摘要
我国每年约生产140多亿斤菜籽饼、棉籽饼和葵花仁饼(以下称三合饼),都因含有抑制因子(毒素)而未被广泛利用。为利用这些丰富的饲料资源,我所进行的研究表明:在蛋用型鸡饲料中,用三合饼可以代替或减少鱼粉和大豆饼的用量。
In the growing period,rapeseed meal(limited to within 8%),cottonseed meal(limited to within 8%)and sunflower meal were used in the ration to replace soybean meal and to reduce the cost of expensive fish meal in the diet.Feeding and metabolic experiments were carried out of laylng hens by reducing protein:energy ratio 3—5 and increasing both lysine:energy and methionine plus cystine:energy ratio 15—10%(in comparison with NRC).Results showed that the use of rapeseed,cottonseed and sunflower meal in diet of the experimental group gave similar weight gain and egg production as that fed on corn-soybean diet.During laying-season the all vegetable diet consisting of 20%rapeseed meal(limited to within 8%),cottonseed meal(limited to within 5%)and sunflower meal were used to replace the 10%fish meal.The feeding experiment of the first year of egg production gave results as follows:laying rate 61.32%,number of eggs 223.2,total egg weight 13.26 kg and feed efficiency 1:2.96.It was 15%lower than that of the highly efficient fish-soybean diet,but the cost of egg production could be reduced by 10%.
作者
聂志武
Nie Zhiwu(Institute of Animal and Veterinary Sciences,Shanxi Academy of Agricultural Sciences,Taiyuan,Shanxi Province)
出处
《中国农业科学》
1985年第1期77-82,共6页
Scientia Agricultura Sinica
