Method for purifying and rejuvenating Yimeng black goats

Abstract

The invention discloses a method for purifying and rejuvenating Yimeng black goats. The method includes the following steps: step I, selecting male black goats and female black goats with a ratio of 1: 9, separating and culturing for 6 months, eliminating weak bodies and supplementing the weak bodies; step II, combining the estrus cycle and pedigree information of male and female black goats, evenly distributing the female goats to the male black goats in estrus synchronization to obtain a basic population, and breeding the basic population in a local cross mode; step III, after natural breeding, strictly screening the black goats bred by each generation, and eliminating individuals that do not meet the standards, ensuring that the offspring bred are equal to or better than the previous generation in the whole breeding process, and finally acquiring excellent varieties; and step IV, promoting and popularizing the improved varieties of black goats through artificial insemination, embryotransfer and genetic engineering to speed up the expansion of improved variety population and the speed of population gene improvement.

Description

technical field [0001] The invention belongs to the technical field of animal reproduction and breeding, and in particular relates to a method for purifying and rejuvenating Yimeng black goats. Background technique [0002] Yimeng black goat is an excellent local breed in Shandong Province. It is a multi-purpose breed of meat, cashmere, wool and leather formed under the natural conditions of mountainous areas. It belongs to the dual-purpose sheep of cashmere, wool and meat. The meat of Yimeng black goat is rich in nutrition, containing 13.3% protein, 4.6% fat and 367 calories. Mutton is soft and easy to digest. Generally, healthy people can digest more than 90% of crude protein and more than 98% of fat in mutton. Yimeng black goat meat is tender, evenly red in color, with little mutton smell, and it tastes fragrant but not greasy when eaten. It contains 2 times more fat than beef, more than 1 times more calories than beef, 50% more calcium than beef, similar to pork, more ...

AI Technical Summary

Problems solved by technology

[0003] The number of existing black goats is small, because of their slow growth rate and low lambing rate, one litter a year, up to two litters, and basically only one litter per litter, which is the most significant shortcoming of Yimeng Mountain black goats

And the survey shows that the parents of black goats are mostly hybrids, and there are basically no purebred black goats for meat. There are also hybrids introduced from other places, but the production performance is low and the economic benefits are poor