膨润土作蛋用种鸡饲料添加剂的研究——Ⅱ.对产蛋种鸡的饲喂试验

A STUDY ON FOOD SUPPLEMENT WITH BENTONITE IN CHICKS OF EGGPRODUCING BREEDS Ⅱ. The Experiment of feeding Bentonite in Brood Laying Hens

应用膨润土作饲料添加剂对产蛋种鸡进行饲喂试验。结果表明,在加有微量元素的基础日粮中,添加2％的膨润土较对照组受精蛋孵化率提高10.1％,差异显著;饲养只日产蛋率提高1.6％,差异不显著:料蛋比降低了5.6％,每产1枚种蛋平均耗料量降低6.2％。基础日粮中不加微量元素,以添加3％的膨润土较好,受精蛋孵化率、产蛋率、平均蛋重分别比对照组提高2.8％、0.1％、0.9％,差异不显著,料蛋比降低3.6％,每产1枚种蛋平均耗料量降低2.5％。在加有微量元素的基础日粮中添加膨润土的饲喂效果较好。

The experiment had studied the effect of different levels of Bentonite Supplemented in rations on the productive performance of brood laying hens and the quality of the eggs.The results indicated that when the microelement was supplemented in the basal rations,Supplementing 2% Bentonite in the rations,the hatchability of eggs fertilized was 10.1% higher than control group significantly (p<0.05); the laying rate-henday increaed 1.6% (p>0.05); the feed to egg ratio decreased 5.6%; the average quantity of feeds consumed/a egg laid by a hen decreased 6.2%.When the microelement wasn't supplemented in the basal rations,Supplementing 3% Bentonite in the rations,the productive performance of brood Laying hens and the quality of the eggs were more satisfactory,the laying rate,the average weight of the eggs and the hatchability were 0.1%,0.9% and 2.8% higher than control group,respectively;the feed to egg ratio decreased 3.6%; the average quantity of feeds consumed / a egg laid by a hen decreased 2.5%.To sum up,when the microelement was supplemented in the basal rations,supplementing Bentonite in the rations,the productive performance of brood laying hen and the quality of the eggs were better.