Montaldo HH, Keown JF, Vleck LD, Tassell CP

Language: English/Spanish
References: 18
Page: 57-62
PDF size: 65.62 Kb.

ABSTRACT

Indexes to maximize profit from artificial insemination for Holstein sire selection were developed. Weights were obtained from a model of profit with continuous selection from biological and economic parameters in dairy herds of Mexico. The profit index for a 10-year investment horizon was IB₁₀ = 2.14 milk price per kg PTAL_MEX -19.92 semen price per dose. PTAL_MEX is the predicted transmitting ability for milk production in Mexico. The profit index for a 20-year horizon was IB₂₀ = 5.80 milk price per kg PTAL_MEX – 32.12 semen price per dose. The economic value of one kg of PTAL_MEX for a 10-year horizon was 0.107 milk price per kg, and the value for a 20-year horizon was 0.181 milk price per kg. Aspects related to the application of the index with bulls evaluated in Mexico and other countries are discussed.

REFERENCES

1. Harris DL, Newman S. Breeding for profit: synergism between genetic improvement and livestock production. J Anim Sci 1994;72:2178-2200.

2. Weller JI. Economic aspects of animal breeding. London (UK): Chapman and Hall, 1994.

3. Powell RL, Sieber M. Where are the top bulls? Holstein Wld 1994;March:46-47.

4. Powell RL, Sieber M. The origin of the world’s best sires. Holstein Friesian J 1994;June:427-440.

5. Powell RL. Interbull evaluations are here. Holstein Wld 1995;May:568-570.

6. Schneeberger M, Freeman AE, Berger PJ. Income and risk for dairymen selecting sires for artificial insemination. J Dairy Sci 1982;65:988-994.

7. Gibson JP. An introduction to the design and economics of animal breeding strategies. Course Notes. Guelph, Ontario, Canada: University of Guelph, 1995.

8. Hill WG. Investment appraisal for national breeding programmes. Anim Prod 1971;3:37-50.

9. Dekkers JCM, Shook GEA. Semi-stochastic model for simulation of genetic improvement by commercial artificial insemination firms in a large dairy cattle population. J Anim Breed Genet 1990;107:321-339.

10. Montaldo H. Optimization of selection response using artificial insemination and new reproductive technologies in dairy cattle (Ph.D. dissertation). Lincoln (Nebr): University of Nebraska,1997.

11. Montaldo H, Torres S. Repetibilidad de la producción de leche e intervalo entre partos en una población de vacas Holstein en México. Arch Zootec 1993;42:361-366.

12. Stanton TL, Blake RW, Quass RL, Van Vleck LD. Response to selection of United States Holsteins in Latin America. J Dairy Sci 1991;74:651-664.

13. Samuelson DJ, Pearson RE. Accuracy of predicting genetic merit from pedigree information for bulls entering stud sampling programs. J Dairy Sci 1995;78:2057-2066.

14. Keown JF, Montaldo H, Van Vleck LD, Van Tassell, CP. Economic responses and risk from use of selected Holstein sires in Italy, Mexico, The Netherlands and USA. Proceedings of the 6th World Congress on Genetics Applied to Livestock Production; 1998 January 11-16; Armidale, New South Wales, Australia. Armidale, New South Wales, Australia: University of New England-CSIRO, 1998:327-330.

15. Leitch HW, Gibson JP, Dekkers JCM, Burnside, EB. Maximizing utility when selecting bulls globally. Proceedings of the 5th World Congress on Genetics Applied to Livestock Production; Guelph, Ontario, Canada. Guelp, Ontario, Canada: University of Guelph-Agriculture Canada,1994;50-53.

16. Costa CN, Blake RW, Pollak EJ, Oltenacu, PA. Genetic relationships for milk and fat yield between Holstein populations in Brasil and the United States. Proceedings of the 6th World Congress on Genetics Applied to Livestock Production; 1998 January 11-16; Armidale, New South Wales, Australia. Armidale, New South Wales, Australia: University of New England-CSIRO, 1998;323-326.

17. Groen AF, Steine T, Colleau JJ, Pedersen J, Prybyl J, Reinsch N. Economic values in dairy cattle breeding, with special reference to functional traits. Report of an EAAP-working group. Livest Prod Sci 1997;49:1-21.

18. Lohuis MM, Sivanadian B, Dekkers JCM. Expected responses from selection indices. 1997 Dairy Research Report. Guelph, Ontario, Canada: University of Guelph, Canada, 1997.