1. In vitro production of sex preselected cattle embryos using a monoclonal antibody raised against bull sperm epitopes
- Author
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Myeong-Don Joo, M.M.R. Chowdhury, Xu Lianguang, Bun-Young Park, Fahmida Afrin, Rami Kong, Il-Keun Kong, Ayman Mesalam, Hyun-Tae Lim, and Jong-In Jin
- Subjects
Male ,endocrine system ,X Chromosome ,Sperm sorting ,Embryonic Development ,Semen ,Cell Separation ,Fertilization in Vitro ,Biology ,Andrology ,Embryo Culture Techniques ,03 medical and health sciences ,Epitopes ,0302 clinical medicine ,Endocrinology ,Food Animals ,Y Chromosome ,medicine ,Animals ,Blastocyst ,Sex Preselection ,reproductive and urinary physiology ,Sperm motility ,030219 obstetrics & reproductive medicine ,Zygote ,urogenital system ,0402 animal and dairy science ,Antibodies, Monoclonal ,Embryo ,04 agricultural and veterinary sciences ,General Medicine ,Embryo Transfer ,Embryo, Mammalian ,040201 dairy & animal science ,Sperm ,Spermatozoa ,Embryo transfer ,medicine.anatomical_structure ,Oocytes ,Animal Science and Zoology ,Cattle ,Female - Abstract
Sex preselection has always generated great interest among livestock producers. Among the prevalent sperm sorting methods, there is much evidence that sex sorting has a negative effect on sperm quality with an altered pattern of sperm motility, ultimately reducing the period of cell viability. In this study, we have established a new approach for the preselected embryo production by using WholeMom®; a monoclonal antibody developed against bull sperm epitopes for simple and easy separation of X- and Y-sperm. There were no significant differences (P 0.05) in the percentage of presumptive zygotes between the control and the X-sperm sorted group, but there was a difference in early cleaving embryos with there being 81.2 ± 1.4%, 78.3 ± 1.0%, and 66.7 ± 1.1% for the control, X-sperm sorted, and Y-sperm sorted groups, respectively. Similarly, the percentage of embryos that developed to the blastocyst stage (Day 7) were also greater (P 0.05) in the control and X-sperm sorted group compared with the Y-sperm sorted group being 34.8 ± 1.0%, 32.1 ± 0.8%, and 23.7 ± 1.0% in the control, X-sperm sorted, and Y-sperm sorted groups, respectively. Furthermore, B-SRY F2 and B-SRY R2 gene expression data indicated there was a detection accuracy of 81.0% for the female embryos and 72.5% for the male embryos produced in vitro. In conclusion, in cattle in vitro derived embryo production using pre-selected sexed semen and subsequent embryo transfer can facilitate the mass production of individuals that are genetically superior.
- Published
- 2018