The purpose of rearing meat female rabbits is to allow the female rabbit to provide a large number of high quality sub-rabbits, and the female rabbit's fertility rate often restricts the production level of meat female rabbits. To raise the rabbit production practice and some advanced methods in rabbit production around the world, summarize the following effective measures on how to improve the fertility rate of female bred female rabbits.
When grasping the age of males and females to reach sexual maturity, although they have fertility, they should not be breeding at this time. Because the sexual maturity of the rabbit is earlier than the maturity of the body, the various parts of the body of the rabbit are still in the stage of growth and development. If they participate in breeding at this time, on the one hand, the growth and development of the female rabbit will be affected. On the other hand, it will result in After mating, female rabbits had low conception rate, few number of births, small initial weight of rabbits, and low survival rate of rabbits. The use of too late will also affect the reproductive function of female rabbits. In general, under normal feeding conditions, the meat rabbit can reach the 70% of the standard body weight of the variety and the initial allocation can be performed.
The control body of the breeding rabbit should be plump and well-growth, and the chest should be wide and deep, the back waist should be flat, and the buttocks must have a wide circle. In layman's terms, when the rabbit's lumbar vertebrae are touched with hands, there are no obvious granule projections, and when the rabbit's back neck is lifted by hand, it struggles. Being too fat or too thin can not be used as a seed, otherwise it will result in fewer births or infertility.
The proportion of males and females controlling rabbits in males and females is preferably 1:10. Too few male rabbits will increase the breeding burden of breeding male rabbits and reduce the female rabbit's conception rate. Too many male rabbits will increase feed costs and thus affect economic efficiency.
Creating a suitable living environment Although there is no obvious seasonality in the breeding of meat rabbits, due to the different seasons of temperature, light and nutritional status, the fertility rate of the female rabbits will have a certain influence. The spring and autumn seasons generally have a warm climate, rich feed, female estrus, and high fertility rates. This is the best season for breeding rabbits. In summer, the climate is hot, high temperature and humidity, the loss of appetite in meat rabbits, physical weakness, sexual function is not strong, and the fertility rate of mating is low. In winter, the temperature is low, the green feed is lacking, the nutrition level is decreased, the body of the rabbit is thin, and the rate of mating and convalescence is low. For this reason, it is necessary to provide the female rabbit with an appropriate living environment for breeding so as to improve the conception rate.
Select the appropriate breeding time in spring and autumn, it is best to choose the rabbit to breed at 8-11 am. According to relevant data, rabbits are mostly sexually active in the early morning or early evening. So early in the morning or late in the evening, females have a high rate of conception.
The use of repeated breeding maternal rabbits is a stimulating ovulatory animal. Under normal circumstances, the ovulation of the female rabbit occurs 10-12 hours after the mating stimulus, and if it is not stimulated by mating, it will not ovulate. Therefore, in the practice of raising rabbits, it is not always necessary for the female rabbit to ovulate when it is in heat, and it is not always necessary to have estrus when ovulating. Therefore, adopting the repeated breeding method, that is, using the same male rabbit to mate once every 5-6 hours after the first mating, can increase the fertility rate of the female rabbit.
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Jiangxi Institute of Biological Products Inc. , https://www.jxinstitute.com
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