摘要
36头杜洛克×DⅣ杂交猪随机分为3组，在等能等氮的基础上，以玉米-豆粕日粮为对照组（第1组），“双低”菜粕替代50％豆粕为试验组，并分别以总赖氨酸和可消化赖氨酸配合日粮，配合成2组试验日粮（第2组和第3组）。试验结果表明：在试验前期，对照组平均日增重最快，为（778±26．2）g，第3组比之，为（735．5±31．1）g，第2组较慢，为（717．3±50．9）g（P＞0．05）。在试验后期，各组生长情况是，第3组（785．5±46．7）g最好，第2组（738．2±45．4）g次之，第1组（717．1±39．2）g最慢，组间差异也不显著（P＞0．05）。胴体瘦肉率3组间差异不显著。由于使用了双低菜粕，第2组和第3组每千克增重成本明显低于对照组，经济效益明显好于对照组。
Thirty-six Duroc × DⅣ piglets, at the mean age of 78 ~ 79 days, were assigned to 6 crates, each of which contained 6 pigs. 3 diets, which were isoenergetic and isoproteinic, were allotted to 2 crates randomly. The diet for the control group (group 1) was comprised of corn-soybean meal, while the diets for experimental groups (group 2 and group 3) were with 50% of substitution of double low rapeseed meal for soybean meal, however, the diet for group 2 was formulated on the basis of total lysine, on the other hand, the diet for group 3 on the basis of ileal di-gestible lysine. The results showed that the average daily gain(ADG) ranked group 1, group 3, and group 2 in the growing period (P>0.05); in the finishing period; the rank for ADG was group 3, group 2, and group 1 (P> 0.05) in the finishing period. The differences among the groups for the lean meat percentage were insignificant (P>0.05). From the point-view of profit, the experimental group were much better than the control one because of the use of double-low rapeseed meal.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1999年第6期584-587,共4页
Journal of Huazhong Agricultural University
基金
国家攻关项目!96-003-01-03
湖北省重大研究项目
关键词
赖氨酸
可消化赖氨酸
猪
双低菜粕
饲料
日粮
double-low rapeseed meal, lysine, digestible lysine, average daily gain, lean percentage
