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Wang Y, Jin T, Zhang N, Li J, Wang Y, Kulyar MFEA, Han Z, Li Y. Effect of stocking density and age on physiological performance and dynamic gut bacterial and fungal communities in Langya hens. Microb Cell Fact 2021; 20:218. [PMID: 34863176 PMCID: PMC8642922 DOI: 10.1186/s12934-021-01707-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/10/2021] [Indexed: 01/08/2023] Open
Abstract
Background The characterization of colonization and dynamic changes related to gut microorganisms might be vital, as it presents an opportunity to quantify the co-variation between stocking densities and gut microbiome of dynamic distribution. The objective of this study was to determine the stocking density on physiological performance and dynamic distribution of gut microbiome (including bacterial and fungal communities) of Langya laying hens in the two development stages. Methods A randomized design with 2 × 3 factorial controls consisting of two development stages (24, 43 weeks-old) with three different stocking densities was performed. Three different stocking densities were allocated to a total of 300 11-week-old Langya laying hens (450 cm2/bird, 675 cm2/bird, 900 cm2/bird). Three housing densities were accomplished by raising different chickens per cage with the same floor size. The dependent variables of stocking densities at each sampling point were; growth performance, organs index, egg quality and the changes of dynamic gut bacterial and fungal communities in the cecum. Results Results showed that the stocking density didn’t affect liver index, eggshell thickness, breaking shell strength and egg shape index. Hens from the highest stocking density had the lowest body weight, fallopian tube index, egg weight and yolk colour score. Except for the yolk colour score, the measurement changes caused by age followed the opposite pattern as stocking density. We observed a substantial rise in taxa linked with health threats when stocking density was increased, including Talaromyces, Oscillospiraceae_UCG-002, Oscillospira, and Dielma. The opposite was observed with Bacteroides, Bifidobacterium, Lachnoclostridium, Eisenbergiella, and Kurtzmaniella. Also, most taxa were linked to polymicrobial infection in clinical cases, especially species whose percentage declined as the hens aged, such as Terrisporobacter, Faecalicoccus, Dialister, Cylindrocarpon etc. Whereas Sellimonas, Mitsuokella, Eurotium, Wardomyces and Cephalotheca had the opposite trend. Conclusion We speculated that excessive high density drove the abundance of bacteria and fungi connected with health problems. Where the gut microecology gradually reach a mature and balance status with age. Overall, this study demonstrates gut microbiome ecological processes in Langya layers at various stocking densities and finds possible connections between stocking density, microbiome and production performance. Our study will contribute to new insights associating suitable density patterns and production performance in laying hens by harnessing such a relative microbiome.
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Affiliation(s)
- Yaping Wang
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Taihua Jin
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China
| | - Ningbo Zhang
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China
| | - Jiongkui Li
- Qingdao Ruiyi Precision Medical Inspection Co., Ltd, Qingdao, 266000, China
| | - Yan Wang
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China
| | | | - Zhaoqing Han
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China.
| | - Yongzhu Li
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China.
