Folliculogenesis and Oocyte Quality in Awassi Sheep
نویسندگان
چکیده
منابع مشابه
OCT4 and the acquisition of oocyte developmental competence during folliculogenesis.
The role that the transcription factor OCT4 plays during oocyte growth is yet unknown. In this review, we summarise the data on its potential role in the acquisition of oocyte developmental competence in the mouse. These studies describe the presence in MII oocytes and 2-cell embryos of an OCT4 transcriptional network that might be part of the molecular signature of maternal origin on which the...
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Primordial ovarian follicles in mice form when somatic cells surround individual oocytes. We show that lack of Nobox, an oocyte-specific homeobox gene, accelerates postnatal oocyte loss and abolishes the transition from primordial to growing follicles in mice. Follicles are replaced by fibrous tissue in female mice lacking Nobox in a manner similar to nonsyndromic ovarian failure in women. Gene...
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A total of 423 blood samples were collected (during 2009 and 2010) from all the ram holdings at three major Jordanian governmental Awassi breeding stations (Al-Khanasry, Al-Mushairfa and Al-Fjaje) and two private flocks. All blood samples were screened for the presence of mutations at the CNGA3 gene (responsible for day blindness in Awassi sheep) using RFLP-PCR. The day blindness mutation was d...
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This study was conducted in the Animal Farm, College of Agriculture, University of Baghdad, from march to may 2013, to clarify the effect of subcutaneous vitamin C injection on semen characteristics of Awassi rams. Six rams (1.5-2 years old) were randomly divided into three groups of 2 rams. Rams in T1and T2 were subcutaneously injected, every other day with dose of 50 and100 mg/kg body weight ...
متن کاملDifferential FSH exposure in preantral follicle culture has marked effects on folliculogenesis and oocyte developmental competence.
BACKGROUND We investigated at what stage early cultured preantral mouse follicles become dependent on a minimal effective FSH dose (10 mIU/ml) and analysed the influence of implementing FSH at several time-points during in vitro culture. METHODS Two-layered mouse follicles were cultured for 12 days under seven different FSH exposure regimens and ovulated on day 13 by hCG/EGF. Ovulated cumulus...
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ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2015
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fasebj.29.1_supplement.lb659