Earticle

초록

영어

Sexed sperm can contribute to increase the profitability of the cow industry through the production of offspring of the craved sex, such as males for meat or females for dairy production. Therefore, the utilization of sexed sperms plays a very important role in the production of offspring of superior cattle. In this study, we examined the pregnancy rates and calves sexing proportion of male and female calves produced using AI, both performed using sexed and conventional sperm. In the result, the conception rates after ET were 73.3% (33/45) sexed semen and 52% (55/104) conventional semen. Thus, the sex ratio for sexed-semen inseminations was 70% (21/30) females for singleton births within a 272 to 292 day gestation interval. The sex ratio for conventional semen was 61% (34/56) females for births. As a result, it is suggested that the use of sex classification sperm will play a very important role in the offspring production of Korean bovine.

목차

ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
Animals
Estrus synchronization
Sexing of semen (sperm) and AI
Embryo collection and evaluation
Transfer of embryos
Pregnancy diagnosis, fetal sex and calving
RESULTS AND DISCUSSION
CONFLICTS OF INTEREST
ORCID
REFERENCES

키워드

저자

• Enkhbolor Barsuren [ Major in the Animal Biotechnology, The Graduate School of Biology & Information Technology, Hankyong National University, Anseong 17579, Korea ]
• Sang Hwan Kim [ Institute of Genetic Engineering, Hankyong National University, Anseong 17579, Korea ]
• Ho-Jun Lee [ Institute of Genetic Engineering, Hankyong National University, Anseong 17579, Korea ]
• Jong Taek Yoon [ Institute of Genetic Engineering, Hankyong National University, Department of Animal Life Science, Hankyong National University, Anseong 17579, Korea ] Corresponding Author

참고문헌

발행기관

간행물

관심저널 등록

• 간행물명

  Journal of Animal Reproduction and Biotechnology

• 간기

  계간

• pISSN

  2671-4639

• eISSN

  2671-4663

• 수록기간

  2019~2026

• 십진분류

  KDC 527 DDC 636