鸡用加强料筛选研究

Studies on the screening of "fortified supplements" for use in chickens

250只健康无病、同日龄的鸡分为4个试验组和1个对照组,每组50只.对照组喂基础日粮.将4种“加强料”以0.5%的比例替换基础日粮中的玉米即可组成4种试验日粮.试验Ⅰ组和试验Ⅱ组的产蛋率和饲料转化率(料蛋比)优于(P<0.01)对照组.试验Ⅰ组和试验Ⅳ组之间无显著差异(P>0.05),试验Ⅱ组和试验Ⅲ组之间也无显著差异.试验Ⅰ组和试验Ⅳ组的“加强料”可以提高产蛋后期鸡的产蛋性能.

250 healthy hens of the same age were allotted to one control, group or one of four experimental groups of 50 birds each. Control hens were fed the basal diet. Four 'fortified supplements'were used to replace corn in the basal diet at the same level of 0. 5% to produce 4 experimental diets. Egg production and feed conversion efficiency (feed: egg ratio) were better(P<0. 01)in experimental groups I and IV than in the control group. There were no significant differences(P>0. 05) between experimental groups Ⅰ and Ⅳ, and between experimental groups Ⅱ and Ⅲ. 'Fortified supplements' used in experimental groups Ⅰ and Ⅳ could improve performance in hens in the late period of egg production.