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Selection for growth performance in broiler chickens associates with less diet flexibility.


ABSTRACT: Global competition for high standard feed-food resources between man and livestock, such as industrial broilers, is a concerning problem. In addition, the low productivity of scavenger chickens in developing countries leaves much to be desired. Changing the ingredients, and therefore, the nutrient composition of feed intake by commercial fed as well as scavenger chickens seems like an obvious solution. In this study, the ability of four broiler chicken breeds to perform on a commercial versus a scavenger diet was tested. The four broiler breeds differed genetically in growth potential. A significant (P < 0.01) negative effect of the scavenger diet on the bodyweight of the fast growing breeds was found and this effect decreased with decreasing growth rate in the other breeds. These differences in bodyweight gain could not be explained by differences in nutrient digestibility but were caused by the lack of ability of the fast growing breeds to increase their feed intake sufficiently.

SUBMITTER: Pauwels J 

PROVIDER: S-EPMC4456394 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Selection for growth performance in broiler chickens associates with less diet flexibility.

Pauwels Jana J   Coopman Frank F   Cools An A   Michiels Joris J   Fremaut Dirk D   De Smet Stefaan S   Janssens Geert P J GP  

PloS one 20150604 6


Global competition for high standard feed-food resources between man and livestock, such as industrial broilers, is a concerning problem. In addition, the low productivity of scavenger chickens in developing countries leaves much to be desired. Changing the ingredients, and therefore, the nutrient composition of feed intake by commercial fed as well as scavenger chickens seems like an obvious solution. In this study, the ability of four broiler chicken breeds to perform on a commercial versus a  ...[more]

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