, jeopardizing food security in households. The objectives of this study were to estimate clinical prevalence of coccidiosis at country and regional levels in the Horn of Africa in extensive backyard chickens. A binomial random effects model was developed to impute prevalence of coccidiosis. Previously gathered prevalence data (n = 40) in backyard chickens was used to define the model. Precipitation (OR: 1.09 (95% CI: 1.05-1.13) and the presence of seasonal rainfall (OR: 1.85, 95% CI: 1.27-2.70) significantly increase prevalence. Results showed an overall prevalence of coccidiosis in the Horn of Africa of 0.21 (95% CI: 0.15-0.29). Ethiopia, the Republic of South Sudan and Kenya showed the highest prevalence and Djibouti the lowest. Significant differences between Djibouti and the countries with highest prevalence were found. However, no evidence of a significant difference between the rest of the countries. Kenya and Ethiopia showed larger prevalence differences between regions. Results could assist with the targeting of testing for coccidiosis, the observation for clinical disease of chickens living in specific regions and as a baseline for the evaluation of future control measures.
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Affiliation(s)
- Violeta Muñoz-Gómez
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
| | - Reinhard Furrer
- Department of Mathematical Modeling and Machine Learning, University of Zurich, Zurich, Switzerland
| | - Jie Yin
- State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing, China
| | - Alexandra Pm Shaw
- Infection Medicine, Biomedical Sciences, Edinburgh Medical School, University of Edinburgh, Edinburgh, United Kingdom; Department of Livestock and One Health, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Philip Rasmussen
- Department of Veterinary and Animal Sciences, Section for Animal Welfare and Disease Control, University of Copenhagen, Copenhagen, Denmark
| | - Paul R Torgerson
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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Benabdelhak AC, Derbak H, Titouah H, Aissanou S, Debbou-Iouknane N, Ayad A. Epidemiological Survey on Post Mortem Coccidiosis in Broiler Chicken in Bejaia Province, Northern Algeria. Acta Parasitol 2024; 69:791-802. [PMID: 38424401 DOI: 10.1007/s11686-024-00806-1] [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: 10/12/2023] [Accepted: 01/19/2024] [Indexed: 03/02/2024]
Abstract
AIM The epidemiological survey was carried out to determine the prevalence of eimeriosis in broiler chickens slaughtered depending the season, to determine the different Eimeria species causing the coccidiosis in poultry farms; and to assess the impact of Eimeria parasite on histomorphological structure and oxidative stress parameters of the intestine. MATERIALS AND METHODS The study was conducted from December 2018 to December 2019 in the province of Bejaia, Algeria. The intestines chickens (n = 366) were obtained immediately after slaughter, each cut into different segments (duodenum, jejunum, ileum, and caecum). Microscopic and parasitological examinations were performed according to standard procedures. Histomorphometric measurements of intestine were obtained using Image J software. Oxidative stress parameters were carried out from intestine tissue. RESULTS Eimeria spp. were detected in 73.77% (95% CI 71.20-76.34) of broiler gut samples. The prevalence varied significantly according to the season, with the lowest rates in winter (42.81%, 95% CI 40.35-45.27) and the highest in autumn (97.92%, 95% CI 97.6-99.4). All seven Eimeria species were identified, most commonly E. necatrix (27.70%), E. brunetti (26.47%), and E. tenella (20.96%). The mean lesion score ranged from 1.51 ± 0.05 to 1.79 ± 0.04. Significant differences in VH/CD ratio of intestinal epithelium (P < 0.001) were observed in different intestinal portions of infested broiler chickens compared to non-infested. The mean MDA concentration of intestinal segments was significantly higher in Eimeria species infested broilers compared to non-infested (P < 0.05). The results show at least one difference in CAT, SOD, and ABTS-+ concentrations (P < 0.05) in both chicken's groups. CONCLUSION Our results revealed that coccidiosis is extremely prevalent in slaughtered broilers, with an abundance of pathogenic Eimeria species. Also, it was concluded that infestation induces tissue structure alterations which coincides with the oxidative damage.
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Affiliation(s)
- Amira Chahrazad Benabdelhak
- Department of Biological Sciences of the Environment, Faculty of Nature and Life Sciences, Université de Bejaia, 06000, Bejaia, Algeria
| | - Hanane Derbak
- Department of Biological Sciences of the Environment, Faculty of Nature and Life Sciences, Université de Bejaia, 06000, Bejaia, Algeria
| | - Hanane Titouah
- Department of Biological Sciences of the Environment, Faculty of Nature and Life Sciences, Université de Bejaia, 06000, Bejaia, Algeria
| | - Sofiane Aissanou
- Department of Biological Sciences of the Environment, Faculty of Nature and Life Sciences, Université de Bejaia, 06000, Bejaia, Algeria
| | - Nedjima Debbou-Iouknane
- Department of Biological Sciences of the Environment, Faculty of Nature and Life Sciences, Université de Bejaia, 06000, Bejaia, Algeria
| | - Abdelhanine Ayad
- Department of Biological Sciences of the Environment, Faculty of Nature and Life Sciences, Université de Bejaia, 06000, Bejaia, Algeria.
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Hassan SMH, Zayeda R, Elakany H, Badr S, Abou-Rawash A, Abd-Ellatieff H. Anticoccidial activity of Aloe Vera Leafs' aqueous extract and vaccination against Eimeria tenella: pathological study in broilers. Vet Res Commun 2024; 48:403-416. [PMID: 37736869 PMCID: PMC10811142 DOI: 10.1007/s11259-023-10222-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: 07/10/2023] [Accepted: 09/16/2023] [Indexed: 09/23/2023]
Abstract
This study aimed to assess the efficacy of an anticoccidial vaccine and the anticoccidial activity of Aloe vera in broiler chickens infected with Eimeria tenella (E. tenella). A total of 225 healthy, sexless, one-day-old broiler chicks (avian48) from a commercial broiler company were randomized into nine experimental groups of 25 chicks. The groups were as follows: Group 1 (control, vaccinated, non-infected), Group 2 (vaccinated and infected with 5 × 104 sporulated oocysts), Group 3 (vaccinated, infected with 5 × 104 sporulated oocysts, and treated with Aloe vera), Group 4 (infected with 5 × 104 sporulated oocysts and treated with Aloe vera), Group 5 (positive control, infected with 5 × 104 sporulated oocysts), Group 6 (challenged with 5 × 104 sporulated oocysts and then treated with amprolium), Group 7 (treated with amprolium), Group 8 (blank control negative group), and Group 9 (treated with Aloe vera gel).Various parameters were evaluated, including clinical signs, growth performance, oocyst shedding, hematological and immunological parameters, and pathological lesion scoring. The results demonstrated that Aloe vera improved growth performance, reduced oocyst shedding, and decreased caecal lesion scores in E. Tenella-infected broiler chicks. The use of Aloe vera in combination with either amprolium or anticoccidial vaccines provided a potential solution to the issues of drug resistance and drug residues.In conclusion, this study provides valuable insights regarding the control of coccidiosis in broilers. Supplementing the chicken diet with Aloe vera had beneficial effects on the pathogenicity and infectivity of E. tenella, making it a cost-effective alternative as an herbal extract with no adverse side effects for coccidiosis control. These findings suggest that Aloe vera can be considered a potential candidate for inclusion in broiler diets for effective coccidiosis control.
