潭牛鸡配套系母系产蛋期体重与产蛋性能的相关性分析

Correlation Analysis on Body Weight and Laying Performance During Laying Period of Female Line of Tanniu Chicken

为研究潭牛鸡配套系母系的产蛋性能与体重、体增重、种蛋利用率之间的关系,试验对2个试验组3万只母系鸡群18~21周龄、22~36周龄、38~44周龄三个阶段内体增重与蛋增重、产蛋率、种蛋利用率、耗料量进行关联性分析。结果显示:18周龄(开产)蛋鸡体重对21周龄蛋鸡体重和产蛋率有积极作用(P<0.05),22周龄体重与36周龄体重存在显著正相关关系(P<0.05),38周体重对44周龄体重有显著正向影响(P<0.05)。22周龄蛋鸡产蛋率和耗料重会显著增加36周龄种蛋利用率(P<0.05),38周龄产蛋率对44周龄种蛋利用率存在显著正相关关系(P<0.05)。研究表明,潭牛鸡体重、体增重与产蛋数、种蛋利用率均呈显著正相关,实际生产中应合理控制产蛋前期体重对产蛋率的正向影响,同时保障产蛋高峰期的种蛋利用率。

In order to study the relationship between laying performance and body weight,body weight gain and setable egg utilization rate of the parent generation of Tanniu chicken matching line,the correlation analysis was conducted between body weight gain and different ranges of body weight,laying weight,weekly weight gain and feed consumption at three stages of 18 to 21 weeks of age,22 to 36 weeks of age and 38 to 44 weeks of age.The results showed that weight of 18-week-age(onset)hens had a positive effect on weight and egg production rate of 21-week-age hens(P<0.05),22-week-age weight had a significant pos⁃itive correlation with 36-week-age weight(P<0.05),and 38-week-age weight had a significant positive effect on 44-week-old weight(P<0.05).Egg production rate and feed weight at 22 weeks of age significantly increased egg utilization at 36 weeks of age(P<0.05),and there was a significant positive correlation between egg production rate at 38 weeks of age and egg utilization at 44 weeks of age(P<0.05).In summary,body weight and body weight gain were significantly and positively correlated with the number of eggs laying and the hatching egg utilization rate of Tanniu hens.In actual production,the positive effect of body weight on egg production rate in the early laying period should be reasonably controlled,while the hatching egg utilization rate during the peak laying period should be guaranteed.