In vitro embryo production in buffalo (Bubalus bubalis) using sexed sperm and oocytes from ovum pick up
文献类型: 外文期刊
作者: Liang, X. W. 2 ; Lu, Y. Q. 1 ; Chen, M. T. 2 ; Zhang, X. F. 2 ; Lu, S. S. 1 ; Zhang, M. 1 ; Pang, C. Y. 2 ; Huang, F. X.; 1 ;
作者机构: 1.Guangxi Univ, Anim Reprod Inst, Guangxi Key Lab Subtrop Bioresource Conservat & U, Nanning 530004, Peoples R China
2.Chinese Acad Agr Sci, Guangxi Buffalo Res Inst, Nanning 530001, Peoples R China
关键词: buffalo;sexed sperm;in vitro embryo production;OPU;IVF
期刊名称:THERIOGENOLOGY ( 影响因子:2.74; 五年影响因子:2.93 )
ISSN: 0093-691X
年卷期: 2008 年 69 卷 7 期
页码:
收录情况: SCI
摘要: The objective was to explore the use of sexed sperm and OPU-derived oocytes in an IVP system to produce sex-preselected bubaline embryos. Oocytes were recovered from 20 fertile Murrah and Nili-Ravi buffalo cows by repeated (twice weekly) ultrasound-guided transvaginal ovum pick up (OPU), or by aspiration of abbatoir-derived bubaline ovaries, and subjected to IVF, using frozen-thawed sexed or unsexed bubaline semen. On average, 4.6 oocytes were retrieved per buffalo per session (70.9% were Grades A or B). Following IVF with sexed sperm, oocytes derived from OPU had similar developmental competence as those from abattoir-derived ovaries, in terms of cleavage rate (57.6 vs. 50.4%, P = 0.357) and blastocyst development rate (16.0 vs. 23.9%, P = 0.237). Furthermore, using frozen-thawed sexed versus unsexed semen did not affect rates of cleavage (50.5 vs. 50.9%, P = 0.978) or blastocyst development (15.3 vs. 19.1 %, P = 0.291) after IVF using OPU-derived oocytes. Of the embryos produced in an OPU-IVP system, 9 of 34 sexed fresh embryos (26.5%) and 5 of 43 sexed frozen embryos (11.6%) transferred to recipients established pregnancies, whereas 7 of 26 unsexed fresh embryos (26.9%) and 6 out of 39 unsexed frozen embryos (15.4%) transferred to recipients established pregnancies. Eleven sex-preselected buffalo calves (10 females and one male) and 10 sexed buffalo calves (six females and four males) were born following embryo transfer. In the present study, OPU, sperm sexing technology, IVP, and embryo transfer, were used to produce sex-preselected buffalo calves. This study provided proof of concept for further research and wider field application of these technologies in buffalo. (c) 2008 Published by Elsevier Inc.
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