Journal article
Experimental infection of broiler breeder hens with the intestinal spirochaete Brachyspira ( Serpulina ) pilosicoli causes reduced egg production
Avian Pathology, Vol.31(2), pp.169-175
2002
Abstract
The pathogenic potential of the anaerobic intestinal spirochaetes Brachyspira (Serpulina) pilosicoli and Brachyspira innocens was evaluated in adult chickens. Thirty 17-week-old Cobb broiler breeder hens were individually caged in three groups of 10 birds. Control birds (group A) were sham inoculated with sterile broth medium. Birds in the other two groups (groups B and C) were inoculated, respectively, with an isolate of B. innocens or of B. pilosicoli. Birds were monitored daily, and killed at 41 weeks of age. Infection had no consistent effect on body weight gain, but inoculation with B. pilosicoli resulted in a transient increase in faecal water content. B. innocens infection had no effect on egg production, but B. pilosicoli infection caused a delayed onset of laying, and a highly significant reduction in egg production over the first 11 weeks of lay. This study confirms that B. pilosicoli can cause serious egg production losses in adult chickens, while B. innocens is not obviously pathogenic.
Details
- Title
- Experimental infection of broiler breeder hens with the intestinal spirochaete Brachyspira ( Serpulina ) pilosicoli causes reduced egg production
- Authors/Creators
- C.P. Stephens (Author/Creator) - Toowoomba HospitalD.J. Hampson (Author/Creator) - Murdoch University
- Publication Details
- Avian Pathology, Vol.31(2), pp.169-175
- Publisher
- Taylor & Francis
- Identifiers
- 991005541985107891
- Murdoch Affiliation
- School of Veterinary and Biomedical Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.248 Sexually Transmitted Infections
- 1.248.2445 Lawsonia Intracellularis
- Web Of Science research areas
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science