D.V.S. Tegza А.,

Master Yachnik L.

A.Baytursynov Kostanay State University , Kazakhstan

THE MAIN CAUSES OF REPRODUCTIVE DISORDERS IN COWS

Successful reproduction and herd livestock productivity growth largely prevent infertility and barrenness, causing the economy bear huge losses. Reproduction of cattle is an important part of success in cattle. Unfortunately, the great economic losses in the industry infertility causes cows [1, 2]. One of the main forms of infertility infertility cows is operational. In the available literature contained information about the different ways to eliminate the causes of the various diseases of genitals [3, 4].

Based on the analysis of literature data, we concluded that the question of the causes of infertility cows continues to be important.

Based on this objective of our research was to identify the causes of culling animals with reproductive dysfunction in agricultural formations Kostanay region.

For the differential diagnosis of the causes of culling cows with reproductive disorders were taken sets of genitals from 60 cows with reproductive dysfunction.

On the basis of pathological studies have shown that the cause of violations of reproductive ability in 27 (or 87%) animals served as ovarian pathology and in 12 (38.7%) animals - uterine pathology. Furthermore, 64% of the animals met various combinations genital pathology.

So, in violation of ovarian function in cows could be seen simultaneously PGT (persistent corpus luteum) in the left ovary and sclerosis of the right ovary.

Also, one-third of the number of investigated sets of reproductive organs, the ovaries, both were marked pathological processes in the uterus.

Analysis of ovarian diseases of cows showed that in this group of diseases defeat one ovary occurred in 51.9%, the defeat of the two ovaries was observed in 48.1% of cows in the first place, it is a persistent corpus luteum (32.3%), followed by sclerosis ovarian (25.8), and. ovarian hypofunction (16.1%).

Based on the analysis of uterine pathology found that obesity is most common (45.2%), atony (19.4%), tumors in the uterus (12.9%).

Thus, based on the results of studies of biological material obtained from cows with reproductive dysfunction, found that:

The main cause reproductive disorders in cows in agricultural formations Kostanay region served as a violation of the function of the ovaries. Foremost among ovarian pathology should allocate a persistent corpus luteum formation.

Various combinations of pathology of the reproductive organs were observed in 64% of the surveyed animals.

Violation of reproductive ability in most animals caused by abnormalities in the reproductive organs in relation to obesity.

References

1. Kozlov V.G. Economic damage in the pathology of sexual organs in high-producing cows. // Experience training workers for Agricultural Abroad: scientific works М., 1992. - P.117-119.

2. Gavrilenko N.N. Operational form of infertility in cows / Gavrilenko N.N. // Scientific memoirs, book 199. Kazan, 2009. P. 250 – 255.

3. Gavrilenko N.N. Infertility in cows in the farms of the Far Eastern Federal District (causes and forms of infertility, diagnosis, prognosis, treatment and prevention), Kazan, 2011.- С. 28

4. Gavrilenko N.N. Stimulation of sexual function in cows are postpartum and infertile bulls-probes of different ages / Gavrilenko N.N. // Scientific memoirs, book 183. Kazan, 2006. –P.57-63.