火鸡母鸡年龄和体重与繁殖性状的关系。

Relationships of age and body weight to reproductive traits in turkey hens.

作者信息

Robel E J

出版信息

Poult Sci. 1981 Dec;60(12):2709-12. doi: 10.3382/ps.0602709.

Abstract

An experiment was conducted for 23 weeks with 34 large white female turkeys and 86 small white female turkeys to determine productivity trends in aging turkey hens during the first year of production. Over the course of the egg production cycle, age significantly influenced all of the reproductive traits measured in both the large and small hens. For weeks 9 to 23 of the egg production cycle, egg production decreased by approximately 33 and 39%, egg mass by 25 and 30%, body weight by 4 and 1%, feed conversion (feed consumed/egg mass yield) decreased by 93 and 107%, egg weight increased by 12 and 11%, and dietary intake increased by 24 and 9% in large and small hens, respectively. Regression analysis indicated that there was a positive association of body weight with egg production, egg mass, and dietary intake up to approximately 10 kg in large hens and 6.5 kg in small hens.

摘要

用34只大白母火鸡和86只小白母火鸡进行了为期23周的实验，以确定产蛋第一年老龄母火鸡的生产性能趋势。在整个产蛋周期中，年龄对大白母火鸡和小白母火鸡所测量的所有繁殖性状均有显著影响。在产蛋周期的第9至23周，大白母火鸡和小白母火鸡的产蛋量分别下降了约33%和39%，蛋重分别下降了25%和30%，体重分别下降了4%和1%，饲料转化率（消耗的饲料/蛋重产量）分别下降了93%和107%，蛋重分别增加了12%和11%，采食量分别增加了24%和9%。回归分析表明，体重与产蛋量、蛋重和采食量呈正相关，大白母火鸡体重约达10千克、小白母火鸡体重约达6.5千克时仍保持这种关系。