简化激素方案:单次FSH注射联合CIDR与苯甲酸雌二醇诱导卵泡波对日本黑牛OPU-IVP及胚胎移植结局的影响
Effects of a simplified hormonal treatment comprising a single FSH administration and induction of follicular wave emergence by CIDR and estradiol benzoate prior to ovum pick-up on IVP and embryo transfer outcomes in Japanese Black cows
摘要
研究在日本黑牛中评估一种简化短程激素方案:采卵前5天用孕酮释放装置(CIDR)联合苯甲酸雌二醇同步卵泡波,采卵前2天单次注射FSH,以改善卵母细胞质量及IVP/ET结局。共12头牛,处理组与未处理组各6头。处理组优质卵母细胞比例(63.0% vs 47.5%)、每次OPU可移植囊胚数(4.0 vs 2.6)及IVP囊胚移植后妊娠率(55.6% vs 19.0%)均显著更高(P<0.05)。结论提示该仅需两次操作的方案可改善日本黑牛OPU-IVP与ET结局。
原文摘要
We evaluated a simple, short hormonal protocol comprising follicular wave synchronization using a progesterone-releasing device and estradiol benzoate 5 days before ovum pick-up (OPU) followed by a single follicle-stimulating hormone injection 2 days before OPU to improve oocyte quality and outcomes of in vitro embryo production (IVP) and embryo transfer (ET) in Japanese Black cows. A total of 12 cows were used in this study, with 6 cows in each of the Treatment and Non-Treatment groups. The proportion of good-quality oocytes, transferable blastocysts per OPU session, and pregnancy rate following ET of IVP-derived blastocysts were all higher in the Treatment group than in the Non-Treatment group (63.0 ± 7.7% vs. 47.5 ± 7.6%, 4.0 ± 0.7 vs. 2.6 ± 0.5, and 55.6% vs. 19.0%, respectively; P < 0.05). These results demonstrate that the present protocol, which requires only two procedures before OPU, effectively improves OPU-IVP and ET outcomes in Japanese Black cows.
推荐理由:该方案操作简化且同时改善卵母细胞质量、囊胚产量与移植妊娠率,对牛OPU-IVP实验室有直接参考价值;但样本量小(每组6头)且为动物研究,外推到人类ART需谨慎。
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