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Free-range layer chickens as a source of Campylobacter bacteriophage
Antonie van Leeuwenhoek, 2007Bacteriophage specific for Campylobacter were isolated from chicken excreta collected from established free-range layer breed stock. Bacteriophage were either propagated on a Campylobacter jejuni host with broad susceptibility to bacteriophage (NCTC 12662) or on Campylobacter isolates from the same samples.
Catherine M, Loc Carrillo +3 more
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High Seroprevalence of Histomonas meleagridis in Dutch Layer Chickens
Avian Diseases Digest, 2011Histomona meleagridis is a protozoan parasite that may cause outbreaks of histomonosis with high mortality, especially in turkey flocks. Chickens are less susceptible to the disease than are turkeys, but are considered to act as an important reservoir. To determine the seroprevalence of H.
van der Heijden, H.M.J.F. +1 more
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Formation of the myelinated nerve fiber layer in the chicken retina
Glia, 1993AbstractOligodendrocytes in the ganglion cell layer, the myelinating cells in the chicken retina, were investigated morphologically and quantitatively. Oligodendroblasts divided in the inner retinal layer around the 14th day of incubation and differentiated into oligodendrocytes.
T, Nakazawa +3 more
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Outbreak of Type C Botulism in Commercial Layer Chickens
Avian Diseases, 2016This report describes an outbreak of type C botulism in two organic, free-range commercial layer farms in the Midwest. Hens affected were 64-wk-old Hy-Line brown hens and 34-wk-old Hy-Line brown hens owned by the same company, but housed on different premises, with approximately 20,000 birds per house.
Yuko, Sato +5 more
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Effect of Ochratoxin A on Salmonella typhimurium-Challenged Layer Chickens
Avian Diseases, 1996Eleven-day-old chickens received 10(8) colony-forming units Salmonella typhimurium orally for 2 consecutive days. The next day, the 13-day-old chickens were given a high dose of ochratoxin A (3 mg/kg) orally. The number of S. typhimurium in both the duodenal and cecal contents of chickens administered with high doses of ochratoxin A increased ...
T, Fukata, K, Sasai, E, Baba, A, Arakawa
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Immunological differences between layer- and broiler-type chickens
Veterinary Immunology and Immunopathology, 2002In commercial poultry husbandry, alternatives for the use of antibiotics and vaccines are under investigation, which preferably have to be applicable for both layer- and broiler-type chickens. There are indications that the defense mechanisms vary between layer- and broiler-type chickens.
Koenen, M.E. +2 more
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Immunogenicity of fowl typhoid vaccine in layer chickens
2009The immunogenicity of available fowl typhoid vaccine was studied in layer chickens following usual and suggested schedule of vaccination. A total of 30 chickens were divided into three groups; group A (vaccinated following usual schedule of vaccination), B (vaccinated following suggested schedule of vaccination) and C (as control), each containing 10 ...
Ferdous, J. +7 more
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Chlamydiosis in layer chickens
Australian Veterinary Journal, 1990G G, Arzey, K E, Arzey
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[Dust emission from chicken and layer houses].
Berliner und Munchener tierarztliche Wochenschrift, 1996Dust concentration was measured by Laser-monitor in two at a time houses for layers with litter or with cages and in two at a time houses for growing chicken with litter or with cages in the middle of the keeping area, in the outlet opening and in 3, 10, 50 and 100 m distance over a period of 8 weeks in winter, summer and spring/autumn.
R, Schmidt, S, Hoy
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