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Affiliation(s)
- Shahenaz M H Hassan
- Alexandria Regional Laboratory, Animal Health Research Institute, Agriculture Research Center, Alexandria City, Egypt
| | - Rasha Zayeda
- Animal Health Research Institute, Tanta Regional Laboratory, Tanta City, Egypt
| | - H Elakany
- Department of Poultry and Fish diseases, Faculty of Veterinary Medicine, Damanhour University, Damanhour City, Egypt
| | - Sohair Badr
- Pathology Department, Animal Health Research Institute Agriculture Research Center, Cairo City, Egypt
| | - A Abou-Rawash
- Department of Pathology, Faculty of Veterinary Medicine, Damanhour University, Damanhour Cty, 25511, Egypt.
| | - Hoda Abd-Ellatieff
- Department of Pathology, Faculty of Veterinary Medicine, Damanhour University, Damanhour Cty, 25511, Egypt
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Hassan SM, Zayeda R, Ellakany HF, Badr S, A AA, Abd-ellatieff HA. Anticoccidial Activity of Aloe Vera Leafs’ Aqueous Extract and vaccination Against Eimeria tenella: Pathological Study in Broilers.. [DOI: 10.21203/rs.3.rs-3158113/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
This study aimed to assess the efficacy of an anticoccidial vaccine and the anticoccidial activity of Aloe vera in broiler chickens infected with Eimeria tenella. A total of 225 healthy one-day-old, unsexed broiler chicks (avian48) from a commercial broiler company were randomly divided into nine experimental groups, with 25 chicks in each group. The groups included: Group 1 (control, vaccinated, non-infected), Group 2 (vaccinated and infected with 5×104 sporulated oocysts), Group 3 (vaccinated, infected with 5×104 sporulated oocysts, and treated with Aloe vera), Group 4 (infected with 5×104 sporulated oocysts and treated with Aloe vera), Group 5 (positive control, infected with 5×104 sporulated oocysts), Group 6 (challenged with 5×104 sporulated oocysts and then treated with amprolium), Group 7 (treated with amprolium), Group 8 (blank control negative group), and Group 9 (treated with Aloe vera gel). Various parameters including clinical signs, growth performance, oocyst shedding, hematological and immunological parameters, and pathological lesion scoring were evaluated. The results showed that Aloe vera improved growth performance, reduced oocyst shedding, and decreased caecal lesion scores in broiler chicks infected with Eimeria tenella. The use of Aloe vera in combination with either amprolium or anticoccidial vaccines provided a potential solution to the issues of drug resistance and drug residues. In conclusion, this study provides valuable insights into the control of coccidiosis in broilers. Supplementing the chicken diet with Aloe vera had beneficial effects on the pathogenicity and infectivity of Eimeria tenella, making it a cost-effective alternative as an herbal extract with no adverse side effects for coccidiosis control. These findings suggest that Aloe vera can be considered as a potential candidate for inclusion in broiler diets to effectively control coccidiosis.
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Shah SAA, Qureshi NA, Qureshi MZ, Alhewairini SS, Saleem A, Zeb A. Characterization and bioactivities of M. arvensis, V. officinalis and P. glabrum: In-silico modeling of V. officinalis as a potential drug source. Saudi J Biol Sci 2023; 30:103646. [PMID: 37181636 PMCID: PMC10173785 DOI: 10.1016/j.sjbs.2023.103646] [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: 01/03/2023] [Revised: 03/12/2023] [Accepted: 03/31/2023] [Indexed: 05/16/2023] Open
Abstract
In current study the pharmaceutically active herbs was used against coccidiosis, caused by a protozoan: Eimeria, lead to $ 3 billion loss annually. The aqueous and methanolic extracts of whole plants were applied in-vitro to assess sporulation inhibition (spi) assay and calculated the inhibitory concentration (IC50). For in-vivo study 9 groups of 14 day old broiler chicks were infected with Eimeria tenella and three groups were treated different concentrations of methanolic extracts of Verbena officinalis and Polygonum glabrum post infection. The mean weight gain, oocyst count, diarrhea, biochemical tests, hematology, and histopathology of all groups were analyzed. The herbs were characterized by antioxidant assay, phytochemical screening, Fourier transmission and infrared (FT-IR), Ultra Violet-visible (UV-Vis) spectroscopy and Gas chromatography and mass spectroscopy (GC-MS). The GC-MS identified phyto-compounds of V. officinalis were docked with S-Adenosyl methionine (SAM) synthetase. The in-vitro study revealed that V. officinalis and P. glabrum have minimum IC50 of 0.14 and 12 mg/ml respectively. The in-vivo experiment showed that V. officinalis had significantly high anticoccidial potential with significant hematological profile like drug treated controls. The histology of treated chicks also showed recovery in the studied tissues. The antioxidant assay showed that V. officinalis have 4.19U/mg Superoxide dismutase (SOD) and 33.96 µM/mg Glutathione (GSH) quantities. The chemical characterization confirmed the presence of large number of organic compounds, however Flavonoids found only in V. officinalis, which suggests the anticoccidial potential of V. officinalis because flavonoids as antagonist of thiamine (Prinzo, 1999), because it promotes the carbohydrate synthesis required. Strychane, 1-acetyl-20a-hydroxy-16-methylene has best binding of with target protein with lowest binding score (-6.4 Kcal/mol), suggests its anticoccidial potential in poultry.
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Affiliation(s)
- Syed Aizaz Ali Shah
- Parasitology Laboratory, Department of Zoology, Faculty of Biological Science, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Naveeda Akhtar Qureshi
- Parasitology Laboratory, Department of Zoology, Faculty of Biological Science, Quaid-i-Azam University, Islamabad 45320, Pakistan
- Corresponding author.
| | - Muhammad Zahid Qureshi
- Deanship of Educational Services, Department of Biochemistry, Qassim University, Malidah, Buraida, Al Qassim 51411, Saudi Arabia
| | - Saleh S. Alhewairini
- Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Malidah, Buraida, Al Qassim 51411, Saudi Arabia
| | - Anber Saleem
- Department of Anatomy, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad 44080, Pakistan
| | - Adnan Zeb
- Department of Biotechnology, Faculty of Biological Science, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Mares MM, Al-Quraishy S, Abdel-Gaber R, Murshed M. Morphological and Molecular Characterization of Eimeria spp. Infecting Domestic Poultry Gallus gallus in Riyadh City, Saudi Arabia. Microorganisms 2023; 11:microorganisms11030795. [PMID: 36985368 PMCID: PMC10059139 DOI: 10.3390/microorganisms11030795] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/04/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Coccidiosis in chickens is one of the major problems in the poultry industry, caused by protozoan parasites of the genus Eimeria. The current study used morphological and molecular characteristics to identify Eimeria spp. infecting domestic chickens (Gallus gallus) in the Riyadh region of Saudi Arabia. In this study, 120 domestic poultry were examined and 30 were found to be infected with oocysts of Eimeria spp. (25%). According to the morphology of the recorded oocysts, five species were found. Eimeria necatrix was the first species discovered, and it was distinguished by oblong, ovoid-shaped oocysts with double-layered walls that measured 20 (23-23) and 17 (16-20) μm. The second species was Eimeria maxima, which had oval- to egg-shaped oocysts with double-layered walls and measurements of 28 (26-29) and 23 (20-24) μm. The third species was Eimeria tenella, characterized by oval-shaped oocysts with double-layered walls and measurements of 21 (20-24) × 17 (16-20) μm. Eimeria praecox was the fourth species that was characterized by spherical-shaped oocysts with single-layered walls and measurements of 21 (19-23) × 20 (19-20) μm. Eimeria acervulina was the last species to have oval-shaped oocysts with double-layered walls and measurements of 20 (18-25) and 17 (14-20) μm. The percentages of infection with Eimeria species were as follows: E. tenella, 10.84%; E. necatrix, 5.84%; E. acervulina, 4.16%; E. maxima, 2.5%; and E. praecox, 1.66%. Nested PCR based on the amplification of internal transcribed spacer I (ITS-I) regions confirmed the presence of the five Eimeria species in the examined fecal samples with their specific amplicon sizes: E. necatrix (383 bp), E. maxima (145 bp), E. tenella (278 bp), E. praecopx (116 bp), and E. acervulina (321 bp).
