Assembly for cervical dilatation before cattle embryo transfer

Abstract

The invention provides an assembly for cervical dilatation before cattle embryo transfer. The assembly comprises a jacket body with an inner cavity, a support frame assembly is arranged in the jacket body and provided with a dilatation assembly capable of swelling by absorbing water and can be pushed by an ejector rod to drive the dilatation assembly to move in the axial direction of the jacket body, and the jacket body is provided with a control assembly which can control the support frame assembly and the jacket body to be in a separable state or an inseparable state. According to the assembly, an embryo can more easily enter the uterus through the cervix uterus during embryo transfer, therefore, the success rate of embryo transfer is increased, the reproductive system infection rate caused by embryo transfer is decreased, stress responses of cattle are reduced, and the convenient operation advantage is achieved.

Description

technical field [0001] The invention belongs to the technical field of embryo transplantation, and relates to a cervical dilation component, in particular to a cervical dilation component before bovine embryo transplantation. Background technique [0002] Bovine embryo transfer is a new technology developed after artificial insemination, and has become an important means to expand the excellent genes of excellent female animals. At present, the development of bovine embryo transfer technology has matured, and the success rate of transfer is basically stable. Domestic animal embryo transfer technology, especially bovine embryo transfer technology has developed rapidly in recent years, and has basically met the conditions for industrial application and has broad development prospects. At present, high-tech enterprises focusing on embryo transfer technology are also developing rapidly all over the country. The promotion of bovine embryo transfer technology has reached a certai...

AI Technical Summary

Problems solved by technology

[0004] The recipient cattle used in domestic bovine embryo transfer generally choose local cattle that are not too large. According to data reports: using young cattle that have not given birth to calves and light-mouthed cattle that have given birth to one or two litters as recipient cattle, the conception rate It will be higher, but these cows generally have a slender cervix, and the embryo transfer time is generally 7-8 days after the cow is in estrus. Unskilled personnel, even those who are very skilled in operation, have difficulty inserting the embryo transfer gun through the cervix into the uterus for young cattle and others, and have to use thicker metal expansion rods to repeatedly poke and expand, especially It is easy to cause bleeding damage to the cervix, and then cause inflammation of the cervix and uterus, which not only affects the success rate of sub-transplantation, but also easily affects the health of the reproductive system of cattle

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