【作者】 田晓婷； 侯水生； 高玉鹏； 黄苇； 赵玲； 喻俊英； 韩燕云；

【Author】 Tian Xiaoting~3 Hou Shuisheng~(*1,2) Gao Yupeng~3 Huang Wei~(1,2) Zhao Ling~(1,2) Yu Junying~(1,2) Han Yanyun~3 1.Institute of Animal Science,CAAS,Beijing 100094,China; 2.State Key Laboratory of Animal Nutrition Science,Beijing 100094,China; 3.College of Animal Sci-tech,Northwest A & F University,Yangling 712100,China

【机构】 西北农林科技大学动物科技学院； 中国农业科学院北京畜牧兽医研究所；

【摘要】 本试验采用单因子完全随机设计,比较了3～7周龄自由采食条件下 AA 肉鸡及自来航蛋鸡生长性能及其摄食相关的血液生化与激素指标等方面的差异,分析肉鸡采食量大、生长迅速的原因,并为进一步完善家禽摄食调控提供合理依据。结果表明：不同类型鸡种间迥异的生长速度与采食量及饲料转化率有关；7周龄肉鸡血浆肌酸激酶、天冬氨酸氨基转移酶、尿酸水平显著高于同日龄蛋鸡；4周龄肉鸡血浆瘦素水平显著低于同日龄蛋鸡水平,而血浆 NPY 浓度显著高于蛋鸡。更多还原

【Abstract】 This experiment was adopt single factor completely random design,comparison about food-intake,plasma bio- chemistry indexes,and plasma hormone levels were made between AA broilers and Leghorn chicks from during 3～7 weeks under ad libitum,the results showed,different growth rates of AA broilers and Leghorn chicks were due to different food consumption and feed efficiency,Broiler chicks showed higher levels of plasma CK,AST and UA in 7 week-of-age,and broiler chicks showed higher levels of plasma NPY in 4 week-of-age,but lower plasma leptin level than Leghorn chicks.更多还原