Embryo sex interference preparation for sheep as well as preparation method and application thereof

Abstract

The invention relates to an embryo sex interference preparation for sheep. The embryo sex interference preparation is prepared from the following components in parts by mass: 1-3 parts of vitamin B12,1-3 parts of vitamin C, 1-2 parts of gentamicin sulfate, 0.8-2.2 parts of oxytocin and 1-2 parts of glucose liquid. The preparation has the advantages that the activity of Y-chromosome sperms of thesheep can be obviously inhibited, capacitation of X-chromosome sperms can be promoted, the movement of the X-chromosome sperms can be promoted, the activity ability of the X-chromosome sperms can be enhanced, the survival time of the X-chromosome sperms can be prolonged, the combination probability of the X-chromosome sperms with eggs can be increased, and therefore the sex of embryos can be interfered and influenced, and finally the effect of improving the proportion of female lambs can be achieved.

Description

technical field [0001] The invention relates to the technical field of animal husbandry, in particular to an embryo sex-interfering preparation for sheep, a preparation method and an application thereof. Background technique [0002] Animal husbandry is already a major pillar industry of agriculture and agricultural industrialization, especially the sheep industry has become the second largest animal husbandry industry after the dairy industry. The breeding of sheep is the first job faced by all farms and runs through it all. Generally, one breeding ram can meet the breeding needs of about 100 ewes, that is to say, in most cases, the value of ewes is higher than that of rams, and people expect more ewes to be bred. The male and female lambs generally account for 50% of each gender, and sometimes the proportion of rams is greater than that of ewes, which greatly affects the economic benefits of the farm. Thereby people expect a kind of technology that can improve the ratio ...

AI Technical Summary

Problems solved by technology

[0005] 1) High price, low benefit: The price of each sex-controlled semen for sheep is about 300 yuan, and the artificial insemination is one at a time, and the pregnancy rate is about 30%, so one ewe lamb (90% possibility) The cost is about 1,000 yuan, but the price of most ewe lambs (such as dairy goats) is about 500-800 yuan, so most people will not choose such products

[0006] 2) Low pregnancy rate: The number of sperm in each sexually controlled semen straw is about 2 million, while the normal semen straw contains 20 million sperm. The number of sperm is small, so the fertilization rate is low, making the pregnancy rate low reach about 30%

[0007] 3) Sperm thawing and artificial insemination require high technology, which is difficult for ordinary small farms to use

[0008] Therefore, this product cannot be used in the breeding and production of large-scale sheep flocks. In addition, there is no similar technology or product that can be used to increase the proportion of ewes in sheep

[0009] In 2010, the inventor developed a gender-disrupting preparation for cows, and applied for a national invention patent (CN102526701B), but this interference preparation is not suitable for sheep. It is extremely important to use gender disrupting agents

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