THE EARLY DIAGNOSIS METHOD OF DETECTION OF PREGNANCY IN COWS
Abstract
The article deals with the possibility of early diagnosis of pregnancy in cows by the level of progesterone in the blood by 19-21 days after insemination, and the mechanism of action of prostaglandin F2. analogue at stimulation of ovulation. 500 micrograms of oestrofan was injected to heifers of experimental group before insemination. Second blood samples was received at 19-21 days after insemination for study the possibility of early diagnosis of pregnancy. After 60-75 days after insemination, all heifers were was rectally screened for pregnancy. The studies show that the accuracy of diagnosis of pregnancy was 93.8% and non pregnancy - was 100%,- if the thresholds for the early diagnosis of pregnancy consider progesterone concentration . 1,30 ng / ml (non pregnancy) and more 1.30 ng / ml (pregnancy). Obviously, the injection oestrogen in hunting day resulted in a reduction of the residual concentration of progesterone and further promoted the release of luteotropic hormone by the pituitary gland and ovulation. Therefore, early diagnosis of pregnancy by measuring of progesterone in the blood would reduce the overhead on the barren animals.
About the Authors
V. A. Anzorov
Чеченский государственный университет
Russian Federation
Russian Federation
S. V. Morjakina
Чеченский государственный университет
Russian Federation
Russian Federation
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Review
For citations:
Anzorov V.A., Morjakina S.V. THE EARLY DIAGNOSIS METHOD OF DETECTION OF PREGNANCY IN COWS. Russian Journal of Veterinary Pathology. 2016;(1):43-46. (In Russ.)
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