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Affiliation(s)
- Mohammed M Mares
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Saleh Al-Quraishy
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Rewaida Abdel-Gaber
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mutee Murshed
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Akanbi OB, Ola-Fadunsin SD, Odita CI, Furo NA, Yahaya S, Kemza R. Eimeria infections among commercial laying chickens in Nigeria: the prevalence and clinico-histopathological changes. J Parasit Dis 2022; 46:860-868. [PMID: 36091286 PMCID: PMC9458795 DOI: 10.1007/s12639-022-01509-y] [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: 03/16/2022] [Accepted: 06/07/2022] [Indexed: 10/17/2022] Open
Abstract
Coccidiosis is known to affect a wide range of animals including chickens. This study was designed to determine the nation-wide prevalence and clinico-histopathological changes associated with Eimeria infections in commercial laying birds in Nigeria. One Thousand eight hundred and forty-three (1843) commercial laying chickens from 28 states and the Federal Capital Territory (FCT) of Nigeria, between 2007 and 2016 were examined for the presence of Eimeria parasites and for clinicopathological lesions. Simple flotation and the McMaster techniques were used to confirm the presence of Eimeria oocysts and estimate the oocyst load. Positive samples were sporulated for the purpose of species differentiation. Gross and histopathology were carried out accordingly. Two hundred and seven (207) faecal samples/carcasses were positive for Eimeria infections (11.23%; 95% CI = 9.87-12.75). Eimeria tenella and E. necatrix were the most prevalent species. The highest mean oocyst per gram (OPG) was recorded in E. acervulina (5260.87 (± 1838.35)). The prevalence of Eimeria infections in commercial laying birds within the states ranged between 4.4% (Kaduna State), and 33% (Ebonyi and Lagos States), and 21.1% in FCT. There was a higher prevalence of Eimeria infections in commercial laying birds that are less than 1 year compared to those above a year. Eimeria infections was 2.19 times more likely to occur during the wet season compared to the dry season (95% CI = 1.59-3.06; χ2 = 23.29; P = < 0.01). One hundred and eighty-five (185) carcasses showed moderate petechiae to ecchymotic intestinal/caecal mucosa, while 22 carcasses showed severe petechiae to ecchymotic intestinal/caecal mucosa with bloody intestinal lumen. This study appears to be the first nation-wide study on the prevalence and clinico-histopathological changes associated with Eimeria infections in commercial laying chickens in Nigeria.
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Affiliation(s)
- Olatunde B. Akanbi
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Kwara State Nigeria
| | - Shola David Ola-Fadunsin
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Kwara State Nigeria
| | - Christiana Ibironke Odita
- Veterinary Public Health and Preventive Medicine Division, National Veterinary Research Institute, Vom, Plateau State Nigeria
| | - Nathan Ahmadu Furo
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Kwara State Nigeria
| | - Sadiq Yahaya
- Parasitology Division, National Veterinary Research Institute, Vom, Plateau State Nigeria
| | - Rebecca Kemza
- Parasitology Division, National Veterinary Research Institute, Vom, Plateau State Nigeria
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Djemai S, Ayadi O, Khelifi D, Bellil I, Hide G. Prevalence of Eimeria species, detected by ITS1-PCR, in broiler poultry farms located in seven provinces of northeastern Algeria. Trop Anim Health Prod 2022; 54:250. [PMID: 35941299 DOI: 10.1007/s11250-022-03252-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 07/29/2022] [Indexed: 10/15/2022]
Abstract
Coccidiosis is an important global chickens' disease which can cause serious economic losses in the poultry industry worldwide. Little is known about the extent of infection or diversity, of the causative agent Eimeria spp., in Algeria. A priority, therefore, is to determine the prevalence and species composition to inform strategies on treatments and control measures. Samples were collected from 187 broiler farms, located in 7 Northeastern Algerian provinces (Jijel, Constantine, Skikda, Mila, Setif, Batna, Bordj bou-Arreridj), and Internal Transcribed Spacer 1 PCR (ITS1-PCR) was used to determine the prevalence and composition of Eimeria species in chickens. The survey revealed the presence of all seven species of Eimeria at different prevalences (E. maxima (69%), E. acervulina (68.4%), E. necatrix (11.2%), E. tenella (8%), E. praecox (4.3%), E. mitis (2.1%), E. brunetti (2.1%). Multiple infections, with up to 4 different Eimeria species present on a single farm, were the most frequent situation in our samples (51.9% mixed infections versus 47.6% single infections). All farms revealed infected samples, and we conclude that this parasite is a significant problem in these provinces.
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Affiliation(s)
- Samir Djemai
- Laboratoire de Recherche de Pathologie Animale Développement Des Elevages Et Surveillance de La Chaine Alimentaire Des Denrées Animales Ou d'origine Animale (PADESCA), Institute of Veterinary Sciences, University of Constantine, Constantine, Algeria.
| | - Ouarda Ayadi
- Laboratoire de Recherche de Pathologie Animale Développement Des Elevages Et Surveillance de La Chaine Alimentaire Des Denrées Animales Ou d'origine Animale (PADESCA), Institute of Veterinary Sciences, University of Constantine, Constantine, Algeria.,Laboratoire de Parasitologie, Ferhat Abbas University, Setif 1, Setif, Algeria
| | - Daoudi Khelifi
- Laboratoire de Génétique Biochimie Biotechnolgies Végétales (BBGV), University of Constantine, Constantine, Algeria
| | - Ines Bellil
- Laboratoire de Génétique Biochimie Biotechnolgies Végétales (BBGV), University of Constantine, Constantine, Algeria
| | - Geoff Hide
- Biomedical Research Centre, School of Science, Engineering and Environment, University of Salford, Salford, UK
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11
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Alam MZ, Dey AR, Rony SA, Parvin S, Akter S. Phylogenetic analysis of Eimeria tenella isolated from the litter of different chicken farms in Mymensingh, Bangladesh. Vet Med Sci 2022; 8:1563-1569. [PMID: 35384356 PMCID: PMC9297755 DOI: 10.1002/vms3.799] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Eimeria tenella is the most pathogenic intracellular protozoan parasite of seven Eimeria species causing chicken coccidiosis around the world. This species is particularly responsible for caecal coccidiosis leading to serious morbidity–mortality and financial loss in poultry production. Methods The present study explored the genetic diversity of E. tenella. Litter slurry was collected from 18 broiler farms located in Mymensingh district, Bangladesh. Litter samples were processed for oocyst isolation–identification using parasitological techniques followed by genomic DNA extraction from sporulated oocysts. For molecular analysis, the internaltranscribedspacer1 gene of E. tenella was amplified using species‐specific primers and sequenced. After editing and alignment, 263 bp sequences were used for analysis. Results Genetic analysis showed seven distinct genotypes and detected six single nucleotide polymorphisms among the 18 E. tenella isolates. The nucleotide and genotype diversity were 0.00507 and 0.8235, respectively. A phylogenetic tree was constructed with 66 sequences (seven studied genotypes and 59 reference sequences from GenBank database). The neighbour‐joining tree represented that the studied E. tenella isolates were grouped with reference E. tenella isolates with strong nodal support (100%) and the nucleotide sequences of E. tenella, E. necatrix, E. acervulina, E. brunetti, E. maxima, E. mitis and E. praecox formed separate clusters without any geographical boundaries. Conclusions This is the first study on the genetic analysis of E. tenella from Mymensingh district, Bangladesh. These findings will provide baseline data on the species conformation and genetic variations of E. tenella. Further extensive investigation will be needed to reveal the population genetic structure of this parasite and thus will facilitate the planning of effective control strategies.
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Affiliation(s)
- Mohammad Zahangir Alam
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Anita Rani Dey
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Sharmin Aqter Rony
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Shahnaz Parvin
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Shirin Akter
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
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12
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Mesa-Pineda C, Navarro-Ruíz JL, López-Osorio S, Chaparro-Gutiérrez JJ, Gómez-Osorio LM. Chicken Coccidiosis: From the Parasite Lifecycle to Control of the Disease. Front Vet Sci 2021; 8:787653. [PMID: 34993246 PMCID: PMC8724208 DOI: 10.3389/fvets.2021.787653] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/29/2021] [Indexed: 11/26/2022] Open
Abstract
The poultry industry is one of the main providers of protein for the world's population, but it faces great challenges including coccidiosis, one of the diseases with the most impact on productive performance. Coccidiosis is caused by protozoan parasites of the genus Eimeria, which are a group of monoxenous obligate intracellular parasites. Seven species of this genus can affect chickens (Gallus gallus), each with different pathogenic characteristics and targeting a specific intestinal location. Eimeria alters the function of the intestinal tract, generating deficiencies in the absorption of nutrients and lowering productive performance, leading to economic losses. The objective of this manuscript is to review basic concepts of coccidiosis, the different Eimeria species that infect chickens, their life cycle, and the most sustainable and holistic methods available to control the disease.