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Wang Y, Fu Y, He Y, Kulyar MFEA, Iqbal M, Li K, Liu J. Longitudinal Characterization of the Gut Bacterial and Fungal Communities in Yaks. J Fungi (Basel) 2021; 7:jof7070559. [PMID: 34356938 PMCID: PMC8304987 DOI: 10.3390/jof7070559] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/28/2021] [Accepted: 07/08/2021] [Indexed: 12/12/2022] Open
Abstract
Development phases are important in maturing immune systems, intestinal functions, and metabolism for the construction, structure, and diversity of microbiome in the intestine during the entire life. Characterizing the gut microbiota colonization and succession based on age-dependent effects might be crucial if a microbiota-based therapeutic or disease prevention strategy is adopted. The purpose of this study was to reveal the dynamic distribution of intestinal bacterial and fungal communities across all development stages in yaks. Dynamic changes (a substantial difference) in the structure and composition ratio of the microbial community were observed in yaks that matched the natural aging process from juvenile to natural aging. This study included a significant shift in the abundance and proportion of bacterial phyla (Planctomycetes, Firmicutes, Bacteroidetes, Spirochaetes, Tenericutes, Proteobacteria, and Cyanobacteria) and fungal phyla (Chytridiomycota, Mortierellomycota, Neocallimastigomycota, Ascomycota, and Basidiomycota) across all development stages in yaks. As yaks grew older, variation reduced, and diversity increased as compared to young yaks. In addition, the intestine was colonized by a succession of microbiomes that coalesced into a more mature adult, including Ruminococcaceae_UCG-005, Romboutsia, Prevotellaceae_UCG-004, Blautia, Clostridium_sensu_stricto_1, Ruminococcus_1, Ruminiclostridium_5, Rikenellaceae_RC9_gut_group, Alloprevotella, Acetitomaculum, Lachnospiraceae_NK3A20_group, Bacteroides, Treponema_2, Olsenella, Escherichia-Shigella, Candidatus_Saccharimonas, and fungal communities Mortierella, Lomentospora, Orpinomyces, and Saccharomyces. In addition, microorganisms that threaten health, such as Escherichia-Shigella, Mortierella, Lomentospora and Hydrogenoanaerobacterium, Corynebacterium_1, Trichosporon, and Coprinellus, were enriched in young and old yaks, respectively, although all yaks were healthy. The significant shifts in microflora composition and structure might reflect adaptation of gut microbiome, which is associated with physicochemical conditions changes and substrate availability in the gut across all development periods of yaks.
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Affiliation(s)
- Yaping Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China;
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (Y.F.); (Y.H.); (M.F.-e.-A.K.); (M.I.)
| | - Yuhang Fu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (Y.F.); (Y.H.); (M.F.-e.-A.K.); (M.I.)
| | - Yuanyuan He
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (Y.F.); (Y.H.); (M.F.-e.-A.K.); (M.I.)
| | - Muhammad Fakhar-e-Alam Kulyar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (Y.F.); (Y.H.); (M.F.-e.-A.K.); (M.I.)
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (Y.F.); (Y.H.); (M.F.-e.-A.K.); (M.I.)
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Kun Li
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China;
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: (K.L.); (J.L.)
| | - Jiaguo Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China;
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: (K.L.); (J.L.)
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McFadzean H, Schock A, Stubberfield E, Card RM, Thomson J, Rohde J, Murray L, Velo-Rego E, Ainsworth H, Barlow AM, Welchman D. Retrospective analysis of necrotizing typhlitis cases associated with Brachyspira spp. in British rheas. Avian Pathol 2021; 50:1-11. [PMID: 33779433 DOI: 10.1080/03079457.2021.1907305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/19/2021] [Indexed: 10/21/2022]
Abstract
This paper describes a retrospective analysis of necrotizing typhlitis in common rheas (Rhea americana) diagnosed in the United Kingdom by the Animal & Plant Health Agency (APHA). From January 2008 to January 2020, seven cases of spirochaetal typhlitis associated with Brachyspira spp. were identified using the Veterinary Investigation Diagnosis Analysis database. Gross examination was combined with selective anaerobic culture, polymerase chain reaction, and histopathology to diagnose typhlitis associated with spirochaetal infection. Whole-genome sequencing was subsequently utilized on archived isolates from six of the seven submissions, overcoming issues with traditional testing methods and yielded gains in the identification of Brachyspira to species level. Brachyspira hyodysenteriae, an organism traditionally associated with typhlitis in rheas, was isolated in three sequenced submissions. One of these also demonstrated co-infection with Brachyspira intermedia. Brachyspira suanatina, Brachyspira hampsonii, and Brachyspira alvinipulli were identified by sequencing as single infections in the remaining three animals. This report demonstrates the ability of Brachyspira species other than B. hyodysenteriae to colonize the caeca of rheas presenting with typhlitis. Additionally, the B. alvinipulli isolate harboured a tva(A) gene, indicating higher potential pleuromutilin resistance, which has not previously been described in this Brachyspira species. This study discusses the epidemiology of examined cases and examines the potential role other species may play in these outbreaks.
