Breeding management method of replacement gilt

Abstract

The invention discloses a breeding management method of replacement gilts, in particular to a breeding method of replacement gilts of North China pigs. The breeding management method of the replacement gilts is characterized in that the breeding management process includes the four breeding stages of before 90 days old, from 90 days old to the second estrus, from the second estrus to the 10th to 14th day before the third estrus, and from 10th to 14th before the third estrus to mating; before 90 days old, the replacement gilts are fed 5 times a day with the feeding amount to be 2.5 kilograms per day; from 90 days old to the second estrus, the replacement gilts are fed 3 times a day with the feeding amount to be 3 kilograms per day, the replacement gilts are rushed to the open space outsidea pig house for 20 minutes every morning and afternoon, the replacement gilts are promoted to have estrus once every morning and afternoon, and artificial back pressure is performed to check for estrus; from the second estrus to the 10th to 14th day before the third estrus, the replacement gilts are fed twice a day with the feeding amount to be 2.0 kilograms per day; from from 10th to 14th beforethe third estrus to mating, the replacement gilts are fed twice a day with the feeding amount to be 3.5 kilograms per day, and 200 grams of starch is supplemented per day.

Description

technical field [0001] The invention relates to the technical field of pig raising, in particular to a breeding and management method for gilts of Jianghuai black pigs. Background technique [0002] Jianghuai black pig is a meat-fat dual-purpose breed, belonging to the North China pig breed, and an important branch of the North China Huai pig in the Huaibei Plain. This variety has the advantages of high fecundity, good motherhood, stress resistance and disease resistance. [0003] However, at present, most of the gilts in northern Anhui pigs adopt a rough breeding management method, and they are bred according to the previous traditional methods. As a result, the gilts are not in estrus or the estrus is not obvious, and the number of litters is small, which virtually increases the breeding quality. cost. Contents of the invention [0004] In order to overcome the shortcomings of traditional gilt breeding, the present invention provides a scientific and standardized breed...

AI Technical Summary

Problems solved by technology

[0003] However, at present, most of the gilts of Wanbei pigs adopt a rough breeding management method, and they are bred according to the previous traditional methods. As a result, the gilts are not in estrus or the estrus is not obvious, and the number of litters is small, which virtually increases the breeding quality. cost