The effect of synchronization on genetic parameters of reproductive traits in dairy cattle

Journal of Dairy Science

Volumn 88, Issue 6, 2005, Pages 2217-2225

  Goodling Jr , R C ^a,b   Shook, G E ^a   Weigel, K A ^a   Zwald, N R ^a  

^a UNIVERSITY OF WISCONSIN MADISON   (United States)

^b PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

Days open; Days to first breeding; Heritability; Reproductive synchronization

Indexed keywords

ANIMALIA; BOS TAURUS;

EID: 26444601156     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(05)72897-6     Document Type: Article

References (17)

1. Abdallah, J. M., and B. T. McDaniel. 2000. Genetic parameters and trends of milk, fat, days open, and body weight after calving in North Carolina experimental herds. J. Dairy Sci. 83:1364-1370.
2. Cartmill, J. A., S. Z. El-Zarkouny, B. A. Hensley, T. G. Rozell, J. F. Smith, and J. S. Stevenson. 2001. An alternative AI breeding protocol for dairy cows exposed to elevated ambient temperatures before or after calving or both. J. Dairy Sci. 84:799-806.
3. Dematawewa, C. M. B., and P. J. Berger. 1998. Genetic and phenotypic parameters for 305-day yield, fertility, and survival in Holsteins. J. Dairy Sci. 81:2700-2709.
4. Falconer, D. S., and T. F. C. Mackay. 1996. Pages 299-300 in Introduction to Quantitative Genetics. 4th ed. Longman Group Ltd., Essex, UK.
5. Fricke, P. M. 2002a. Reproduction practices to extend cow longevity. Online. Available http://www.wisc.edu/dysci/uwex/rep_phys/ pubs/longevity502. pdf. Accessed Aug. 3, 2002.
6. Fricke, P. M. 2002b. Scanning the future - Ultrasonography as a reproductive management tool for dairy cattle. J. Dairy Sci. 85:1918-1926.
7. Grosshans, T., Z. Z. Xu, L. J. Burton, D. L. Johnson, and K. L. Macmillan. 1997. Performance and genetic parameters for fertility of seasonal dairy cows in New Zealand. Livest. Prod. Sci. 51:41-51.
8. Hageman, W. H., II, G. E. Shook, and W. J. Tyler. 1991. Reproductive performance in genetic lines selected for high or average milk yield. J. Dairy Sci. 74:4366-4376.
9. Hayes, J. F., R. I. Cue, and H. G. Monardes. 1992. Estimates of repeatability of reproductive measures in Canadian Holsteins. J. Dairy Sci. 75:1701-1706.
10. 2α, gonadotropin-releasing hormone, and timed artificial insemination. J. Dairy Sci. 83:2366-2372.
11. Marti, C. P., and D. A. Funk. 1994. Relationship between production and days open at different levels of herd production. J. Dairy Sci. 77:1682-1690.
12. Pursley, J. R., M. R. Kosorok, and M. C. Wiltbank. 1997. Reproductive management of lactating dairy cows using synchronization of ovulation. J. Dairy Sci. 80:301-306.
13. 2α, and GnRH. Theriogenology 44:915-923.
14. Royal, M. D., A. P. F. Flint, and J. A. Woolliams. 2002. Genetic and phenotypic relationships among endocrine and traditional fertility traits and production traits in Holstein-Friesian dairy cows. J. Dairy Sci. 85:958-967.
15. Silva, H. M., C. J. Wilcox, W. W. Thatcher, R. B. Becker, and D. Morse. 1992. Factors affecting days open, gestation length, and calving interval in Florida dairy cattle. J. Dairy Sci. 75:288-293.
16. Van Arendonk, J. A. M., R. Hovenier, and W. De Boer. 1989. Phenotypic and genetic association between fertility and production in dairy cows. Livest. Prod. Sci. 21:1-12.
17. Veerkamp, R. F., E. P. Koenen, and G. De Jong. 2001. Genetic correlations among body condition score, yield, and fertility in first-parity cows estimated by random regression models. J. Dairy Sci. 84:2327-2335.