Method for breeding Wannan boars

Abstract

The invention discloses a method for breeding Wannan boars, which includes: subjecting paternal Duroc pigs and maternal Wannan spotted pigs to hybridization to obtain Du-Wan two-way hybrid sows; subjecting pure Wannan wide boars as male parents and the Du-Wan two-way hybrid sows as female parents to hybridization to obtain wild boars 50% of Wannan wild boars; subjecting the pure Wannan male wild boars as male parents and the boars 50% of the Wannan wild sows as female parents to hybridization to obtain wild boars 12.5% of Du-Wan blood and 75% of Wannan wild boars; and finally subjecting the wild boars which are 12.5% of Du-Wan blood and 75% of the Wannan wild boars as male parents and the wild boars 50% of the Wannnan wild boars as female parents to hybridization so as to obtain wild boars 12.5% of Du-Wan blood. By hybridizing the Wannan wild boars, the Wannan spotted pigs and Duroc pigs, the obtained wild boars are stable in hereditary character, high in adaptability, resistant to coarse feed, low in feeding quantity, low in rearing cost, fine in reproductive performance, high in disease resistance, high in meat nutrition value, full of wild taste, high in slaughter rate and good in economic benefit.

Description

technical field [0001] The invention relates to a method for breeding wild boars in southern Anhui, belonging to the field of biological breeding. Background technique [0002] 1. Wannan Huazhu (WNH100) [0003] 1. Southern Wanhua pigs have low requirements on feeding and management conditions, and have a strong ability to resist animal diseases, so they are suitable for free-range breeding by local farmers. This variety has six major characteristics: 1. Early maturity and high reproductive rate. The sows are generally 3-4 months old at maturity and 5-6 months old at mating age; the average estrus cycle is 22-23 days; the gestation cycle is 112 months. ~116 days; multiparous sows per litter 10-14, high-yielding period 7-12 litters; weaning age 28-32 days; 2. Many teats, generally 7-8 pairs, good maternal nature, lactation rate as high as 96% ; The average birth weight of piglets is 0.8kg; the survival rate of piglets is 92.3%. 4. Strong stress resistance and disease resi...

AI Technical Summary

Problems solved by technology

Disadvantages of this breed are not very high fecundity, poor motherhood, "slightly lower carcass meat production, high intermuscular fat content

And poorer reproductive performance