摘要
试验结果表明,重庆市简易蛋鸡舍的设计基本上是合理的。影响蛋鸡产蛋率的主要环境因素是气温,6—8月温度升高,产蛋率下降;9月气温下降,产蛋率上升,呈显著负相关(0.01<P<0.05)。温度升高,死淘率也升高,温度下降,死淘率也随之下降。温度与死淘率呈显著相关(P<0.01)。
The test was aimed at investigating whether Issa hens could keep maintaining high production level at the simply equiped coops and whether the environment of simply equiped coops could be a suitable one for the growth and production of hens. the results showed that designs of Chongqing Municipal Simply Equiped Farm were basically rational. The primary environmental factor influencing hen-day production was natural temperature, e. g., high temperature during June to August with lower egg production; lower temperature in September with rising egg production, revelled negative interrelation significantly(0.01<P<0.05). The interrelation between temperature and cull-and-death rate revelled significantly P<0.01, e. g., high temperature with high death-cull rate, lower temperature with lower death-cull rate. Conclusion showed that some measures to lower hot weather should be taken during summer time in simply equiped coops.
出处
《家畜生态》
1993年第4期1-4,共4页
Ecology of Domestic Animal
关键词
蛋鸡舍
温度
光照
评价
Simply equiped hen coops
Temperature
Harmful gas
illumination
Cull-and-death rate