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作 者:门红升[1] 季维智[1] 杨上川[1] 邹如金[1] 文际坤[1] 马峻[1] 何一梅 田保平[1]
机构地区:[1]中国科学院昆明动物研究所中-美灵长类生物学联合实验室
出 处:《Zoological Research》1998年第2期165-170,共6页动物学研究(英文)
基 金:云南省自然科学基金会
摘 要:胚胎的质量和受体牛的质量是影响胚胎移植受体牛妊娠率的两个非人为因素。近年来人们在提高胚胎的质量和建立旨在提高受体牛质量的受体牛选择标准方面做了大量的工作,使胚胎移植工作中受体牛的妊娠率有了很大提高。本文从超数排卵、体外受精两种胚胎生产方法中如何提高胚胎的质量以及受体牛质量控制等方面介绍了有关研究概况和发展动态。? Recent attempts to improve the recipients' pregnancy rates via the improvement of embryo quality and the proper selection and management of recipients were discussed in this review.Embryo quality can be improved by two distinct pathways with regard to their origin.The quality of embryos produced by superstimulation can be improved by optimizing the dosage regimens and types of gonadotropin preparations and,recently,by monitoring the follicular dynamics and the quality of embryos produced by in vitro maturation,fertilization and development can be improved by co-culture with oviductal or granulosa cells,providing necessary nutrients,growth factors as well as optimizing the in vitro culture environment.The quality of the recipients can be guaranteed by following current guidelines regarding the genotypes,health,nutrition and physiology for proper selection and management of recipients.The future research trends in this endeavor were also considered in this review.
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