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Affiliation(s)
| | - Jeffer L. Navarro-Ruíz
- CIBAV Research Group, Facultad de Ciencias Agrarias, Universidad de Antioquia, Medellín, Colombia
| | - Sara López-Osorio
- CIBAV Research Group, Facultad de Ciencias Agrarias, Universidad de Antioquia, Medellín, Colombia
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13
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Attree E, Sanchez-Arsuaga G, Jones M, Xia D, Marugan-Hernandez V, Blake D, Tomley F. Controlling the causative agents of coccidiosis in domestic chickens; an eye on the past and considerations for the future. CABI AGRICULTURE AND BIOSCIENCE 2021; 2:37. [PMID: 34604790 PMCID: PMC8475900 DOI: 10.1186/s43170-021-00056-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/06/2021] [Indexed: 05/07/2023]
Abstract
Coccidiosis is a potentially severe enteritis caused by species of obligate intracellular parasites of the genus Eimeria. These parasites cause significant economic losses to the poultry industry, predominantly due to compromised efficiency of production as well as the cost of control. These losses were recently estimated to cost chicken producers approximately £10.4 billion worldwide annually. High levels of Eimeria infection cause clinical coccidiosis which is a significant threat to poultry welfare, and a pre-disposing contributory factor for necrotic enteritis. Control of Eimeria parasites and coccidiosis is therefore an important endeavour; multiple approaches have been developed and these are often deployed together. This review summarises current trends in strategies for control of Eimeria, focusing on three main areas: good husbandry, chemoprophylaxis and vaccination. There is currently no "perfect solution" and there are advantages and limitations to all existing methods. Therefore, the aim of this review is to present current control strategies and suggest how these may develop in the future.
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Affiliation(s)
- Elizabeth Attree
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
| | - Gonzalo Sanchez-Arsuaga
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
| | - Michelle Jones
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
| | - Dong Xia
- Department of Clinical Science and Services, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
| | - Virginia Marugan-Hernandez
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
| | - Damer Blake
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
| | - Fiona Tomley
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hertfordshire, United Kingdom
- UKRI GCRF One Health Poultry Hub, Ahmedabad, India
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14
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Aitfella Lahlou R, Bounechada M, Mohammedi A, Silva LR, Alves G. Dietary use of Rosmarinus officinalis and Thymus vulgaris as anticoccidial alternatives in poultry. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2021.114826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Cha JO, Belal SA, Kim SJ, Shim KS. Quality traits, fatty acids, mineral content of meat and blood metabolites changes of broiler chickens after artificial infection with sporulated Eimeria tenella oocysts. ITALIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1080/1828051x.2020.1848462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Jang Ock Cha
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju-si, Republic of Korea
| | - Shah Ahmed Belal
- Department of Poultry Science, Sylhet Agricultural University, Sylhet, Bangladesh
| | - Shang Jin Kim
- Department of Veterinary Pharmacology and Toxicology, Jeonbuk National University, Iksan-si, Republic of Korea
| | - Kwan Seob Shim
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju-si, Republic of Korea
- Department of Agricultural Covergence Technology, Jeonbuk National University, Jeonju-si, Republic of Korea
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16
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Schneiders GH, Foutz JC, Fuller AL, Nelson J, Rekaya R, Aggrey SE. The Effect of Increased Temperatures on Viability, Morphology, Infectivity, and Development of Eimeria tenella. J Parasitol 2020; 106:428-437. [PMID: 32603417 DOI: 10.1645/19-17] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Commonly found in backyard and commercial poultry production, coccidiosis, caused by Eimeria species, presents a self-limiting intestinal infection based on the number of ingested oocysts. Heat stress (HS) is one of the major environmental stressors in poultry, predisposing broiler chickens to immunosuppression and rendering them susceptible to diseases. There are suggestions that HS reduces Eimeria oocyst shedding in chickens; however, the relationship between HS and coccidiosis is not well elucidated. The objective of this study was to investigate the effect of temperature on viability, morphology, infectivity, and development of Eimeria tenella in vitro, and merozoite production and oocyst shedding in vivo. In vitro exposure of sporozoites to 55 C for at least 60 min reduced sporozoites viability as shown by morphological changes and rendering them unable to invade Mardin-Darbi bovine kidney (MDBK) cells. Intracellular development of merozoites was significantly reduced by an increase in 2 C in the optimal temperature of incubation in vitro. Most importantly, the induction of HS in the live chickens caused significantly lower lesion scores, reduced merozoite production, and oocyst shedding, resulting in a much less severe disease outcome.
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Affiliation(s)
- G H Schneiders
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, Georgia 30602
| | - J C Foutz
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, Georgia 30602
| | - A L Fuller
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, Georgia 30602
| | - J Nelson
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602
| | - R Rekaya
- Department of Animal and Dairy Science, University of Georgia, Athens, Georgia 30602
| | - S E Aggrey
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, Georgia 30602
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17
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Prevalence and Risk Factors of Intestinal Parasite Infections in Greek Swine Farrow-To-Finish Farms. Pathogens 2020; 9:pathogens9070556. [PMID: 32664245 PMCID: PMC7399844 DOI: 10.3390/pathogens9070556] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/02/2020] [Accepted: 07/07/2020] [Indexed: 11/17/2022] Open
Abstract
Intestinal parasites, helminths, and protozoa challenge health and welfare of pigs and deteriorate the sustainability of swine farms leading to monetary losses. A multicentric survey was conducted for approximately one year. Overall, 1150 fecal samples were collected from eight intensive farms in Greece at regular intervals and examined by flotation and Ziehl-Neelsen techniques. Age, season, and time of last recorded antiparasitic treatment were assessed as possible risk factors using binary regression models. The overall prevalence of intestinal parasitism in pigs was 44.7%. The most frequently detected parasites in the studied population were the protozoa Balantidium coli (37.8%), followed by Entamoeba spp. (8.3%), Cystoisospora suis (6.0%), and the nematodes Ascaris suum (3.7%), Trichuris suis (2.5%), and Oesophagostomum spp. (1.4%). Distribution of intestinal parasites in different age groups was as expected. In autumn, the prevalence of Balantidium coli infection enhanced whereas the prevalence of Entamoeba spp. and Cystoisospora suis infections increased in spring. Time of last recorded antiparasitic treatment influenced Balantidium coli and Trichuris suis infection levels. Our results demonstrated that swine intestinal parasitism in intensive farms of Greece seems to be relatively common and highlighted the importance of proper laboratory examinations, as well as the need for tailored made control programs.
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Prevalence of Poultry Coccidiosis and Associated Risk Factors in Intensive Farming System of Gondar Town, Ethiopia. Vet Med Int 2019; 2019:5748690. [PMID: 32089814 PMCID: PMC7012234 DOI: 10.1155/2019/5748690] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/29/2019] [Accepted: 11/13/2019] [Indexed: 11/18/2022] Open
Abstract
A cross-sectional study was conducted from November 2018 to April 2019 in Gondar town, Ethiopia, with the objectives to determine the prevalence of coccidiosis and to assess the associated risk factors. The floatation technique was used for isolation of coccidian oocysts obtained from 384 fecal samples of chicken, and the prevalence revealed was 42.2%. The result showed 43.6% of male and 41.2% female chickens found infected with Eimeria. From the examined chickens, higher degree of infection was observed in the younger age group (51.0%) than adult chickens (36.7%). The difference was statistically significant (p < 0.05). The study showed relatively higher prevalence in poor body condition chickens (72.6%) than medium (36.1%) and good body condition (30.5%) with statistically significant difference (p < 0.05). The result also showed higher prevalence of coccidiosis in the floor system (50.4%) than in the cage system (19.0%), and the difference was statistically significant (p < 0.05). The prevalence based on the management system was 63.7%, 39.4%, and 29.3% in poor, medium, and good management, respectively. Significant difference was seen in the prevalence of poultry coccidiosis, between poorly and properly managed chickens (p < 0.05). In addition, the study reported 46.1%, 36.7%, and 26.3% prevalence in Bovan Brown, White Leg Horn, and Rhode Red Island chicken breeds, respectively. Coccidiosis is a major problem in the farm with inadequate hygienic measures and factors such as age, breed, body conditions, and biosecurity which are the most common factors that contribute for the occurrence of coccidiosis. Therefore, appropriate control strategies should be designed considering important risk factors such as, breed, age, management system, and housing system. Especially, focus should be given to biosecurity practices in the prevention and control of coccidiosis, and in addition, further studies are needed to be conducted to identify the prevalent Eimeria species for strategic control.
