中国畜牧杂志2011,Vol.47Issue(5):29-34,6.
发酵棉粕对肉鸡生长性能、血清生化指标及免疫功能的影响
Effects of Fermented Cottonseed Meal on Growth Performance,Serum Biochemical Parameters and Immunity of Broilers
摘要
Abstract
This study was conducted to examine the effects of fermented cottonseed meal (FCM) partly instead of soybean meal(SBM) on growth performance, serum biochemical parameters and immune function of broilers, and the best concentration was also determined. A total of 480 one-day-old Arbor Acres broilers with the weight of (44.40±l.ll) g were randomly divided into 4 groups with 6 replicates, The experimental period lasted 42 days. The control feed was added SBM according to the feeding standard of broilers, whereas in the other three feeds FCM was included at 5%, 10%, 15% levels to replace responding SBM. The results showed that compared with control, it had no significant effect on average daily weight gain (ADG), average daily feed intake (ADFI) and feed gain ratio (F/G) by adding the FCM but it could significantly improve IgG, IgM level and thymus index of the 21-days-old broilers (P < 0.05) by adding 5% cottonseed meal, while feed which contained 15% FCM can reduce the levels of serum urea nitrogen (UN) (P < 0.05). In addition, thymus index was increased by FCM (P < 0.05), while the FCM had no effect on spleen index. After 42 days, the study showed that adding 5%, 10% FCM could decrease UN levels (P <0.05), while the thymus index and bursa index were significantly improved when 15% FCM added. The results indicated that SBM could be replaced by FCM with up to 15% without affecting the broilers growth performance. The study established a parameter Z which could evaluate the FCM by principal component analysis and the best concentration of FCM in 1-21, 22-42 days' periods were 5% and 15%, respectively.关键词
发酵棉粕/生长性能/血清生化指标/免疫功能/主成分分析/肉鸡Key words
fermented cottonseed meal/ growth performance/ serum biochemical parameters/ immune function/ principal component analysis/ chicken分类
农业科技引用本文复制引用
汤江武,吴逸飞,孙宏,姚晓红,王新..发酵棉粕对肉鸡生长性能、血清生化指标及免疫功能的影响[J].中国畜牧杂志,2011,47(5):29-34,6.基金项目
浙江省重大科技专项资助项目(2006C120971) (2006C120971)