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pro vyhledávání: '"Rosemary Pettit-Riley"'
Publikováno v:
Applied Animal Behaviour Science. 79:11-25
To test the hypothesis that the frequency of aggression in broiler chickens will be lower in response to increased crowding and perch availability, groups of broiler were observed from 2 to 6 weeks of age. Both the type of aggression and the pen regi
Publikováno v:
Poultry science. 81(4)
This study attempted to evaluate the effect of various housing densities and perch availability on the immune status of commercial broilers. Birds were raised from hatch to 42 d of age with 10, 15, and 20 birds/m2 in pens, with and without the availa
Publikováno v:
Poultry science. 81(1)
Broilers under commercial conditions might experience relatively high temperatures during summer and leg disorders year round that may be partially alleviated by providing them with access to cooled perches. It is unknown, however, how perch temperat
Autor:
Rosemary Pettit-Riley, Inma Estevez
Publikováno v:
Applied animal behaviour science. 71(2)
Exercise through perching has been suggested as a way to reduce the impact of leg problems in broiler chickens. It is possible that higher stocking densities may motivate birds to perch more, and perhaps reduce some of the detrimental effects to broi