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Affiliation(s)
| | - Alex Schock
- Animal and Plant Health Agency Lasswade, Midlothian, UK
| | | | | | - Jill Thomson
- SAC Consulting, Veterinary Services, Midlothian, UK
| | - Judith Rohde
- Institute for Microbiology, Department of Infectious Diseases, University of Veterinary Medicine, Foundation, Hannover, Germany
| | - Laura Murray
- Animal and Plant Health Agency Starcross, Devon, UK
| | | | | | - Alex M Barlow
- Animal Health and Veterinary Laboratories Agency Langford, Somerset, UK
| | - David Welchman
- Animal and Plant Health Agency Winchester, Hampshire, UK
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David J H. Distribution and transmission of aetiological agents of swine dysentery. Vet Rec 2019; 182:192-194. [PMID: 30970310 DOI: 10.1136/vr.k571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Hampson David J
- Department of Infectious Diseases and Public Health, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong
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Rohde J, Majzoub-Altweck M, Falkenau A, Hermanns W, Burrough ER, Ritzmann M, Stadler J. Occurrence of dysentery-like diarrhoea associated with Brachyspira suanatina
infection on a German fattening pig farm. Vet Rec 2018; 182:195. [DOI: 10.1136/vr.104705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/24/2017] [Accepted: 12/24/2017] [Indexed: 11/04/2022]
Affiliation(s)
- Judith Rohde
- Institute for Microbiology, University of Veterinary Medicine, Foundation; Hannover Germany
| | - Monir Majzoub-Altweck
- Institute of Veterinary Pathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich; Munich Germany
| | - Almuth Falkenau
- Institute of Veterinary Pathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich; Munich Germany
| | - Walter Hermanns
- Institute of Veterinary Pathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich; Munich Germany
| | - Eric R Burrough
- Department of Veterinary Diagnostic and Production Animal Medicine; College of Veterinary Medicine, Iowa State University; Ames USA
| | - Mathias Ritzmann
- Clinic for Swine, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich; Oberschleissheim Germany
| | - Julia Stadler
- Clinic for Swine, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich; Oberschleissheim Germany
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Mappley LJ, La Ragione RM, Woodward MJ. Brachyspira and its role in avian intestinal spirochaetosis. Vet Microbiol 2013; 168:245-60. [PMID: 24355534 DOI: 10.1016/j.vetmic.2013.11.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 11/17/2013] [Accepted: 11/18/2013] [Indexed: 10/26/2022]
Abstract
The fastidious, anaerobic spirochaete Brachyspira is capable of causing enteric disease in avian, porcine and human hosts, amongst others, with a potential for zoonotic transmission. Avian intestinal spirochaetosis (AIS), the resulting disease from colonisation of the caeca and colon of poultry by Brachyspira leads to production losses, with an estimated annual cost of circa £ 18 million to the commercial layer industry in the United Kingdom. Of seven known and several proposed species of Brachyspira, three are currently considered pathogenic to poultry; B. alvinipulli, B. intermedia and B. pilosicoli. Currently, AIS is primarily prevented by strict biosecurity controls and is treated using antimicrobials, including tiamulin. Other treatment strategies have been explored, including vaccination and probiotics, but such developments have been hindered by a limited understanding of the pathobiology of Brachyspira. A lack of knowledge of the metabolic capabilities and little genomic information for Brachyspira has resulted in a limited understanding of the pathobiology. In addition to an emergence of antibiotic resistance amongst Brachyspira, bans on the prophylactic use of antimicrobials in livestock are driving an urgent requirement for alternative treatment strategies for Brachyspira-related diseases, such as AIS. Advances in the molecular biology and genomics of Brachyspira heralds the potential for the development of tools for genetic manipulation to gain an improved understanding of the pathogenesis of Brachyspira.
