海兰褐蛋鸡在产蛋不同阶段蛋形指数和蛋重的变化研究  

Study on the Changes of Egg Shape Index in Different Laying Stages of Hyline Brown layers

作　　者：曹春梅[1] 刘子奇 闫贵龙[1] CAO Chunmei;LIU Ziqi;YAN Guilong(College of Animal Science and Technology,Hebei North University,Zhangjiakou 075000,China)

机构地区：[1]河北北方学院动物科技学院,河北张家口075000

出　　处：《家禽科学》2020年第6期8-11,共4页Poultry Science

基　　金：河北北方学院博士科研基金12995501。

摘　　要：选择5500只健康海兰褐蛋鸡作为试验动物,分别于27、46周龄和67周龄测量蛋形指数和蛋重。结果显示,蛋形指数从27~67周龄呈显著或极显著(P<0.05或P<0.01)增大,27周龄蛋重极显著(P<0.01)小于46周龄和67周龄,而46周龄体重与67周龄体重差异不显著(P>0.05)。可见,海兰褐蛋鸡的蛋形指数和蛋重在产蛋不同阶段有明显变化。5500 healthy Hyline Brown layers were used as test animals,to measure egg shape index and egg weight at 27,46 and 67 weeks of age respectively.The results showed that the egg shape index increased significantly(P<0.05 or P<0.01)from 27 to 67 weeks of age,and egg weight at 27 weeks of age was significantly(P<0.01)less than 46 and 67 weeks of age,while there was no significant(P>0.05)difference between 46 and 67 weeks of age.The results indicated that the egg shape index and egg weight of Hyline Brown layers changed obviously at different stages of laying eggs.

关 键 词：海兰褐蛋鸡 蛋形指数 蛋重 

分 类 号：S831.2[农业科学—畜牧学]