UDC: 636.082.453.5
DOI: 10.36871/vet.zoo.bio.202201009

Authors

Anastasia K. Smirnova,
Ekaterina A. Smirnova,
Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin, Moscow, Russia
Seid-Fatima М. Borunova,
Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin, Moscow, Russia; All-Russian State Center for the Quality and Standardization of Medicines for Animals and Feed

Abstract

Currently, the implementation of modern methods of biotechnology reproduction is carried out simultaneously in several areas. One of them is the development of an accelerated reproduction of breeding stock based on the use of a sexed (same-sex) seed.
Sexed seed (sexedsemen) is the sperm of bulls of producers, divided by sex (bearing X- iU chromosomes), female offspring are born from X chromosomes, and male Y chromosomes [1].
The method of using sexed sperm and embryos in the reproduction of cattle is especially relevant, since in our country, as in the whole world, there is a large shortage of cattle.
Much attention is also paid to the acrosome, that is, the organoid of the front of the head of the male sex cell, which is an altered Golgi complex. This apical body contains hydrolases, they are needed to dissolve the egg shell during fertilization. But as a result of a violation of integrity by the acrosome, the possibility of artificial insemination is reduced. In this regard, there is a need to check spermodosis for a violation of the acrosome. By regularly conducting studies of the quality of imported sperm according to reproductive parameters, we will be able to reduce the amount of poorquality cryopreserved sperm, which means that in the future we will be able to carry out effective artificial insemination to maintain the gene pool without harming donor cows [3]. In this article, studies were conducted on the integrity of the acrosome and morphofunctional parameters of the sexed seed were established.

Keywords

sexed semen, abnormal sperm forms, cryopreservation, the acrosomt, violation of the acrosome