Ovarian follicular dynamics during anoestrus in ewes

Ovarian Follicular Atresia of Ewes during Spring Puerperium

The distribution of healthy and atretic follicles on the ovarian surface of improved Valachian ewes 17, 24, and 32 days postpartum is reported in this study. The number of healthy follicles was higher on day 24 postpartum and their mean diameter tended to increase to day 32 (P < 0.05) with the greatest diameter of 5 mm. 78-81% of atretic follicles ≥3 mm in diameter was observed where apoptosis ...

Ovarian follicular dynamics during anoestrus in Anglo-Nubian and Saanen goats raised in tropical climate. Tropical Animal

Ovarian follicular dynamics after cauterization of the dominant follicle in anestrous ewes.

An experiment was conducted to ascertain if follicles could reach ovulatory size after the largest follicle (dominant) has been removed at different times during a progestin treatment in anestrous ewes, and secondly to determine if these new follicles could respond to an hCG-induced ovulation and have similar function as corpora lutea. Mature crossbred sheep (n=44) in anestrous were treated wit...

Control of gonadotrophin release in Scottish Blackface and Finnish Landrace ewes during seasonal anoestrus.

The patterns of LH and FSH secretion were measured in 4 experimental groups of Finnish Landrace and Scottish Blackface ewes: long-term (18 months) ovariectomized ewes (Group 1), long-term ovariectomized ewes with an oestradiol implant, which has been shown to produce peripheral levels of approximately 5 pg/ml (Group 2), long-term ovariectomized ewes with an oestradiol implant for 18 months whic...

Ovarian follicular dynamics during estrous cycle and its aberrations during certain reproductive disorders in buffalo

Ovarian follicular development in the species follows a wave dynamics involving mostly 2wave or 3-wave cycles. Although there are still large gaps in our understanding of the etiopathogenic mechanisms underlying reproductive disorders in buffalo, available literature suggests alterations in ovarian dynamics at one or more stages of follicular development. This article gives a brief account of t...