Interrelation of the difference of vaginal temperatures of cows and the sexual cycle
M. G. Samynina, V. N. Khmelkov
In article the interrelation of changes of difference of vaginal temperatures and a sexual cycle of cows is determined. At a spontaneous sexual cycle during a follicular phase the difference of vaginal temperatures does not exceed a level 0,08 ?Ñ during 3 days before a standing of sexual heat at cows with a high degree of reliability (Ð ? 0,999). It is shown, that at induced estrus after hormonal processing of cows on a superovulation this parameter tends to decrease, but during two days before heat does not exceed the above-stated level after introduction of Prostaglandin.
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