Embryo transfer and sex determination following superovulated hinds inseminated with frozen-thawed sex-sorted Y sperm or unsorted semen in Wapiti (Cervus elaphus songaricus). 2011

Q H Gao, and H E Wang, and W B Zeng, and H J Wei, and C M Han, and H Z Du, and Z G Zhang, and X M Li
College of Animal Science, Tarim University, Alar, Xinjiang, China. gsy1997@126.com

The aim of this study was to evaluate embryo production in superovulated wapiti hinds inseminated with either Y-sorted or unsorted semen. Eighteen hinds were allocated to three treatment groups: AI following multiple ovulation (CIDR/FSH) with 10×10(6) Y-sorted frozen-thawed semen (Y group, n=6), or 10×10(6) and 100×10(6) unsorted frozen-thawed semen for the unsorted (n=6) and the control group (n=6). The embryos from the sixth day following insemination were collected and classified. Fifteen embryos from the unsorted or the control group, and four embryos from the Y group were sex determinated based on DNA analysis of the amelogenin gene. Twenty-one embryos from the Y group and 42 embryos from the unsorted or the control group were transferred into 21 and 42 synchronized recipients via standard procedures on 6th day post estrus, respectively. There were no significant differences in the number of recovered eggs, transferable embryos, degenerated embryos or unfertilized oocytes per hind among the three groups of the control (9.2±3.6, 4.7±1.9, 3.0±2.0, 1.5±1.4), the unsorted (8.2±1.9, 4.8±0.7, 1.7±1.0, 1.7±1.0) and the Y group (8.8±4.2, 4.2±1.8, 2.2±1.2, 2.5±2.1), respectively (P>0.05). The sex ratio of embryos from the Y group (4M/0F) was significantly (P<0.05) distinct from that of the unsorted and control group (8M/7F). The sex ratio of the offspring from sexed embryos (8M/0F) was deviated significantly (P<0.05) from that of the non-sexed embryos (11M/9F). In conclusion, the results suggested that the male embryos of predicted sex can be achieved with AI of sex-sorted cryopreserved sperm. PCR amplification using the amelogenin gene primers can be applied to DNA analysis of micro samples from wapiti embryo biopsies for sex identification. The male offspring can be produced after transferred with the male embryos of predicted sex.

UI MeSH Term Description Entries
D007315 Insemination, Artificial Artificial introduction of SEMEN or SPERMATOZOA into the VAGINA to facilitate FERTILIZATION. Artificial Insemination,Eutelegenesis,Artificial Inseminations,Eutelegeneses,Inseminations, Artificial
D008297 Male Males
D003670 Deer The family Cervidae of 17 genera and 45 species occurring nearly throughout North America, South America, and Eurasia, on most associated continental islands, and in northern Africa. Wild populations of deer have been established through introduction by people in Cuba, New Guinea, Australia, New Zealand, and other places where the family does not naturally occur. They are slim, long-legged and best characterized by the presence of antlers. Their habitat is forests, swamps, brush country, deserts, and arctic tundra. They are usually good swimmers; some migrate seasonally. (Walker's Mammals of the World, 5th ed, p1362) Deers
D004624 Embryo Transfer The transfer of mammalian embryos from an in vivo or in vitro environment to a suitable host to improve pregnancy or gestational outcome in human or animal. In human fertility treatment programs, preimplantation embryos ranging from the 4-cell stage to the blastocyst stage are transferred to the uterine cavity between 3-5 days after FERTILIZATION IN VITRO. Blastocyst Transfer,Tubal Embryo Transfer,Tubal Embryo Stage Transfer,Embryo Transfers,Transfer, Embryo,Transfers, Embryo
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012661 Semen The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma. Seminal Plasma,Plasma, Seminal
D012732 Sex Determination Analysis Validation of the SEX of an individual by inspection of the GONADS and/or by genetic tests. Sex Determination Techniques,Sex Determination Technics,Analyses, Sex Determination,Analysis, Sex Determination,Sex Determination Analyses,Sex Determination Technic,Sex Determination Technique,Technic, Sex Determination,Technics, Sex Determination,Technique, Sex Determination,Techniques, Sex Determination
D013094 Spermatozoa Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility. Sperm,Spermatozoon,X-Bearing Sperm,X-Chromosome-Bearing Sperm,Y-Bearing Sperm,Y-Chromosome-Bearing Sperm,Sperm, X-Bearing,Sperm, X-Chromosome-Bearing,Sperm, Y-Bearing,Sperm, Y-Chromosome-Bearing,Sperms, X-Bearing,Sperms, X-Chromosome-Bearing,Sperms, Y-Bearing,Sperms, Y-Chromosome-Bearing,X Bearing Sperm,X Chromosome Bearing Sperm,X-Bearing Sperms,X-Chromosome-Bearing Sperms,Y Bearing Sperm,Y Chromosome Bearing Sperm,Y-Bearing Sperms,Y-Chromosome-Bearing Sperms
D013480 Superovulation Occurrence or induction of release of more ova than are normally released at the same time in a given species. The term applies to both animals and humans. Superovulations

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