摘要
将８０只３０日龄红布罗鸡随机分为４组，半胱胺（ｃｙｓｔｅａｍｉｎｅ，ＣＳ）的添加量分别为０（对照）、１００、１５０、２００ｍｇ／ｋｇ体重。至５８日龄称重、宰杀、颈静脉采血，并用放免法对血液生长抑素（ＳＳ）和生长激素（ＧＨ）含量进行分析。结果：（１）与对照组相比，ＣＳ１００组净增重提高６．２％（Ｐ＜０．０５），其它剂量组增重无明显变化；（２）口服ＣＳ不改变仔鸡采食量，但饲料转化率ＣＳ１００、ＣＳ１５０、ＣＳ２００组分别提高５．７％、３．３％、６．３％；（３）与对照组相比，ＣＳ１００、ＣＳ１５０、ＣＳ２００组的血液ＳＳ含量分别下降７０．７％（Ｐ＜０．０５）、７６．２％（Ｐ＜０．０２５）和７６．１％（Ｐ＜０．０１），但ＧＨ水平只在ＣＳ１００组有明显升高（Ｐ＜０．０５）。
broilers at 30 days of age were divided into four groups. CS was added at the doses 0 (control),100,150, 200mg/kg B.W.. On the 58th day,weight gain of CS 100 group were increased by 6.2% (P<0.05) than that of control. No difference was found on food intake,but feed efficiency in CS 100 ,CS 150 ,CS 200 groups increased 5.7%,3.3% and 6.3% respectively. Compared with control,the blood SS levels of CS 100 ,CS 150 ,CS 200 groups reduced 70.7%(P<0.05),76.2% (P<0.025) and 76.1%(P<0.01) individually,but the concentration of GH significantly increased (P<0.05) only in CS 100 group. The results suggested that the effect of CS on broilers shows a dose dependent fashion.
出处
《中国畜牧杂志》
CAS
北大核心
1997年第4期11-13,共3页
Chinese Journal of Animal Science
