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A simple method for assessing hyaluronic acid production by cumulus-oocyte complexes
oocyte meiotic maturation cumulus expansion
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2016/7/6
The cumulus expansion of cumulus-oocyte complex (COC) is an essential regulating process of oocyte maturation and as such it is a possible biomarker of the in vitro maturing oocytes quality. Cumulus e...
Male pronucleus formation after ICSI: effect of oocyte cysteine or sperm Triton X-100 treatments
porcine assisted reproductive technology
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2015/7/7
While no cleavage was observed in the
CYS group, no significant differences in the cleavage rate were observed between control (21.3%) and TX (10.5%)
groups. In summary, and under our conditions, ...
Expression and localization of nitric oxide synthase isoforms during porcine oocyte growth and acquisition of meiotic competence
pig oocyte growth meiotic competence
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2015/6/8
Reproduction biotechnologies depend on the use of fully meiotically competent oocytes. Growing oocytes without full meiotic competence are an interesting potential source due to their quantity, but th...
Superovulation following follicular synchronization with GnRH at random stages of the oestrous cycle in heifers: oocyte competence and in vitro embryo production
heifer oocyte GnRH oocyte competence
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2015/6/8
The objective of this study was to develop a superovulatory program based on the synchronization of follicular waves with GnRH which could be applied regardless of the stage of the oestrous cycle. In ...
The influence of cadmium on Prussian carp oocyte maturation, development of eggs and hatching
heavy metals oocyte maturation steroid hormones embryonic development hatching enzyme
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2015/6/5
The influence of cadmium (Cd) on the last stage of Prussian carp (Carassius auratus gibelio B.) oocyte maturation and embryonic development was investigated. The (postvitellogenic) oocytes were incuba...
Induction of final oocyte maturation in Cyprinidae fish by hypothalamic factors: a review
reproductive dysfunction ovulation luteinizing hormone
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2015/4/2
Gonadotropin-releasing hormone in Cyprinidae as in other Vertebrates functions as a brain signal which stimulates the secretion of luteinizing hormone from the pituitary gland. Two forms of gonadotrop...