In April, the frequencies of oocyte stages were 90.5% primary oocytes; 2.6% early vitellogenic, 4.2% late vitellogenic and 2.6% atretic
But in grafted ovaries it was detected mostly in granulose cells of healthy and atretic
Histological evaluations determined fractions of gonads with reproductive acini containing mature and/or developing gametes, acini containing atretic
, resorbing gametes, gill filaments without cilia, kidney diverticula cells containing lipofuscin, and digestive cells of digestive glands (termed "digestive cells" hereafter) with condensation of cytoplasm.
The most remarkable of these anomalies were cerebellar folial disorganisation, temporal lobe hypoplasia, ventriculomegaly, occipital encephalocoele, atretic
encephalocoele, callosal dysgenesis, periventricular and subcortical heterotopia and hypomyelination.
The absence of small males, presence of atretic
oocytes and brown bodies in testes of mature males, and both developed ovarian and testicular tissues in the gonads of five transitional fish provided evidence of protogynous hermaphroditism.
Histogenesis of atretic
ovarian follicles in a seasonally breeding bird.
The mRNA expression of related genes was measured by semi-quantitative RT-PCR in the granulosa layers of the preovulatory follicle (PRF: F1, F2 ...) and follicular layers of the small yellow follicle (SYF), large white follicle (LWF) and atretic
Every tenth section (60 [micro]m apart) of the entire ovary was analyzed to evaluate the numbers of secondary, tertiary, and atretic
They also illustrated that a neck pouch was more likely to be associated with a long atretic
There was one preovulatory follicle and many atretic
Intra-operatively, a sliding hernia of right side revealed an atretic
ovary with a 5x3cm congested cyst and a 12cm long rudimentary fallopian tube [Figure 2].
Gonads were classified as undifferentiated, early developed, late developed, ripe, partially spawned, spent, and reabsorbed (atretic
), as proposed by Arellano-Martinez et al.