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Affiliation(s)
- Luke J Mappley
- Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK; Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire RG6 6AP, UK.
| | - Roberto M La Ragione
- Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK; School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UK
| | - Martin J Woodward
- Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire RG6 6AP, UK
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Mappley LJ, Tchórzewska MA, Nunez A, Woodward MJ, La Ragione RM. Evidence for systemic spread of the potentially zoonotic intestinal spirochaete Brachyspira pilosicoli in experimentally challenged laying chickens. J Med Microbiol 2012; 62:297-302. [PMID: 23161770 DOI: 10.1099/jmm.0.052126-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Brachyspira pilosicoli is a potentially zoonotic anaerobic intestinal spirochaete that is one of several species causing avian intestinal spirochaetosis. The aim of this study was to develop a reproducible model of infection in point-of-lay chickens and compare the virulence of two strains of B. pilosicoli in a model using experimentally challenged laying chickens. Seventeen-week-old commercial laying chickens were experimentally challenged by oral gavage with either B. pilosicoli strain B2904 or CPSp1, following an oral dose of 10 % sodium bicarbonate to neutralize acidity in the crop. Approximately 80 % of the chickens became colonized and exhibited increased faecal moisture content, reduced weight gain and delayed onset of lay. Tissues sampled at post-mortem examination were analysed to produce a quantitative output on the number of spirochaetes present and hence, the extent of colonization. The liver and spleen were colonized, and novel histopathology was observed in these tissues. The infection model we report here has potential use in studies to improve our understanding of the mechanisms by which Brachyspira elicit disease in poultry and in testing novel intervention strategies.
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Affiliation(s)
- Luke J Mappley
- Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire RG6 6AP, UK.,Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
| | - Monika A Tchórzewska
- Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
| | - Alejandro Nunez
- Pathology Unit, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
| | - Martin J Woodward
- Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire RG6 6AP, UK
| | - Roberto M La Ragione
- Faculty of Health and Medical Sciences, University of Surrey, Guilford, Surrey GU2 7XH, UK.,Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
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Mappley LJ, Tchórzewska MA, Nunez A, Woodward MJ, Bramley PM, La Ragione RM. Oral treatment of chickens with Lactobacillus reuteri LM1 reduces Brachyspira pilosicoli-induced pathology. J Med Microbiol 2012; 62:287-296. [PMID: 23161764 DOI: 10.1099/jmm.0.051862-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Avian intestinal spirochaetosis (AIS) results from the colonization of the caeca and colon of poultry by pathogenic Brachyspira, notably Brachyspira pilosicoli. Following the ban on the use of antibiotic growth promoters in the European Union in 2006, the number of cases of AIS has increased, which, alongside emerging antimicrobial resistance in Brachyspira, has driven renewed interest in alternative intervention strategies. Lactobacillus-based probiotics have been shown to protect against infection with common enteric pathogens in livestock. Our previous studies have shown that Lactobacillus reuteri LM1 antagonizes aspects of the pathobiology of Brachyspira in vitro. Here, we showed that L. reuteri LM1 mitigates the clinical symptoms of AIS in chickens experimentally challenged with B. pilosicoli. Two groups of 15 commercial laying hens were challenged experimentally by oral gavage with B. pilosicoli B2904 at 18 weeks of age; one group received unsupplemented drinking water and the other received L. reuteri LM1 in drinking water from 1 week prior to challenge with Brachyspira and thereafter for the duration of the study. This treatment regime was protective. Specifically, B. pilosicoli was detected by culture in fewer birds, bird weights were higher, faecal moisture contents were significantly lower (P<0.05) and egg production as assessed by egg weight and faecal staining score was improved (P<0.05). Also, at post-mortem examination, significantly fewer B. pilosicoli were recovered from treated birds (P<0.05), with only mild-moderate histopathological changes observed. These data suggest that L. reuteri LM1 may be a useful tool in the control of AIS.
