摘要
选择１４０日龄健康的伊苏褐商品蛋鸡７９８４羽，随机平分成试验和对照两组，试验组在蛋鸡全价料中前期（１４７－２１０日龄）添加４００ｍｇ／ｋｇ和后期（２８０－４２０日龄）添加３００ｍｇ／ｋｇ的８０１生物活性添加剂。结果表明：全期试验组比对照组蛋鸡死亡率下降１６．８６％（Ｐ＜０．０１），产蛋量增加１．９６％，料蛋比下降０．７８％，投入产出比为１：４．１８，平均每羽获利１．２０元，尤其在热应激时效益更为明显，投入产出比为１：６．０７．
Isabrown Commereial Layers of 20 week-old were randomly divided into two groups for different diet treatment. BA 801 was added to the diet for the experimental group(3 992 hens)at calculated levels of 400 ppm during 21 week old to 30 week old, and 300 ppm during 40 week old to 60 week old.The results showed that the experimental layers during 21th week to 60th week displayed the mortality being 16.81% lower(P<0.01),egg weight 1.96% higher and feed consumption 0. 78% lower,thus the input and output ratio reaching 1:4.18,and the profit per hen going up to 1.20 Yuan (RMB).Perticularly during the hot time(48th week to 55th week)the income was greatly increased,the input and output ratio came to as high as 1:6.07.
关键词
801添加剂
卵用鸡
生产性能
饲料
bioactive additive 801
layer
mortality
performance
economic efficiency