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Matsche MA, Blazer VS, Mazik PM. Seasonal development of the coccidian parasite Goussia bayae and hepatobiliary histopathology in white perch Morone americana from Chesapeake Bay. DISEASES OF AQUATIC ORGANISMS 2019; 134:113-135. [PMID: 31120039 DOI: 10.3354/dao03353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The coccidium Goussia bayae infects the gallbladder and bile ducts of white perch Morone americana from Chesapeake Bay, USA. Seasonal changes in coccidian infections were analyzed from bile specimens of 1588 fish from the Choptank River during 2016-2018 using wet mount preparations with a Sedgwick-Rafter counting chamber. Histopathology of the gallbladder and liver was analyzed from a subset (n = 480) of these fish. Maximum parasite prevalence (100%) and intensities in the gallbladder occurred during the fish spawning season in March and April. Asynchronous coccidian development and prevalence of infections in fish increased gradually during autumn and winter, but coccidian intensity increased sharply 2-4 wk prior to the onset of fish spawning activity and decreased after spawning activity concluded. Sporulation was internal, and the gallbladder was the primary reservoir for oocysts. Two previously undescribed species of coccidia were observed in the intestine. Lesions in the gallbladder were rare and included cholecystitis and epithelial necrosis. Intrahepatic bile duct lesions were more common and included distension, cholangitis, epithelial erosion and necrosis, cholestasis, hyperplasia, and neoplasia. Cholangitis and necrosis of intrahepatic bile ducts were significantly associated with coccidial infections, while plasmodia of a myxosporean (spore morphology consistent with the genera Myxidium and Zschokella) were significantly associated with bile duct hyperplasia. Biliary neoplasia included cholangiomas (5% prevalence) and cholangiocarcinomas (1% prevalence). No association was detected between G. bayae and biliary neoplasms, but an association may exist between these lesions and the myxosporean plasmodia.
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Affiliation(s)
- Mark A Matsche
- Cooperative Oxford Laboratory, Oxford, Maryland 21654, USA
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20
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Rashid M, Akbar H, Bakhsh A, Rashid MI, Hassan MA, Ullah R, Hussain T, Manzoor S, Yin H. Assessing the prevalence and economic significance of coccidiosis individually and in combination with concurrent infections in Pakistani commercial poultry farms. Poult Sci 2019; 98:1167-1175. [PMID: 30476223 DOI: 10.3382/ps/pey522] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 10/25/2018] [Indexed: 11/20/2022] Open
Abstract
Coccidiosis is one of the most economically important diseases of the poultry, around the globe. In order to assess seasonal and age-wise prevalence of coccidiosis individually and with concurrent infections, this study was conducted on commercial poultry farms in and around Multan division, province of Punjab, Pakistan. A total of 28,126 boilers, 4,052 layers and 7,699 golden bird samples, provided by regional farmers and consultants, were examined by microscopy for the diagnosis of coccidiosis. Based on postmortem lesions, several infections including coccidiosis, viral, and miscellaneous diseases were catalogued, whereas samples were cultured to identify concurrent bacterial diseases. Cumulative analysis of this large set of samples revealed a prevalence of 14.16, 11.01, and 19.57% in broiler, layer and golden birds, respectively. Ascaridia galli (A. galli) showed a higher prevalence in layer (2.47%) compared to golden (0.21%) birds (P < 0.01). Amongst all concurrent infections investigated, bacterial infections were identified in highest percentage of samples (59.24%; P < 0.05). The age-wise and season-wise prevalence of coccidiosis and A. galli was found to be significant (P < 0.05). During the study period, an estimated of 10.69 (coccidiosis) and 0.29 (A. galli) million poultry birds were treated or provided prophylaxis and supportive therapy at Pakistani commercial poultry farms. Depending upon the prevailing market conditions, the total economic losses (treatment, prophylaxis, and supportive therapy) from coccidiosis and A. galli were estimated to be US $45,405.00 and 2,638.50, respectively, while production (weight and eggs) losses for broiler (US$ 2,750,779.00), layer and golden, young (US$ 13,974.98 and 50,228.76) and adult (US$ 104.74 and 203.77) were estimated. Unit loss of coccidiosis with concurrent diseases and intestinal worm was estimated to be US$ 0.005 and 0.01, respectively. These results highlight the potential impact of coccidiosis individually and with concurrent infections on the poultry productivity and will inform farmers, policy makers, and other governmental and non-governmental stakeholders on the use of control and management measures in containing these infections.
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Affiliation(s)
- Muhammad Rashid
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, People's Republic of China
| | - Haroon Akbar
- Department of Parasitology, University of Veterinary and Animal Sciences, Lahore 54200, Pakistan
| | - Amir Bakhsh
- Livestock and Dairy Development Department, Punjab, Pakistan
| | - Muhammad Imran Rashid
- Department of Parasitology, University of Veterinary and Animal Sciences, Lahore 54200, Pakistan
| | - Muhammad Adeel Hassan
- Department of Parasitology, Cholistan University of Veterinary and Animal Sciences Bahawalpur 63100, Pakistan
| | - Rahmat Ullah
- Livestock and Dairy Development Department, Punjab, Pakistan
| | - Tahir Hussain
- Livestock and Dairy Development Department, Punjab, Pakistan
| | - Sohail Manzoor
- Livestock and Dairy Development Department, Punjab, Pakistan
| | - Hong Yin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu 730046, People's Republic of China
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21
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Liu J, Liu L, Li L, Tian D, Li W, Xu L, Yan R, Li X, Song X. Protective immunity induced by Eimeria common antigen 14-3-3 against Eimeria tenella, Eimeria acervulina and Eimeria maxima. BMC Vet Res 2018; 14:337. [PMID: 30419898 PMCID: PMC6233286 DOI: 10.1186/s12917-018-1665-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 10/23/2018] [Indexed: 12/01/2022] Open
Abstract
Background Avian coccidiosis is often caused by co-infection with several species of Eimeria worldwide. Developing a multivalent vaccine with an antigen common to multiple Eimeria species is a promising strategy for controlling clinical common co-infection of Eimeria. In the previous study, 14–3-3 was identified as one of the immunogenic common antigen in E. tenella, E. acervulina and E. maxima. The aim of the present study was to evaluate the immunogenicity and protective efficacy of Ea14–3-3 in the form of DNA vaccine against infection with three species of Eimeria both individually and simultaneously. Results After vaccination with pVAX-Ea14–3-3, the Ea14–3-3 gene was transcribed and expressed in the injected muscles. Vaccination with pVAX-Ea14–3-3 significantly increased the proportion of CD4+ and CD8+ T lymphocytes and produced a strong IgY response in immunized chickens. Similarly, pVAX-Ea14–3-3 stimulated the chicken’s splenocytes to produce high levels of Th1-type (IFN-γ, IL-2) and Th2-type (IL-4) cytokines. The vaccine-induced immune response was responsible to increase weight gain, decreased the oocyst output, and alleviated enteric lesions significantly in immunized chickens as compared to control group, in addition to induce moderate anti-coccidial index (ACI). Conclusion These results indicate that Ea14–3-3 is highly immunogenic and capable to induce significant immune responses. Furthermore, Ea14–3-3 antigen can provide effective protection against infection with Eimeria tenella, Eimeria acervulina, Eimeria maxima both individually and in combination with three Eimeria species. Significant outcomes of our study provide an effective candidate antigen for developing a multivalent Eimeria vaccine against mixed infection with various Eimeria species under natural conditions. Electronic supplementary material The online version of this article (10.1186/s12917-018-1665-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jianhua Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Lianrui Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Lingjuan Li
- Henan Muxiang Veterinary Pharmaceutical Co., ltd, Zhengzhou, 450000, People's Republic of China
| | - Di Tian
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Wenyu Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Lixin Xu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Ruofeng Yan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xiangrui Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xiaokai Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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Chicken Coccidiosis in Central Java, Indonesia: A Recent Update. Vet Med Int 2018; 2018:8515812. [PMID: 29593858 PMCID: PMC5822861 DOI: 10.1155/2018/8515812] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/29/2017] [Accepted: 01/11/2018] [Indexed: 11/18/2022] Open
Abstract
Avian coccidiosis is a huge problem worldwide. Heavily infected animals that show severe clinical signs and coccidiostat resistance are causing important economic losses. The present study aimed to update the recent cases of coccidiosis in Central Java, Indonesia, and to show the importance of the disease in the region. A total of 699 samples were obtained from different chicken breed. Different Eimeria species were detected in 175 individuals (25.04%). Three different groups of chicken breed were considered: local chicken (autochthonous chickens of Sentul and Jawa), commercial broiler, and layer. Broiler chickens showed the highest prevalence of infection (34%), followed by layer (26.26%) and local chickens (10.45%). Mild to severe clinical signs of avian coccidiosis were observed in 42% of the infected animals, while 58% of the infected animals showed no clinical signs other than low feed conversion rates. Seven different Eimeria species were identified: E. tenella was the most prevalent (43.3%), followed by E. maxima (26.3%), E. necatrix (15.7%), E. acervulina (8%), E. praecox (3.1%), E. mitis (2.2%), and E. brunetti (1.3%). Coinfections with several Eimeria species were diagnosed. With this study we found massive usage of coccidiostat in the region even though its usage cannot guarantee coccidiosis-free chicken production.
