scholarly journals Ovarian follicular development in the unilateral ovariectomized rat

2005 ◽  
Vol 4 (1) ◽  
pp. 89-92
Author(s):  
Satosi Kagabu ◽  
Motoaki Umezu
Keyword(s):  
Follicular Development ◽  
Ovariectomized Rat ◽  
Ovarian Follicular Development

OVARIAN FOLLICULAR DEVELOPMENT LEADING TO FIRST OVULATION AND ACCOMPANYING GONADOTROPHIN LEVELS AS STUDIED IN THE UNILATERALLY OVARIECTOMIZED RAT

1982 ◽  
Vol 92 (3) ◽  
pp. 341-349 ◽  
Author(s):  
H. M. A. MEIJS-ROELOFS ◽  
P. OSMAN ◽  
P. KRAMER
Keyword(s):  
Follicular Development ◽  
Ovariectomized Rat ◽  
Follicular Growth ◽  
Developmental Sequence ◽  
Unilateral Ovariectomy ◽  
Clear Tendency ◽  
Paired Control ◽  
Definite Pattern ◽  
Ovarian Follicular Development ◽  
Follicular Dynamics

Ovarian follicular development was studied in the rat during a 15-day period preceding first ovulation. Ovaries were obtained by unilateral ovariectomy performed at various ages and the rats were allowed to live until the day after first ovulation. The timing of this ovulation was compared with that in unoperated, paired control rats of the same age. For estimation of gonadotrophin levels, blood was taken from the paired control rats at the time when experimental rats were unilaterally ovariectomized. There was no evidence that unilateral ovariectomy had any influence on the timing of first ovulation. Therefore the ovaries obtained could be dated in relation to first ovulation, and follicular growth during the final prepubertal period could thus be studied in a genuine developmental sequence. Results revealed that follicular growth leading to first ovulation starts at ±8 days before this ovulation; follicular processes taking place are comparable to those found during the adult 5-day cycle but proceed more slowly. Gonadotrophin concentrations accompanying the follicular dynamics and measured at 11·00 h, showed a clear tendency for FSH concentrations to decrease with increasing age, i.e. approaching first ovulation. Concentrations of LH did not show a definite pattern and were generally low, although in some individual rats relatively high LH values (> 100 μg/l) were found in the period of 5–3 days before first ovulation.

Buserelin overcomes the effect of the corpus luteum on ovarian follicular development in postpartum cycling cows

1995 ◽  
Vol 39 (3) ◽  
pp. 183-192 ◽  
Author(s):  
H. Twagiramungu ◽  
L.A. Guilbault ◽  
J.G. Proulx ◽  
R. Ramkumar ◽  
J.J. Dufour
Keyword(s):  
Corpus Luteum ◽  
Follicular Development ◽  
Ovarian Follicular Development

Dynamics of ovarian follicular development in cattle following hysterectomy and during early pregnancy

1991 ◽  
Vol 8 (2) ◽  
pp. 223-234 ◽  
Author(s):  
W.W. Thatcher ◽  
M.A. Driancourt ◽  
M. Terqui ◽  
L. Badinga
Keyword(s):  
Early Pregnancy ◽  
Follicular Development ◽  
Ovarian Follicular Development

Ovarian follicular development associated with embryonic mortality during early pregnancy in cattle

1988 ◽  
Vol 29 (1) ◽  
pp. 256
Author(s):  
L.A. Guilbault ◽  
F. Grasso ◽  
G.L. Roy ◽  
S. Lapierre
Keyword(s):  
Early Pregnancy ◽  
Follicular Development ◽  
Embryonic Mortality ◽  
Ovarian Follicular Development

Ovarian follicular development during the follicular phase of oestrous cycle in manchega ewes with different ovulation rate

1996 ◽  
Vol 45 (1) ◽  
pp. 299 ◽  
Author(s):  
A.Gómez Brunet ◽  
A.López Sebastián ◽  
A.González de Bulnes ◽  
J.Santiago Moreno ◽  
M.García López
Keyword(s):  
Follicular Development ◽  
Follicular Phase ◽  
Oestrous Cycle ◽  
Ovulation Rate ◽  
Ovarian Follicular Development

scholarly journals Ovarian follicular development in mink (Mustela vison)

Reproduction ◽  
1994 ◽  
Vol 100 (2) ◽  
pp. 583-590 ◽  
Author(s):  
D. A. Douglas ◽  
R. A. Pierson ◽  
B. D. Murphy
Keyword(s):  
Follicular Development ◽  
Mustela Vison ◽  
Ovarian Follicular Development
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