择食饲喂对肉鸡胴体品质和胃肠道发育的影响  

Effect of choice feeding on gastrointestinal development and carcass quality of broilers

作　　者：姚军虎[1] 田晓燕[1] 叶丙奎[1] 吴孝兵[1] 宋宇轩[1] 

机构地区：[1]西北农林科技大学动物科技学院

出　　处：《饲料工业》2004年第6期21-23,共3页Feed Industry

摘　　要：试验研究择食饲喂对肉鸡胴体品质、胃肠道发育的影响。144羽22日龄艾维茵(Avian)肉鸡随机分成3个处理,每个处理4重复,每重复12羽,分别饲喂粉碎玉米+浓缩料、豆粕+平衡料的试验日粮和基础全价对照日粮,每处理均设两个食槽。结果表明:①择食饲喂玉米+浓缩料可显著促进肉鸡胃肠道发育(P<0.05),改善肉鸡的健康状况;②择食饲喂对肉鸡胴体品质的影响差异不显著(P>0.05),但择食饲喂玉米组能蛋比较高,腹脂率偏高。The experiment was conducted to study the effect of choice feeding on growth performance ,carcass quality and development of gastrointestinal tract of 22～49d broilers.One hundred forty four heads of 22d old Avian broilers were randomly allocated to 3 groups with each group including 4 replicates and 12 birds per replicate. Three feeding systems, which had based on the same nutrient levels, were offered to the 3 groups.Ground corn+protein concentrate(G+P), soybean meal +balanced diet(S+B) and complete diet (control) were fed respectively, with 2 troughs each replicate. The results showed:①Choice feeding G+P improved gastrointestinal development (P<0.05) and health status.②Choice feeding had no significant effect on carcass quality(P>0.05) except a little increasing with abdominal fat ratio in broilers feeding with G+P, for the higher ratio between energy and crude protein contents of the practical diets in choice feeding groups.

关 键 词：择食饲喂 肉鸡 胴体品质 胃肠道发育 影响因素 

分 类 号：S831[农业科学—畜牧学]