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Awais MM, Akhtar M, Anwar MI, Khaliq K. Evaluation of Saccharum officinarum L. bagasse-derived polysaccharides as native immunomodulatory and anticoccidial agents in broilers. Vet Parasitol 2018; 249:74-81. [DOI: 10.1016/j.vetpar.2017.11.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 11/24/2017] [Accepted: 11/25/2017] [Indexed: 10/18/2022]
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Investigations on the Occurrence and Associated Risk Factors of Avian Coccidiosis in Osun State, Southwestern Nigeria. J Parasitol Res 2017; 2017:9264191. [PMID: 29138693 PMCID: PMC5613681 DOI: 10.1155/2017/9264191] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/29/2017] [Accepted: 07/18/2017] [Indexed: 11/18/2022] Open
Abstract
Avian coccidiosis is one of the most important diseases of poultry and it is responsible for a large number of poultry mortalities worldwide. This study was carried out to investigate the occurrence and associated risk factors of avian coccidiosis in Osun State, Nigeria. Fecal samples were collected and examined from 5,544 avian species that were brought for treatment at the state veterinary hospitals over a 10-year period. Parameters such as age, sex, season, and species of birds were determined. Also, the months of the year were taken into consideration. Overall prevalence of 41.3% was recorded. The year specific rate for avian coccidiosis was highest in 2007 (97.9%) and lowest in 2006 (0.4%), while the month-specific rate was highest in November (85.7%) and lowest in July 2006 (13.3%). There was a significantly (P < 0.05) higher prevalence in young birds compared to adults, in males compared to females, and during the wet season compared to the dry season. Broilers (99.8%) and cockerels (81.0%) were the bird types with the highest prevalence rate. The high prevalence of avian coccidiosis in the study area shows that the disease is endemic and there is need to embark on a radical preventive measure to curtail the disease.
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Chengat Prakashbabu B, Thenmozhi V, Limon G, Kundu K, Kumar S, Garg R, Clark EL, Srinivasa Rao ASR, Raj DG, Raman M, Banerjee PS, Tomley FM, Guitian J, Blake DP. Eimeria species occurrence varies between geographic regions and poultry production systems and may influence parasite genetic diversity. Vet Parasitol 2016; 233:62-72. [PMID: 28043390 PMCID: PMC5239766 DOI: 10.1016/j.vetpar.2016.12.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/24/2016] [Accepted: 12/03/2016] [Indexed: 11/26/2022]
Abstract
Multivariate analysis revealed comparable poultry clusters in north and south India. Eimeria species occurrence varied between system clusters. E. tenella occurrence across systems may underpin region-specific genetic diversity. E. necatrix was found to be more common in north than south India.
Coccidiosis is one of the biggest challenges faced by the global poultry industry. Recent studies have highlighted the ubiquitous distribution of all Eimeria species which can cause this disease in chickens, but intriguingly revealed a regional divide in genetic diversity and population structure for at least one species, Eimeria tenella. The drivers associated with such distinct geographic variation are unclear, but may impact on the occurrence and extent of resistance to anticoccidial drugs and future subunit vaccines. India is one of the largest poultry producers in the world and includes a transition between E. tenella populations defined by high and low genetic diversity. The aim of this study was to identify risk factors associated with the prevalence of Eimeria species defined by high and low pathogenicity in northern and southern states of India, and seek to understand factors which vary between the regions as possible drivers for differential genetic variation. Faecal samples and data relating to farm characteristics and management were collected from 107 farms from northern India and 133 farms from southern India. Faecal samples were analysed using microscopy and PCR to identify Eimeria occurrence. Multiple correspondence analysis was applied to transform correlated putative risk factors into a smaller number of synthetic uncorrelated factors. Hierarchical cluster analysis was used to identify poultry farm typologies, revealing three distinct clusters in the studied regions. The association between clusters and presence of Eimeria species was assessed by logistic regression. The study found that large-scale broiler farms in the north were at greatest risk of harbouring any Eimeria species and a larger proportion of such farms were positive for E. necatrix, the most pathogenic species. Comparison revealed a more even distribution for E. tenella across production systems in south India, but with a lower overall occurrence. Such a polarised region- and system-specific distribution may contribute to the different levels of genetic diversity observed previously in India and may influence parasite population structure across much of Asia and Africa. The findings of the study can be used to prioritise target farms to launch and optimise appropriate anticoccidial strategies for long-term control.
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Affiliation(s)
- B Chengat Prakashbabu
- Department of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - V Thenmozhi
- Department of Veterinary Parasitology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, India
| | - G Limon
- Department of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - K Kundu
- Division of Parasitology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - S Kumar
- Division of Parasitology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - R Garg
- Division of Parasitology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - E L Clark
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | | | - D G Raj
- Department of Animal Biotechnology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, India
| | - M Raman
- Department of Veterinary Parasitology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, India
| | - P S Banerjee
- Division of Parasitology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - F M Tomley
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - J Guitian
- Department of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - D P Blake
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms, Hertfordshire, UK.
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Pegg E, Doyle K, Clark EL, Jatau ID, Tomley FM, Blake DP. Application of a new PCR-RFLP panel suggests a restricted population structure for Eimeria tenella in UK and Irish chickens. Vet Parasitol 2016; 229:60-67. [PMID: 27809980 PMCID: PMC5108357 DOI: 10.1016/j.vetpar.2016.09.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/18/2016] [Accepted: 09/24/2016] [Indexed: 12/03/2022]
Abstract
Eimeria tenella populations differ in genetic diversity between regions. PCR-RFLP provides a robust tool to assess genetic diversity for Eimeria tenella. Cost-effective genotyping can support expansion of population genetics for Eimeria.
Eimeria species cause coccidiosis, most notably in chickens where the global cost exceeds US$3 billion every year. Understanding variation in Eimeria population structure and genetic diversity contributes valuable information that can be used to minimise the impact of drug resistance and develop new, cost-effective anticoccidial vaccines. Little knowledge is currently available on the epidemiology of Eimeria species and strains in different regions, or under different chicken production systems. Recently, 244 Eimeria tenella isolates collected from countries in Africa and Asia were genotyped using a Sequenom single nucleotide polymorphism (SNP) tool, revealing significant variation in haplotype diversity and population structure, with a marked North/South regional divide. To expand studies on genetic polymorphism to larger numbers of E. tenella populations in other geographic regions a cheaper and more accessible technique, such as polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), is desirable. We have converted a subset of SNP markers for use as PCR-RFLPs and re-analysed the original 244 isolates with the PCR-RFLPs to assess their utility. In addition, application of the PCR-RFLP to E. tenella samples collected from UK and Irish broiler chickens revealed a tightly restricted haplotype diversity. Just two of the PCR-RFLPs accounted for all of the polymorphism detected in the UK and Irish parasite populations, but analysis of the full dataset revealed different informative markers in different regions, supporting validity of the PCR-RFLP panel. The tools described here provide an accessible and cost-effective method that can be used to enhance understanding of E. tenella genetic diversity and population structure.
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Affiliation(s)
- Elaine Pegg
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, North Mymms, AL9 7TA, UK
| | - Kate Doyle
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, North Mymms, AL9 7TA, UK
| | - Emily L Clark
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, North Mymms, AL9 7TA, UK
| | - Isa D Jatau
- Department of Parasitology and Entomology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Fiona M Tomley
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, North Mymms, AL9 7TA, UK
| | - Damer P Blake
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, North Mymms, AL9 7TA, UK.
