Yak reproductive capacity improvement method

Abstract

The invention relates to the field of livestock breeding and discloses a yak reproductive capacity improvement method. The method includes: breast feeding of newly born yak calves, foraging training and weaning training of yak calves at an age of three months or older, self-foraging training of weaned yak calves, feeding management of the weaned yak calves and female yak feeding management. The yak reproductive capacity improvement method has advantages that early weaning of the yak calves can be realized, adverse influences of factors such as stress, nutrition and lactation with calves on reproductive capacity of female yaks can be alleviated, postpartum body condition recovery of the female yaks can be promoted, and yearly reproduction can be realized.

Description

technical field [0001] The invention relates to the field of animal husbandry, in particular to a method for breeding yaks. Background technique [0002] Yaks are the main livestock species and important means of production and living in the pastoral areas of the Qinghai-Tibet Plateau. Long-term natural selection has created the physical structure and physiological characteristics of yaks that are suitable for the special alpine environment, forming reproductive characteristics that are different from other cattle species. Its gestation period is 250-260 days, and it has the ability to produce one child a year, but in fact, its reproductive level is generally only two years or three years. Female yaks are usually mated when they are 3-4 years old. The age of first mating is generally 3-3.5 years old, and some individuals are not mated until they are 4-5 years old. The sexual maturity of male yak is 3.5 years old. [0003] Due to the extensive management over the years, ya...

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Problems solved by technology

[0003] Due to the extensive management over the years, yaks have shown signs of "degeneration" such as smaller size, lower weight, low reproductive rate, weak disease resistance, and high mortality. The high-efficiency method is realized by controlling the breeding time control points, calving time control points, weaning time control points, and breeding supporting measures between the breeding, calving and weaning time control points. This method gives full play to the reproduction of female yaks Potential, achieved the technical effect of one production per year, but the growth and development of yaks has gone through multiple stages, and the nutritional requirements of different stages are different. If only by controlling the breeding time, calving time, weaning time and corresponding breeding supporting measures, It may cause other adverse effects on yaks; and the environmental conditions at different altitudes are different, and the forage materials and adaptability are also different. It is not practical to only limit the time point of their growth and development, especially above 4700 meters It is difficult to achieve a production of 1 year in Tibet using the above-mentioned technologies.

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