Influence of oocyte donor and embryo recipient conditions on cloning efficiency in dogs

胚胎移植 卵母细胞 胚胎 医学 男科 后代 妊娠率 怀孕 克隆(编程) 显著性差异 妇科 生物 内科学 遗传学 计算机科学 程序设计语言
作者
M J Kim,Hyun Jeong Oh,J E Park,Suk‐Yoon Hong,Jin‐Dan Kang,Ok Jae Koo,Sung Keun Kang,Goo Jang,B C Lee
出处
期刊:Theriogenology [Elsevier]
卷期号:74 (3): 473-478 被引量:24
标识
DOI:10.1016/j.theriogenology.2010.03.001
摘要

To determine factors that affect the efficiency of dog cloning by somatic cell nuclear transfer, the present study was performed to investigate 1) the effects of surgical history (non-operated/operated) and parity (nullipara/multipara) on the recovery of in vivo canine oocytes; 2) the effects of surgical history and parity of recipients on the pregnancy and delivery; and 3) the effects of synchronization state (AA, advanced asynchrony; SY, synchrony; RA, retarded asynchrony) between oocytes donor and recipient on the pregnancy and delivery. Oocyte recovery rate was significantly higher in non-operated dogs compared to operated dogs (93.8 vs. 89.6%, P < 0.05) and not different between nulliparous dogs and multiparous dogs. Delivery rate was also significantly higher in non-operated dogs compared to operated dogs (2.8 vs. 1.0%, P < 0.05) and in nulliparous dogs than multiparous dogs (3.0 vs. 1.7%, P < 0.05). Even though SY showed increased pregnancy and delivery rate (20.0% and 3.0%) compared to AA (15.0% and 2.0%) and RA (0.0% and 0.0%), there was no significant difference. In conclusion, we recommend non-operated dogs as experimental dogs and nulliparous dogs as recipient dogs to increase delivery rate after transfer of somatic cell nuclear transferred embryos, but further study is needed to find out appropriate synchrony status at the transfer.
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