Journal of Embryo Transfer (한국수정란이식학회지)

The Korean Society of Embryo Transfer (한국수정란이식학회)
권호 표지

Comparison of Female Reproductive Systems in Himalayan Tahr (Hemitragus jemlahicus) and Corriedale Sheep (Ovis aries)

  • Received : 2010.02.24
  • Accepted : 2010.03.08
  • Published : 2010.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

A necropsy of a primiparous, 4-year-old, Himalayan tahr (Hemitragus jemlahicus) was performed in September 8, 2009. Typical appearances of ovaries, oviducts, uterine horns, cervix and caruncles were well shown. Five cervical folds were present in the cervix. Cervical opening can be reached in the length of less than 15 cm from the entrance of vagina. Development of two follicles was found in the left ovary even though breeding season of this species naturally starts in late November. The reproductive organs of a primiparous, 3-year-old, Corriedale sheep showed that differences in the length and morphological appearance of cervix exist between two species. Comparative understanding of reproductive systems in Himalayan tahr and Corriedale sheep could help advancing assisted reproductive technologies in feral goats.

Keywords

References

  1. Benirschke K and Kumamoto AT. 1980. The chromosomes of the Nilgiri tahr (Hemitragus hylocrius). Intern. Zoo Yearbk. 20:274-275. https://doi.org/10.1111/j.1748-1090.1980.tb00992.x
  2. Bunch TD and Nadler CF. 1980. Giemsa-band patterns of the tahr and chromosomal evolution of the tribe Caprini. J. Hered. 71:110-116.
  3. Forsyth D and Hickling G. 1998. Increasing Himalayan tahr and decreasing chamois densities in the eastern Southern Alps, New Zealand: evidence for interspecific competition. Oecologia 113:377-382. https://doi.org/10.1007/s004420050389
  4. Forsyth D. 1998. Long-term harvesting and male migration in a New Zealand population of Himalayan tahrs (Hemitragus jemlahicus). J. Appl. Ecol. 36:351-362.
  5. Jones, ML. 1993. Longevity of ungulates in captivity. Intern. Zoo Yearbl. 32:159-169.
  6. King CF. 1981. Reproductive performance of Polwarth and corriedale sheep in Tasmania. Theriogenology 15:135-147. https://doi.org/10.1016/S0093-691X(81)80001-5
  7. Nelson-Rees WA, Kniazeff AJ, Malley RL and Darby NB Jr. 1967. On the karyotype of the tahr Hemitragus jemlahicus and the Y -chromosome of goats and sheep. Chromosoma. 23: 154-161. https://doi.org/10.1007/BF00331110
  8. Nowak RM. 1999. Walker's Mammals of the World. 6th ed. The Johns Hopkins Press, Baltimore.
  9. Pare P, Barrette C, Prescott J. 1996. Seasonal reproduction of captive Himalayan tahrs (Hemitragus jemlahicus) in relation to latitude. J. Mamm. 77:826-832. https://doi.org/10.2307/1382688
  10. Windsor DP. 1995. Factors influencing the success of transcervical insemination in Merino ewes. Therigenology 43:1009-1018. https://doi.org/10.1016/0093-691X(95)00065-G
  11. Wulster-Radcliffe MC, Wang S, Lewis GS. 2004. Transcervical artificial insemination in sheep: effects of a new transcervical artificial insemination instrument and traversing the cervix on pregnancy and lambing rates. Theriogenology 62:990-1002. https://doi.org/10.1016/j.theriogenology.2003.12.031
  12. Yong H, Kim SD, Bae BS, Son CS, Son GT, Jeon KH, Song IJ, Kang SK, Gu DC, Lee JH and Kim HY. 2009. Estrous synchronization and artificial insemination in European Mouflon (Ovis gmelini musimon). J. Emb. Trans. 24:271- 274.