精料中添加脱毒蓖麻饼饲喂泌乳奶牛试验

A Trial of Supplementing Detoxicated Castor Bean Meal for Dairy Cattle

试验选用年龄、胎次、泌乳月和泌乳量相近的黑白花奶牛９头，随机分为３组（每经３头）。研究精料中添加脱毒蓖麻饼对奶牛泌乳量和现成分的影响。对照组、试验Ⅰ组和Ⅱ组分别添加０％、１０％、１５％的脱毒蓖麻饼，各组营养水平相近。结果表明：奶牛精料中添加脱毒蓖麻饼，对乳品质无不良影响，乳中不含有蓖麻碱和变应原毒素。但蓖麻饼加入量达到１５％时，有降低泌乳量的趋势。

heads of dairy cattle,of similar ages,birth times,milk months and milk yields,wererandomly divided into 3 groups to study the effects of supplementing detoxicated castor bean meal onmilk yield and milk quality.0%, 10% and 15% detoxicated castor bean meal were supplemented inthe daily concentrates sf +he Caffles. The results showed that there were no significant effects ofsupplementing detoxicated castor bean meal in concentrates on milk quality.Ricinine and Allergentoxin were not found in the milk.There was a tendency of decreasing milk yield when 15% detoxicat-ed. castor bean meal was supplemented.