The ovarian atretic
process in female striped mullet was characterized by four distinct stages that followed a very similar progression to that described for the northern anchovy (Hunter and Macewicz, 1985).
oocytes were present in low proportions from March to April and in high proportions in May.
These fish were chosen because histological examination of their other ovarian lobe demonstrated that the ovaries were in atretic
state 0 or early state 1, i.
From the practical standpoint, dealing with atretic
losses that may continue into the spawning period is much less important for L.
Like stage-II ovaries, stage-III ovaries can, but do not necessarily, contain brown bodies or atretic
oocytes as evidence of probable prior spawning.
2005) reported that atretic
follicles in the ovarian cortex of prepubertal gilts were observed in the treatment with 40 [micro]g ZEA/kg body weight.
follicles showed significant increase that is consistent with the results of Gul (2009) and also Sandra et al (2000) that studied the effects of waves with low intensity and 33 and 50 Hz on follicles such In vitro.
advanced stage oocytes) were used to designate females as immature, mature resting, mature active, or postspawning (classes 1-4, respectively).
Sections cut from paraffin-embedded ovaries were stained with hematoxylin and cosin to count preovulatory follicles, corpora lutea, antral follicles, and atretic
follicles using a light microscope as described by Parborell et al.
138) In some cases, an atretic
ureter may accompany an atrophic kidney with minimal renal parenchyma.
During the winter season, adult females exhibited only primary growth oocytes (chromatin nucleolar oocytes and perinucleolar oocytes) and atretic
follicles (Figure 1D).
Nasal cerebral heterotopia: Nasal atretic