Effects of ambient temperature on sexual maturity in chickens.
Effects of ambient temperature on sexual maturity in chickens.
复制标题
环境温度对鸡性成熟的影响。
DOI：
10.3382/ps.0592532
复制
发表时间：
1980
期刊：
影响因子：
4.4
通讯作者：
J. F. Knechtges
中科院分区：
文献类型：
--
作者：
K. V. Vo;M. Boone;B. L. Hughes;J. F. Knechtges
在两个试验中的每一个中，将96只14日龄的单梳白色来航鸡（48只雄性和48只雌性）分成三组，然后在21、29或35 ℃的环境温度下生长。在两个试验中，随着温度的升高，雄性的性成熟年龄均降低。当环境温度为35 ℃时，试验1和2分别在54和56日龄时产生第一精液，而当环境温度为21 ℃时，试验1和2分别在68和63日龄时产生第一精液。在最高环境温度下，雌性的性成熟显著延迟。精液质量仅受最高环境温度的轻微影响。虽然在35 ℃下产蛋量受到严重影响，但除少数情况外，生育力和孵化率仅受到轻度影响。
Ninety-six, 14-day-old Single Comb White Leghorns (48 males and 48 females) in each of two trials were divided into three groups and grown thereafter under one of the ambient temperatures of 21, 29, or 35 C. Age at sexual maturity of males was decreased in both trials as temperature was increased. First semen was produced at 54 and and 56 days of age in Trials 1 and 2, respectively, when the ambient temperature was 35 C and 68 and 63 days at 21 C for Trials 1 and 2, respectively. Sexual maturity of females was significantly delayed at the highest ambient temperature. Semen quality was only slightly affected by the highest ambient temperature. Although egg production was seriously affected at 35 C, fertility and hatchability, except in a few instances, were only mildly affected.