Management of breeding period of female deer

After autumn, it is the breeding period of female deer, such as mating, pregnancy, lactation and so on. Artificial feeding management must be followed up from the beginning to the end to ensure the economic benefits of artificial breeding.

1. Finishing the mother group before mating

Before mating, we should first remove the female deer that are infertile, have addiction, are too old and have serious diseases without breeding value. According to the blood relationship, age and health status, the species core group, the general breeding group and the first mating female deer group were formed. A breeding group should be composed of 15,30 female deer. The body fat of female deer has an important effect on speeding up the progress of mating and improving the conception rate. The well-nourished herds of female deer have early estrus and high conception rate and twin rate.

two。 Correctly arrange the mating of female deer

The female deer reached sexual maturity at 1.5 years old, but the suitable mating age should be 2.5 years old. The suitable breeding period for deer is from late August to November. The female deer are in estrus every 18-24 days, each time lasting 1-4 days. Breeding male deer should choose strong individuals with fast growth, high antler yield, strong disease resistance and stable heredity, and generally put one male deer for every 15 to 20 female deer. After estrus, the female deer should mate in time and mate for 2 or 3 times in succession.

3. Careful management of pregnancy

The gestation period of female deer is seven and a half months. In the early stage of pregnancy, the fetus grows slowly; with the growth of the fetus, the uterus of the female deer increases gradually, and the weight of the female deer increases continuously; in the later stage of pregnancy, the weight of the female deer can increase by 10 kg to 15 kg, and the weight of the mother deer can increase by 15 kg to 20 kg. Female deer should be properly fed with green coarse feed before and in the middle of pregnancy, increase the proportion of calcium in the diet in the later stage of pregnancy, and choose feed with small size, good quality, strong palatability and easy digestion. In winter and early spring lack of green season, every day to feed carrots, green vegetables and other succulent feed 1.0-1.5 kg. The feeding amount of concentrate, mineral and succulent feed should be appropriately increased during mating and antler period, and during pregnancy and lactation of female deer.

4. Prepare for midwifery

Pregnant female deer began to give birth one after another in early May. whether the mother deer can give birth normally and whether the newborn deer can survive healthily or not is directly related to the development of the herd and the economic benefits of raising deer. Therefore, the prenatal performance and birth process of female deer should be observed in time, and the nursing preparation of newborn deer should be done.

5. Supplement nutrition during lactation

The average lactation period of female deer is 3 months. The milk yield of female deer increased gradually after delivery, and generally reached the peak within 30-45 days after delivery, and lasted for 45-50 days, and then decreased gradually. Therefore, female deer must supplement full-price feed such as protein, energy, minerals and vitamins during lactation in order to improve lactation.