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Clark EL, Tomley FM, Blake DP. Are Eimeria Genetically Diverse, and Does It Matter? Trends Parasitol 2016; 33:231-241. [PMID: 27593338 DOI: 10.1016/j.pt.2016.08.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/05/2016] [Accepted: 08/09/2016] [Indexed: 10/21/2022]
Abstract
Eimeria pose a risk to all livestock species as a cause of coccidiosis, reducing productivity and compromising animal welfare. Pressure to reduce drug use in the food chain makes the development of cost-effective vaccines against Eimeria essential. For novel vaccines to be successful, understanding genetic and antigenic diversity in field populations is key. Eimeria species that infect chickens are most significant, with Eimeria tenella among the best studied and most economically important. Genome-wide single nucleotide polymorphism (SNP)-based haplotyping has been used to determine population structure, genotype distribution, and potential for cross-fertilization between E. tenella strains. Here, we discuss recent developments in our understanding of diversity for Eimeria in relation to its specialized life cycle, distribution across the globe, and the challenges posed to vaccine development.
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Affiliation(s)
- Emily L Clark
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms, Hertfordshire, UK; Current address: The Roslin Institute, The University of Edinburgh, Easter Bush, Midlothian, UK
| | - Fiona M Tomley
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - Damer P Blake
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms, Hertfordshire, UK.
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Lawal JR, Jajere SM, Ibrahim UI, Geidam YA, Gulani IA, Musa G, Ibekwe BU. Prevalence of coccidiosis among village and exotic breed of chickens in Maiduguri, Nigeria. Vet World 2016; 9:653-9. [PMID: 27397991 PMCID: PMC4937059 DOI: 10.14202/vetworld.2016.653-659] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 05/16/2016] [Indexed: 11/25/2022] Open
Abstract
Aim: Coccidiosis is an important enteric parasitic disease of poultry associated with significant economic losses to poultry farmers worldwide. This survey was conducted from June 2014 through July 2015 with the main goal of investigating the prevalence and associated risk factors of coccidiosis among village and exotic breeds of chickens in Maiduguri, Northeastern Nigeria. Materials and Methods: A total of 600 fecal samples from live and slaughtered birds comprising 284 young, 141, growers and 175 adult birds; 379 male and 221 female birds; 450 exotic and 150 local breeds of birds were randomly collected either as bird’s fresh droppings or cutting open an eviscerated intestine of slaughtered birds, while noting their age, sex, and breeds. Samples were analyzed using standard parasitological methods and techniques. Results: An overall prevalence rate of 31.8% (95% confidence interval: 28.07-35.52) was obtained. Higher prevalence rates were recorded in growing birds 58.9% (50.78-67.02), female birds 35.3% (29.00-41.60), exotic birds 42.4% (37.83-46.97), and broiler birds 68.7% (61.28-76.12). Similarly, higher infection rates were also observed among birds sampled from Mairi ward 66.7% (56.03-77.37), intensive management system 46.5% (41.61-51.39), and constructed local cages 54.0% (46.02-61.98). The difference in prevalence of coccidiosis among age groups, breeds, among exotic breeds, sampling sites, husbandry management systems, and litter management systems was statistically significant (<0.0001). However, no significant difference (p>0.05) of infection rates was observed in sex. Conclusion: Coccidiosis is endemic in both commercial and backyard poultry farms in Maiduguri due to poor management practices encouraging Eimeria oocysts build-up. It is therefore, recommended that poultry farmers should practice strict biosecurity measures on their farms, creating awareness on the prevalence of coccidiosis, routine vaccination against coccidiosis and educating poultry farmers on the need for maintaining good hygienic standards and good flock health management.
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Affiliation(s)
- Jallailudeen Rabana Lawal
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| | - Saleh Mohammed Jajere
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| | - Umar Isa Ibrahim
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| | - Yaqub Ahmed Geidam
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| | - Isa Adamu Gulani
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| | - Gambo Musa
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| | - Benjamin U Ibekwe
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
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Shamim A, Ul Hassan M, Yousaf A, Iqbal MF, Zafar MA, Siddique RM, Abubakar M. Occurrence and identification of Emeria species in broiler rearing under traditional system. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2015; 57:41. [PMID: 26629361 PMCID: PMC4665757 DOI: 10.1186/s40781-015-0074-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 11/16/2015] [Indexed: 11/30/2022]
Abstract
Background The present study was intended to determine the prevalence and identification of species involved causing coccidiosis in broilers rearing under traditional farming system in Mirpur, Azad Kashmir, Pakistan. For the current study, a convenient sampling technique was carried out. A total of 7814 broilers (aged 1 to 6 weeks) were submitted to the Disease Diagnostic Laboratory of Livestock and Animal husbandry Department Mirpur, Azad Kashmir. Results From the total screened, 750 were found positive for coccidiosis representing an overall prevalence of 9.59 %. Age-wise highest prevalence (10.88 %) recorded in the middle age birds (0 to 3 week old) were found more susceptible to infection than those aged above 3 weeks. Higher prevalence (12.49 %) of coccidiosis in broilers was observed in spring as compared with 6.60 % in summer season. In this study two main coccidiosis causing species, Emeria tenella and Emeria maxima were identified on the basis of their morphological feature and habitat (caeca and intestine), However, E. tenella was dominant compared to E. maxima. Conclusion The study provides an insight to the occurrence of Emeria species which must be taken into consideration when rearing the broilers.
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Affiliation(s)
- Asim Shamim
- Faculty of Veterinary and Animal Sciences, The University of Poonch, Rawalakot, Azad Kashmir, Pakistan
| | - Murtaz Ul Hassan
- Faculty of Veterinary Science, Arid Agriculture University, Rawalpindi, Pakistan
| | - Arfan Yousaf
- Faculty of Veterinary Science, Arid Agriculture University, Rawalpindi, Pakistan
| | | | - Muhammad Arif Zafar
- Faculty of Veterinary Science, Arid Agriculture University, Rawalpindi, Pakistan
| | - Rao Muhammad Siddique
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
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Moraes JC, França M, Sartor AA, Bellato V, de Moura AB, Magalhães MDLB, de Souza AP, Miletti LC. Prevalence ofEimeriaspp. in Broilers by Multiplex PCR in the Southern Region of Brazil on Two Hundred and Fifty Farms. Avian Dis 2015; 59:277-81. [DOI: 10.1637/10989-112014-reg] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Akhtar M, Awais MM, Anwar MI, Ehtisham-ul-Haque S, Nasir A, Saleemi MK, Ashraf K. The effect of infection with mixed Eimeria species on hematology and immune responses following Newcastle disease and infectious bursal disease booster vaccination in broilers. Vet Q 2015; 35:21-6. [PMID: 25423182 DOI: 10.1080/01652176.2014.991048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Coccidiosis is an important parasitic disease of chickens, causing high mortality and morbidity. This morbidity is believed to be correlated with altered population dynamics of blood cells and immunocompromisation. OBJECTIVES This study investigated the effects of mixed Eimeria species (viz., tenella, maxima, acervulina and necatrix) infection on hematology and immune responses following Newcastle disease (ND) and infectious bursal disease (IBD) booster vaccination in broilers. ANIMALS AND METHODS One-day-old broiler chicks (Hubbard; n = 200) were divided into two equal groups A and B. On day 16, group A was infected orally with Eimeria species (7 × 10(4) sporulated oocysts), whereas group B served as control. Both groups were analyzed for hematological parameters on post-infection days 6-8. Sera from both groups were analyzed for antibody titers against ND and IBD vaccines. On day 8 post-infection, lymphoid organs were also examined. RESULTS Significantly lower (P < 0.05) levels of plasma proteins, globular volume, hemoglobin concentration, packed cell volume, total erythrocytes, mean corpuscular volume and mean corpuscular hemoglobin concentration were found in infected chickens compared with non-infected control chickens. In addition, the infected group exhibited significantly increased (P < 0.05) numbers of different leukocytes. Infected chickens also showed significantly lower antibody titers against ND and IBD with decreased relative organ weights of all lymphoid organs except spleen. CONCLUSION AND RECOMMENDATIONS Mixed species of Eimeria adversely affected the hematology and immune efficiency of broilers. Thus, inexpensive immune potentiators and hemotonics along with appropriate anti-coccidial medications are suggested to avoid the complications and subsequent economic losses.
