Ces fluctuations des taux hormonaux ovariens sont correlees avec l'evolution du poids des ovaires (Fig.1) et le developpement des ovocytes
au cours du premier cycle reproductif de cette espece (Tail et al.
In fertilization, ovocyte
self-activation constitutes a basic injury located at the origin of life, which can be triggered by the concentration of molecules coming from cellular catabolism.
Fecundity estimates ranged from 19 x [10.sup.4] to 110 x [10.sup.4] ovocytes
per individual and the average of the 24 adults measuring 23 cm to 42 cm in length was 54 x [10.sup.4] ovocytes
These embryos have been obtained after the fusion of a Saolas cell nucleus to the cytoplasm from the ovocyte
of a filogenetically close species, such as cattle.
Sur la formation des lamelles annelees dans les ovocytes
de Mytilus edulis.
porcins sont les plus vulnerables a la deoxynivalenol mycotoxine pendant la formation du fuseau meiotique.
some spermatogonia or oogonia and small ovocytes
, sex differentiated.
"Since there is such a wide diversity in the abundance and size of the ovocytes
in the sexually mature young males of O.
This follicular development will determine the production and release of the first wave of mature ovocytes
during the initial ovulation in puberty, starting the fertile life of the female (Greenwald & Roy).
A Steinhausia-like infection in the ovocytes
of Sydney rock oysters Saccostrea commercialis.
According to Grotta and Lunetta (1980), the lower somatic growth in later stages could be related to higher energy expenditure by females in the production of ovocytes
and in the syntheses of yolk, and by the males in the production of sperm.
Previous studies have shown that this fish is a synchronous spawner (also known as a total or isochronal spawner), with two groups of different sized ovocytes
; the larger diameter group is released during the first spawning (Young et al., 1999).