不同公母比对本交笼模式下种公鸡性行为影响的研究

Effects of Varying Male to Female Ratios on Natural Cage-breeding Rooster's Sexual Behavior

为探究本交笼养模式下种公鸡的行为学特征,了解本交笼种公鸡的行为习惯。该试验在本交笼模式下选择594只50周龄的罗曼粉蛋种鸡,随机分为2组,每组3个重复,每个重复99只鸡,试验1、 2组公母比分别为1∶8和1∶10,连续1周观察各处理组种公鸡的行为,并进行记录和分类统计。结果表明:本交笼养蛋种鸡的交配活动显著发生在下午,同时试验组1鸡只交配频率显著高于试验组2 (P<0.05)。鸡只在一天开灯时间内交配频率的时间分布结果显示,鸡只的交配频率主要集中在16:00—19:00,试验组1在17:00—18:00的交配频率显著高于试验组2 (P<0.05),在18:00—19:00的交配频率则极显著低于试验组2 (P<0.01)。试验组1中公鸡体重略低于试验组2,均匀度和平均交配次数高于试验组2,但差异不显著(P>0.05)。对种公鸡的等级进行划分,试验组1等级地位较高的种公鸡体型偏小,而试验组2等级地位较高的种公鸡体型则偏大;剔除笼内无效种公鸡后,种蛋受精率显著提高(P<0.05)。可见,试验组1种公鸡的均匀度和配种能力要优于试验组2。

In order to investigate and comprehend the habits of natural mating caged roosters in terms of their behavioral traits.In this experiment,59450-week-old Roman pink egg breeders were randomly divided into 2 groups with 3 replicates in each group and 99 chickens in each replicate.The ratio of males to females in groups 1 and 2 was 1:8 and 1:10,respectively.The behavior of roosters in each treatment group was observed for one week and recorded and classified. The results showed that the mating activity of laying breeders in this cage occurred significantly in the afternoon, and the mating frequency of chickens in experimental group 1 was significantly greater than that in experimental group 2 (P < 0.05). The time distribution of the mating frequency of chickens in one day showed that the mating frequency of chickens was mainly concentrated at 16: 00-19: 00. The mating frequency of group 1 at 17: 00-18: 00 was significantly greater than that of group 2 (P < 0.05), and the mating frequency at 18: 00-19: 00 was significantly lower than that of group 2 (P < 0.01). The body weight of roosters in Group 1 was slightly lower than that in Group 2, and the uniformity and average mating times were greater than those in Group 2, but the difference was not significant (P > 0.05). The grade of the cocks was divided. The cocks with higher grade status in the experimental group 1 were smaller, while the cocks with higher grade status in the experimental group 2 were larger. The fertilization rate of breeding eggs was significantly increased(P < 0.05) after removing the ineffective breeding roosters in the cage. It can be seen that the uniformity and breeding ability of the roosters in experimental group 1 were better than those in experimental group 2.