Journal of Dairy Science
Volume 93, Issue 6 , Pages 2695-2702 , June 2010

Response to alternative genetic-economic indices for Holsteins across 2 generations

Received 18 June 2009 ,Accepted 8 March 2010.

References 

  1. Animal Improvement Programs Laboratory. 2008. Listing of format 6, health record. http://aipl.arsusda.gov/formats/fmt6.html. Accessed Feb. 17, 2009.
  2. Animal Improvement Programs Laboratory. 2009. Cow genetic trends, calculated April 2009. http://aipl.arsusda.gov/eval/summary/trend.cfm. Accessed May 29, 2009.
  3. Berger PJ, Freeman AE. Prediction of sire merit for calving difficulty. J. Dairy Sci. 1978;61:1146–1150
  4. Cole, J. B., P. M. VanRaden, and Multi-State Project S-1040. 2009. Net merit as a measure of lifetime profit: 2010 revision. AIPL Res. Rep. NM$4(12–09). http://aipl.arsusda.gov/reference/nmcalc-2010.htm Accessed Dec. 18, 2009.
  5. Cole JB, Wiggans GR, VanRaden PM. Genetic evaluation of stillbirth in United States Holsteins using a sire-maternal grandsire threshold model. J. Dairy Sci. 2007;90:2480–2488
  6. Cunningham EP, Tauebert H. Measuring the effect of change in selection indices. J. Dairy Sci. 2009;92:6192–6196
  7. González-Recio O, Pérez-Cabal MA, Alenda R. Economic value of female fertility and its relationship with profit in Spanish dairy cattle. J. Dairy Sci. 2004;87:3053–3061
  8. Hare E, Norman HD, Wright JR. Trends in calving ages and calving intervals for dairy cattle breeds in the United States. J. Dairy Sci. 2006;89:365–370
  9. Hermas SA, Young CW, Rust JW. Genetic relationships and additive genetic variation of productive and reproductive traits in Guernsey dairy cattle. J. Dairy Sci. 1987;70:1252–1257
  10. Hoekstra J, van der Lugt AW, van der Werf JHJ, Ouweltjes W. Genetic and phenotypic parameters for milk production and fertility traits in upgraded dairy cattle. Livest. Prod. Sci. 1994;40:225–232
  11. Holstein Association USA. Holstein Total Performance Index Sire Summaries, January 2009. Brattleboro, VT: Holstein Assoc. USA Inc.; 2009;
  12. International Bull Evaluation Service. 2009. Description of National Genetic Evaluation Systems for dairy cattle traits as applied in different Interbull member countries. http://www-interbull.slu.se/national_ges_info2/framesida-ges.htm. Accessed Feb. 17, 2009.
  13. Lucy MC. Reproductive loss in high-producing dairy cattle: Where will it end?. J. Dairy Sci. 2001;84:1277–1293
  14. Nieuwhof GJ, Powell RL, Norman HD. Ages at calving and calving intervals for dairy cattle in the United States. J. Dairy Sci. 1989;72:685–692
  15. Norman HD. Sire evaluation procedures for yield traits. Washington, DC: Natl. Coop. DHI Progr. Handbook, Fact Sheet H-1. Ext. Serv., USDA; 1986;
  16. Norman, H. D., and F. N. Dickinson. 1971. An economic index for determining the relative value of milk and fat in predicted differences of bulls and cow index values of cows. ARS-44-223. DHI. Lett. 47(1):1–34. ARS, USDA, Beltsville, MD.
  17. Pryce, J. E., and R. F. Veerkamp. 2001. The incorporation of fertility indices in genetic improvement programmes. Pages 237–250 in Fertility in the High Producing Dairy Cow, Br. Soc. Anim. Sci. Occasional Publ. No. 26, Vol. I. M. G. Diskin, ed. BSAS, Edinburgh, UK.
  18. Schutz MM. Genetic evaluation of somatic cell scores for United States dairy cattle. J. Dairy Sci. 1994;77:2113–2129
  19. Van Tassell CP, Wiggans GR, Misztal I. Implementation of a sire-maternal grandsire model for evaluation of calving ease in the United States. J. Dairy Sci. 2003;86:3366–3373
  20. VanRaden PM. Invited review: Selection on net merit to improve lifetime profit. J. Dairy Sci. 2004;87:3125–3131
  21. VanRaden, P. M., and Multi-State Project S-1008. 2006. Net merit as a measure of lifetime profit: 2006 revision. AIPL Res. Rep. NM$3(7–06). http://aipl.arsusda.gov/reference/nmcalc-2006.htm Accessed Feb. 17, 2009.
  22. VanRaden PM, Sanders AH, Tooker ME, Miller RH, Norman HD, Kuhn MT, et al. Development of a national genetic evaluation for cow fertility. J. Dairy Sci. 2004;87:2285–2292
  23. VanRaden PM, Wiggans GR. Productive life evaluations: Calculation, accuracy, and economic value. J. Dairy Sci. 1995;78:631–638
  24. Wall E, Brotherstone S, Woolliams JA, Banos G, Coffey MP. Genetic evaluation of fertility using direct and correlated traits. J. Dairy Sci. 2003;86:4093–4102

PII: S0022-0302(10)00274-2

doi: 10.3168/jds.2009-2499

Journal of Dairy Science
Volume 93, Issue 6 , Pages 2695-2702 , June 2010

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