Seasonal variations in ovarian follicular growth in sheep and goats of Himachal Pradesh

7-Title: Seasonal variations in ovarian follicular growth in sheep and goats of Himachal Pradesh

Authors: JK Agrawal, N Kumar, MM Singh, A Sharma and P Kumar

Source: Ruminant Science (2015)-4(1):33-35.

How to cite this manuscript: Agrawal JK, Kumar N, Singh MM, Sharma A and Kumar P (2015). Seasonal variations in ovarian follicular growth in sheep and goats of Himachal Pradesh. Ruminant Science 4(1):33-35.

Abstract

The study was conducted to monitor the seasonal variations in the ovarian follicular growth in sheep (n=267) and goats (n=371). As a result of this investigation, out of total sheep genitalia examined, the mean number of corpora lutea were significantly higher (p<0.05) during breeding (0.64±0.06) than in non-breeding (0.39±0.06) season. Whereas, in goats, the mean number of large follicles and corpora lutea were significantly higher (p<0.05) during breeding (2.56±0.10 Vs 0.76±0.05, respectively) than in non-breeding (1.72±0.15 Vs 0.55±0.07, respectively) season. In sheep, the mean number of large follicles were significantly higher (p<0.05) (1.19±0.10 Vs 0.81±0.06) in ovaries having corpora lutea than the ovaries without corpora lutea. In goats, the mean number of small and large follicles was slightly higher in ovaries having corpora lutea. It was concluded that more number of large follicles were present in ovaries having corpora lutea and also the number of follicles and corpora lutea were significantly higher in breeding season than in non-breeding season in both species.

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