摘要
试验观察了几种早期限饲措施对肉鸡补偿性生长和消化器官发育的影响。结果显示,各种早期限饲处理均可明显降低肉鸡早期的生长速度和体重;恢复自由采食后肉鸡获得了补偿性生长,适当的早期限饲并不影响肉鸡的最终上市体重;早期限饲改善了饲料效率;限饲鸡胰脏相对重量和肌胃+腺胃相对重量显著高于非限饲鸡,提示早期限饲诱发肉鸡补偿性生长可能与限饲促进消化器官发育、提高消化能力有关。
The experiment was conducted to determine the effects of early feed restriction program on compensatory growth and digestive organs development of broilers. The results showed that all feed restriction treatments reduced the growth rate and body weight of broiler at the early stage. Compensatory growth took place when the birds were fed ad libitum again,and proper feed restriction did not affect the final body weight of broiler on market age. Feed conversion ratio was improved by feed restrictionat at early time. The relative weights of pancreas and proventriculus plus gizzard were significantly higher in feed-restricted broilers than those in normal controls,indicating that compensatory growth induced by early feed restriction might be correlated with the promoted development of digestive organs.
出处
《中国家禽》
北大核心
2007年第2期11-14,21,共5页
China Poultry
基金
国家自然科学基金项目(30600440
30571366)
华南农业大学校长基金项目
关键词
肉鸡
补偿性生长
早期限饲
消化器官
broiler
compensatory growth
early feed restriction
digestive organ
