作者
PIP Ponte, CMC Rosado, JP Crespo, DG Crespo, José Luís Mourão, MA Chaveiro-Soares, JLA Bras, I Mendes, LT Gama, JAM Prates, LMA Ferreira, CMGA Fontes
发表日期
2008/1/1
期刊
Poultry Science
卷号
87
期号
1
页码范围
71-79
出版商
Elsevier
简介
Free-range chickens are assumed to consume low to moderate levels of pasture, although the effects of forage intake in broiler performance and poultry meat quality remain to be established. In addition, despite cellulases and hemicellulases being widely used as feed supplements to improve the nutritive value of cereal-based diets for fast-growing broilers, the potential interest of these biocatalysts in the production of free-range chicken is yet to be established. In this study, broilers of the RedBro Cou Nu × RedBro M genotype were fed a cereal-based diet in portable floorless pens located either on a rainfed subterranean clover (Trifolium subterraneum) pasture or on an irrigated white clover (Trifolium repens) pasture. Control birds were maintained at the same site in identical pens but with no access to pastures. The importance of pasture intake and enzyme supplementation in the performance and meat sensory …
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