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Affiliation(s)
- Luke J Mappley
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, UK.,Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
| | - Monika A Tchórzewska
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, UK.,Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
| | - Alejandro Nunez
- Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire RG6 6AP, UK
| | - Martin J Woodward
- Pathology Unit, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
| | - Peter M Bramley
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, UK
| | - Roberto M La Ragione
- Faculty of Health and Medical Sciences, University of Surrey, Guilford, Surrey GU2 7XH, UK.,Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, Addlestone, Surrey KT15 3NB, UK
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Phenotypic and genetic diversity among intestinal spirochaetes (genus Brachyspira) in free-living wild mallards (Anas platyrhynchos) sampled in southern Sweden. Syst Appl Microbiol 2011; 34:566-75. [DOI: 10.1016/j.syapm.2011.10.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 07/07/2011] [Accepted: 10/03/2011] [Indexed: 11/21/2022]
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Thuma Á, Dán Á, Kaszanyitzky É, Fazekas B, Tóth Á, Glávits R. Experimental inoculation of day-old ducks with Brachyspira pilosicoli and B. alvinipulli. Acta Vet Hung 2011; 59:165-74. [PMID: 21665570 DOI: 10.1556/avet.2011.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Two groups of one-day-old Peking ducklings (Groups I and II, 12 birds/group) were inoculated orally with Brachyspira pilosicoli and two groups with B. alvinipulli (Groups III and IV, 12 birds/group). T-2 toxin was added to the feed of Groups II and IV in a dose of 1 mg/kg of feed. Groups V and VI served as uninfected control groups (ducks of Group VI received T-2 toxin). The body weight gain of the ducks was measured and clinical signs were monitored continuously. The birds were sacrificed and necropsied on days 7, 14, 21, and 28 post infection (PI). The liver, spleen, kidney, thymus, bursa of Fabricius, ileum, caecum and colon were examined histologically. Culturing of Brachyspira spp. and immunohistochemistry were performed from the sampled parts of the intestines as well. No gross pathological or histological lesions that could be associated with B. pilosicoli or B. alvinipulli were detectable in the intestinal mucous membrane including the colonised intestinal glands. Mortality did not occur during the experimental period. Decrease in body weight gain was significant in the T-2-toxin-treated groups, and it was slight (not significant) in the Brachyspira-infected groups. Crust on the beaks, necrosis, crusting and ulceration in the mucous membrane of the oral cavity and on the skin of the feet, atrophy of the thymus and bursa of Fabricius due to the effect of T-2 toxin, accompanied by lymphocyte depletion, were observed. These lesions were most prominent on days 14 and 21 PI but were seen on day 28 PI as well. Immunohistochemical detection and reisolation of B. pilosicoli and B. alvinipulli were successful on days 7, 14, 21 and 28 days from different segments of the intestine of certain birds, but no significant difference was observed in the colonisation rate between the T-2-toxin-treated and the untreated groups.
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Affiliation(s)
- Ákos Thuma
- 1 Veterinary Diagnostic Directorate Central Agricultural Office Tábornok u. 2 H-1149 Budapest Hungary
| | - Ádám Dán
- 1 Veterinary Diagnostic Directorate Central Agricultural Office Tábornok u. 2 H-1149 Budapest Hungary
| | - Éva Kaszanyitzky
- 1 Veterinary Diagnostic Directorate Central Agricultural Office Tábornok u. 2 H-1149 Budapest Hungary
| | - Béla Fazekas
- 1 Veterinary Diagnostic Directorate Central Agricultural Office Tábornok u. 2 H-1149 Budapest Hungary
| | - Ádám Tóth
- 1 Veterinary Diagnostic Directorate Central Agricultural Office Tábornok u. 2 H-1149 Budapest Hungary
| | - Róbert Glávits
- 1 Veterinary Diagnostic Directorate Central Agricultural Office Tábornok u. 2 H-1149 Budapest Hungary
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