DOI QR코드

DOI QR Code

젖소의 장수성과 수익성 관계 연구

A study on the relationship between the longevity and profitability of dairy cattle

  • 도창희 (충남대학교 농업생명과학대학 동물자원과학부) ;
  • 조재성 (충남대학교 농업생명과학대학 동물자원과학부) ;
  • 조광현 (농촌진흥청 국립축산과학원) ;
  • 양보석 (농촌진흥청 국립축산과학원) ;
  • 윤호백 (농촌진흥청 국립축산과학원) ;
  • 이지수 (충남대학교 농업생명과학대학 동물자원과학부)
  • Do, Chang Hee (Division of Animal and Dairy Science, Chungnam National University) ;
  • Cho, Jae Sung (Division of Animal and Dairy Science, Chungnam National University) ;
  • Cho, Kwang Hyun (National Institute of Animal Science, R. D. A.) ;
  • Yang, Boh Suk (National Institute of Animal Science, R. D. A.) ;
  • Yun, Ho Baek (National Institute of Animal Science, R. D. A.) ;
  • Lee, Ji Su (Division of Animal and Dairy Science, Chungnam National University)
  • 투고 : 2015.08.05
  • 심사 : 2015.09.03
  • 발행 : 2015.09.30

초록

Records of 490,767 cows collected from 1990 to 2012 by dairy herd milk test of National Agriculture Cooperative Federation The pedigree of dairy cattle were provided by Korea Animal Improvement Association. The data were used to analyze the longevity of dairy cows with the life traits such as days in milk, number of lactation, productive life, and life span. The data were also used to investigate genetic relationship of these longevity traits with profitability of dairy cows, including heritability and genetic correlation. The profitability was calculated with simulation of milk income and production costs for individual cows. Days in milk among the traits had -0.287, -0.572 and -0.536 of genetic correlation with number of lactations, productive life and lifespan, respectively. The heritabilities of life span, number of lactations, productive life, and days in milk were found to be 0.045, 0.047, 0.059 and 0.081, respectively. Genetic correlations of profit with productive life, number of lactations, and days in milk were identified as 0.072, 0.080, 0.098 and 0.101. These results suggested that days in milk was most desirable traits to represent longevity of Holstein dairy cattle. In general, since longevity and profitability were close genetic relationship each other, genetic improvement of longevity is necessary for better profitable cows.

키워드

참고문헌

  1. Do, C, S Park, K Cho, Y Choi, T Choi, B Park, H Yun and D Lee. 2013. The Impact of milk production level on profit traits of Holstein dairy cattle in Korea. Korean J Anim Sci Technol. 55:343-349. https://doi.org/10.5187/JAST.2013.55.5.343
  2. Ducrocq, V. and J. Solkner, 1998. The Survival Kit, V3.12: A package for large analyses of survival data. Proc. 6th World Congr. Genet, Appl. Livest. Prod., Armidale, Australia (1998), pp. 447-450.
  3. Forabosco, F., J. H. Jakobsen and W. F. Fikse. 2008. Inter­national genetic evaluation for direct longevity in dairy bulls. J. Dairy Sci. 92:2338-2347.
  4. Gaalaas., R. F. and R. D. Plowman, 1962. Relationship between longevity and production in Holstein-Fresian cattle. J. Dairy Sci., 46:27.
  5. KDC (Korea Dairy Committee). 2013. Korea dairy statistics yearbook. (http://www.dairy.or.kr) pp255-259.
  6. NACFLIC (NACF Livestock Information Center). 2014. Monthly trend of farm price. https://livestock.nonghyup.com
  7. National Agricultural Cooperative Federation. 2014. Dairy Herd Milk Test. http://www.dcic.co.kr.
  8. Noh, J. 2012. The estimation of henetic parameters for economical traits and income in Holstein dairy cattle in Korea. Master Thesis, Chungnam National University.
  9. Perez-Cabal, M. A. and R. Alenda. 2002. Genetic relationships between lifetime profit and type traits in Spanish Holstein cows. J. Dairy Sci. 85:3480-3491. https://doi.org/10.3168/jds.S0022-0302(02)74437-8
  10. Sewalem, A., Miglior, G. J. Kistemaker, P. Sullivan, and B. J. Van Doormaal. 2007. Relationship between reproduction traits and functional longevity in Canadian dairy cattle. J. Dairy Sci. 91:1660-1668.
  11. Statistics Korea. 2014. Korea Statistical Information Service. http://kosis.kr/statisticsList/
  12. VanRaden, P.M. and E. J. H. Klaaskate. 1993. Genetic Evaluation of Length of Productive Life Including Predicted Longevity of Live Cows. J. Dairy Sci. 76:2758-2764. https://doi.org/10.3168/jds.S0022-0302(93)77613-4

피인용 문헌

  1. Gestation length in Holstein cow depends on the number and sex of fetuses vol.59, pp.4, 2015, https://doi.org/10.14405/kjvr.2019.59.4.181