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Affiliation(s)
- Masood Akhtar
- a Department of Pathobiology, Faculty of Veterinary Sciences , Bahauddin Zakariya University , Multan , Pakistan
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Price K, Guerin M, Barta J. Success and failure: The role of relative humidity levels and environmental management in liveEimeria vaccination of cage-reared replacement layer pullets. J APPL POULTRY RES 2014. [DOI: 10.3382/japr.2014-00989] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Györke A, Pop L, Cozma V. Prevalence and distribution of Eimeria species in broiler chicken farms of different capacities. ACTA ACUST UNITED AC 2013; 20:50. [PMID: 24309007 PMCID: PMC3852269 DOI: 10.1051/parasite/2013052] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 11/28/2013] [Indexed: 11/24/2022]
Abstract
We conducted a survey in broiler farms from Romania to establish prevalence and distribution of Eimeria species using single PCR assay. We found Eimeria spp. in 21 (91%) out of 23 flocks, and in 11 (92%) out of 12 farms. Four species of Eimeria were identified: E. acervulina (21/23; 91%), E. tenella (14/23; 61%), E. maxima (5/23; 22%) and E. praecox (3/23; 13%). Infection with a single species (E. acervulina) was detected in 6 (26%) infected flocks originated from large farms. Mixed infections were found in 15 (65%) flocks and the most prevalent combination was E. acervulina + E. tenella (8/23; 35%). Four flocks (17%) harboured mixed infection with E. acervulina + E. tenella + E. maxima. E. acervulina was significantly more prevalent in flocks that received ionophores as anticoccidial feed additives.
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Affiliation(s)
- Adriana Györke
- Parasitology and Parasitic Diseases Department, Faculty of Veterinary Medicine, University of Agricultural Science and Veterinary Medicine Cluj Napoca, 3-5 Calea Mănăştur, 400372 Cluj-Napoca, Romania
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Luu L, Bettridge J, Christley RM, Melese K, Blake D, Dessie T, Wigley P, Desta TT, Hanotte O, Kaiser P, Terfa ZG, Collins M, Lynch SE. Prevalence and molecular characterisation of Eimeria species in Ethiopian village chickens. BMC Vet Res 2013; 9:208. [PMID: 24125076 PMCID: PMC3852846 DOI: 10.1186/1746-6148-9-208] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 10/10/2013] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Coccidiosis, caused by species of the apicomplexan parasite Eimeria, is a major disease of chickens. Eimeria species are present world-wide, and are ubiquitous under intensive farming methods. However, prevalence of Eimeria species is not uniform across production systems. In developing countries such as Ethiopia, a high proportion of chicken production occurs on rural smallholdings (i.e. 'village chicken production') where infectious diseases constrain productivity and surveillance is low. Coccidiosis is reported to be prevalent in these areas. However, a reliance on oocyst morphology to determine the infecting species may impede accurate diagnosis. Here, we used cross-sectional and longitudinal studies to investigate the prevalence of Eimeria oocyst shedding at two rural sites in the Ethiopian highlands. RESULTS Faecal samples were collected from 767 randomly selected chickens in May or October 2011. In addition, 110 chickens were sampled in both May and October. Eimeria oocysts were detected microscopically in 427 (56%, 95% confidence interval (95% CI) 52-59%) of the 767 faecal samples tested. Moderate clustering of positive birds was detected within households, perhaps suggesting common risk factors or exposure pathways. Seven species of Eimeria were detected by real time PCR in a subset of samples further analysed, with the prevalence of some species varying by region. Co-infections were common; 64% (23/36, 95% CI 46-79%) of positive samples contained more than one Eimeria spp. Despite frequent infection and co-infection overt clinical disease was not reported. Eimeria oocysts were detected significantly more frequently in October (248/384, 65%, 95% CI 60-69%), following the main rainy season, compared to May (179/383, 47%, 95% CI 42-52%, p < 0.001). Eimeria oocyst positivity in May did not significantly affect the likelihood of detecting Eimeria oocyst five months later perhaps suggesting infection with different species or immunologically distinct strains. CONCLUSIONS Eimeria spp oocysts may be frequently detected in faecal samples from village chickens in Ethiopia. Co-infection with multiple Eimeria spp was common and almost half of Eimeria positive birds had at least one highly pathogenic species detected. Despite this, all sampled birds were free of overt disease. Although there was no evidence of a difference in the prevalence of oocysts in faecal samples between study regions, there was evidence of variation in the prevalence of some species, perhaps suggesting regional differences in exposure to risk factors associated with the birds, their management and/or location-specific environmental and ecological factors.
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Affiliation(s)
- Lisa Luu
- Institute of Infection and Global Health, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom
| | - Judy Bettridge
- Institute of Infection and Global Health, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom
- International Livestock Research Institute, Addis, Ababa, Ethiopia
| | - Robert M Christley
- Institute of Infection and Global Health, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom
| | - Kasech Melese
- Debre Zeit Agricultural Research Centre, Ethiopian Institute of Agricultural Research, Debre Zeit, Ethiopia
| | - Damer Blake
- Department of Pathology and Pathogen Biology, Royal Veterinary College, North Mymms AL9 7TA, UK
| | - Tadelle Dessie
- International Livestock Research Institute, Addis, Ababa, Ethiopia
| | - Paul Wigley
- Institute of Infection and Global Health, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom
| | - Takele T Desta
- International Livestock Research Institute, Addis, Ababa, Ethiopia
- Ecology and Evolution, School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Olivier Hanotte
- Ecology and Evolution, School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Pete Kaiser
- The Roslin Institute and Royal (Dick) School of Veterinary Science, University of Edinburgh, Midlothian EH25 9RG, UK
| | - Zelalem G Terfa
- Management School, University of Liverpool, Liverpool L69 7ZH, United Kingdom
| | - Marisol Collins
- Institute of Infection and Global Health, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom
| | - Stacey E Lynch
- Institute of Infection and Global Health, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom
- International Livestock Research Institute, Addis, Ababa, Ethiopia
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Sharma S, Azmi S, Iqbal A, Nasirudullah N, Mushtaq I. Pathomorphological alterations associated with chicken coccidiosis in Jammu division of India. J Parasit Dis 2013; 39:147-51. [PMID: 26063989 DOI: 10.1007/s12639-013-0302-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 04/19/2013] [Indexed: 11/29/2022] Open
Abstract
Pathomorphological alterations of chicken coccidiosis in Jammu division were undertaken in both organized and backyard chickens during the year 2010-2011. A total 240 intestines were examined from both organized farms and backyard chickens for histopathological studies. Out of 240 samples processed, 48 samples were found to be positive for coccidiosis with a prevalence of 20 %. Coccidiosis was initially diagnosed on the basis of faecal examination and confirmed by the presence of sporulated oocysts and pathomorphological alterations in intestines. Eimeria species were identified by morphometry. Five Eimeria species identified were Eimeria tenella, E. necatrix, E. maxima, E. acervulina and E. mitis. Histopathological lesions revealed loss of epithelial tissue, congestion of blood vessels which indicate disruption followed by haemorrhage, severe muscular oedema and necrosis of submucosa of intestine and caecum. There was loss of intestinal villi, disruption of caecal mucosa and clusters of oocysts seen. There was massive infiltration by heterophils and mononuclear cells. Several merozoites, schizonts and microgametes were found in the epithelial cells.
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Affiliation(s)
- Sourabh Sharma
- Division of Veterinary Pathology, SKUAST-Jammu, R.S. Pura, Jammu, 181102 India
| | - Shagufta Azmi
- Division of Veterinary Pathology, SKUAST-Jammu, R.S. Pura, Jammu, 181102 India
| | - Asif Iqbal
- Division of Veterinary Epidemiology & Preventive Medicine, SKUAST-Jammu, Jammu, India
| | - Nawab Nasirudullah
- Division of Veterinary Pathology, SKUAST-Jammu, R.S. Pura, Jammu, 181102 India
| | - Iram Mushtaq
- Disease Investigation Laboratory Nowshera, Srinagar, India
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