Effects of Varying Male to Female Ratios on Natural Cage-breeding Rooster's Sexual Behavior
In order to investigate and comprehend the habits of natural mating caged roosters in terms of their behavioral traits.In this experiment,594 50-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.
Natural mating cagesRoosterMating behaviorMale-female ratio
NETL
NSTL
万方数据
