Results 261 to 270 of about 25,757 (296)

Intrafollicular effect of IGF1 on development of follicle dominance in mares

Animal Reproduction Science, 2008
The effect of an injection of a supraphysiologic dose of rhIGF1 into the second-largest ovarian follicle (F2) at the expected beginning of deviation (F1, > or =20 mm; Day 0) on development of dominance by F2 was studied in mares (n=16; controls, n=8). F1 became dominant (> or =28 mm) in 8 of 8 and 15 of 16 follicles in the controls and treated groups ...
O J, Ginther, E L, Gastal, M O, Gastal, M A, Beg   +3 more
openaire   +2 more sources

Decremental follicle-stimulating hormone and dominant follicle development during the normal menstrual cycle

Fertility and Sterility, 1995
To study the relationship between decreasing serum FSH levels in the follicular phase of the normal menstrual cycle and follicle development by means of transvaginal sonography and E2 production.Daily blood samples were taken and transvaginal sonography was performed every other day in 16 normal regularly cycling female volunteers.Serum levels of FSH ...
E J, van Santbrink, W C, Hop, T J, van Dessel, F H, de Jong, B C, Fauser   +4 more
openaire   +2 more sources

EFFECT OF DOMINANT FOLLICLE ABLATION ON OVARIAN FOLLICLE COUNT IN SAHIWAL CATTLE

Indian Journal of Veterinary and Animal Sciences Research
The present study was conducted to investigate the effect of dominant follicle ablation on follicle count in Sahiwal cattle. All the selected donor animals were randomly divided into two equal groups. Donor cows in group 1(n=10) were subjected to dominant follicle(s) ablation, donor cows in group 2(n=10) without ablation and both groups were ...
null P. Vamsi Krishna, null L.S.S. Vara Prasad Reddy, null B.R. Naik, null M. Kalyana Chakravarthi, null K. Veera Bramhaiah, null A.V.N. Sivakumar, null N. Venkata Krishna   +6 more
openaire   +1 more source

Atresia of the dominant ovarian follicle in cattle

2009
During each bovine estrous cycle, two to three dominant follicles (DFs) develop. The DF that develops at the time of corpus luteum (CL) regression ovulates. The first or second DF reaches an ovulatory size, and is capable of ovulation during the luteal phase, but undergoes morphological and functional atresia, probably due to a lack of high frequency ...
openaire   +1 more source

The dominant ovarian follicle

Fertility and Sterility, 1982
Edward E. Wallach, Gary D. Hodgen
openaire   +1 more source

Role of diameter differences among follicles in selection of a future dominant follicle in mares.

Biology of reproduction, 1998
Follicles > or = 5 mm were ablated in pony mares by a transvaginal ultrasound-guided technique on Day 10 (ovulation = Day 0). Follicle emergence (at 15 mm, experiment 1; at 6 mm, experiment 2) and development of the new wave was monitored by transrectal ultrasound.
E L, Gastal, M O, Gastal, D R, Bergfelt, O J, Ginther   +3 more
openaire   +1 more source

Differentiation of dominant versus subordinate follicles in cattle.

Biology of reproduction, 2001
Selection of a dominant follicle, capable of ovulating, from among a cohort of similarly sized follicles is a critical transition in follicular development. The mechanisms that regulate the selection of a species-specific number of dominant follicles for ovulation are not well understood.
J E, Fortune, G M, Rivera, A C, Evans, A M, Turzillo   +3 more
openaire   +1 more source

The dominant ovarian follicle

Fertility and Sterility, 1983
openaire   +2 more sources

Selection of the dominant follicle in cattle: role of estradiol.

Biology of reproduction, 2000
Involvement of estradiol in the deviation in growth rates between the two largest follicles of a wave was studied in 39 heifers. In experiment 1, the largest follicle remained intact in a control group and was ablated in five estradiol-treated groups when the largest follicle reached 8.5 mm or larger (expected beginning of deviation; Hour 0).
O J, Ginther, D R, Bergfelt, L J, Kulick, K, Kot   +3 more
openaire   +1 more source

Dominant ovarian follicle

2011
Yuranga Weerakkody, Craig Hacking, Henry Knipe   +2 more
openaire   +1 more source