Impact of calving ease on functional longevity and herd amortization costs in basque holsteins using survival analysis

Journal of Dairy Science

Volumn 90, Issue 9, 2007, Pages 4451-4457

  De Maturana, E López ^a   Ugarte, E ^a   Gonzalez Recio, O ^b  

^a NEIKER and a Vaccine producing Commercial Company CZVSL   (Spain)

^b UNIVERSIDAD POLITÉCNICA DE MADRID   (Spain)

Author keywords

Calving ease; Functional longevity; Herd amortization; Survival analysis

Indexed keywords

AGING; ANIMAL; ANIMAL DISEASE; ARTICLE; BIRTH; CATTLE; CATTLE DISEASE; DAIRYING; DYSTOCIA; ECONOMICS; FEMALE; LACTATION; LONGEVITY; PARITY; PATHOPHYSIOLOGY; PHYSIOLOGY; PREGNANCY; PROPORTIONAL HAZARDS MODEL; SEASON;

AGING; ANIMALS; CATTLE; CATTLE DISEASES; DAIRYING; DYSTOCIA; FEMALE; LACTATION; LONGEVITY; PARITY; PARTURITION; PREGNANCY; PROPORTIONAL HAZARDS MODELS; SEASONS;

EID: 34848882590     PISSN: 00220302     EISSN: 15253198     Source Type: Journal    
DOI: 10.3168/jds.2006-734     Document Type: Article

References (24)

1. Alday, S., and E. Ugarte. 1997. Genetic evaluation of calving ease in Spanish Holstein population. Interbull Bull. 18:21-24.
2. Beaudeau, F., H. Seegers, V. Ducrocq, C. Fourichon, and N. Bareille. 2000. Effect of health disorders on culling in dairy cows: A review and a critical discussion. Ann. Zootech. 49:293-311.
3. Chirinos, Z. R. 2003. Desarrollo de un sistema de valoración genética para la longevidad en ganado frisón español. Tesis doctoral. E.T.S.I. Agrónomos. Universidad Politécnica de Madrid, Spain.
4. Dekkers, J. C. M. 1994. Optimal breeding strategies for calving ease. J. Dairy Sci. 77:3441-3453.
5. Dematawewa, C. M. B., and P. J. Berger. 1997. Effect of dystocia on yield, fertility and cow losses and an economic evaluation of dystocia scores for Holsteins. J. Dairy Sci. 80:754-761.
6. Ducrocq, V. 1987. An analysis of length of productive life in dairy cattle. PhD Diss. Cornell Univ., Ithaca, NY.
7. Ducrocq, V. 1994. Statistical analysis of length of productive life for dairy cows of the Normande breed. J. Dairy Sci. 77:855-866.
8. Ducrocq, V. 2001. Survival analysis applied to animal breeding and epidemiology, course notes. University of Wisconsin-Madison.
9. Ducrocq, V. 2005. An improved model for the French genetic evaluation of dairy bulls on length of productive life of their daughters. Anim. Sci. 80:249-256.
10. Ducrocq, V., and J. Solkner. 1994. "The Survival Kit" - A Fortran package for the analysis of survival data. Proc. 5th World Congr. Genet. Appl. Livest. Prod., Guelph, Ontario, Canada.
11. Dürr, J. W., H. G. Monardes, and R. I. Cue. 1999. Genetic analysis of herd life in Quebec Holstein using Weibull models. J. Dairy Sci. 82:2503-2513.
12. Essl, A. 1998. Longevity in dairy cattle breeding: A review. Livest. Prod. Sci. 57:79-89.
13. González Recio, O., M. A. Pérez-Cabal, and R. Alenda. 2004. Economic value of female fertility and its relationship with profit in Spanish dairy cattle. J. Dairy Sci. 87:3053-3061.
14. Gröhn, Y. T., V. P. Ducrocq, and J. A. Hertl. 1997. Modeling the effect of a disease on culling: An illustration of the use of time-dependent covariates for survival analysis. J. Dairy Sci. 80:1755-1766.
15. López de Maturana, E., A. Legarra, L. Varona, and E. Ugarte. 2007. Analysis of fertility and dystocia in Holsteins using recursive models to handle censored and categorical data. J. Dairy Sci. 90:2012-2024.
16. Pérez-Cabal, M. A., and R. Alenda. 2003. Lifetime profit as an individual trait and prediction of its breeding values in Spanish Holstein cows. J. Dairy Sci. 86:4115-4122.
17. Rajala-Schultz, P. J., and Y. T. Gröhn. 1999. Culling of dairy cows. Part I. Effects of diseases on culling in Finnish Ayrshire cows. Prev. Vet. Med. 41:195-208.
18. Rogers, P. L., C. T. Gaskins, K. A. Johnson, and M. D. MacNeil. 2004. Evaluation longevity of composite beef females using survival analysis techniques. J. Dairy Sci. 82:860-866.
19. Roxström, A., V. P. Ducrocq, and E. Strandberg. 2003. Survival analysis of longevity in dairy cattle on a lactation basis. Genet. Sel. Evol. 35:305-318.
20. Sewalem, A., G. J. Kistemaker, F. Miglior, and B. J. Van Doormaal. 2006. Analysis of the relationship between fertility traits and functional longevity in Canadian Holsteins using a Weibull proportional hazards model. Proc. 8th World Congr. Genet. Appl. Livest. Prod., Belo Horizonte, Brazil.
21. Tarrés, J., P. Puig, V. Ducrocq, and J. Piedrafita. 2004. Factors influencing length of productive life and replacement rates in the Bruna dels Pirinéus beef breed. Anim. Sci. 78:13-22.
22. van Arendonk, J. A. M. 1988. Management guides for insemination and replacement decisions. J. Dairy Sci. 71:1050-1057.
23. Vollema, A. R., S. Van Der Beek, A. G. F. Harbers, and G. De Jong. 2000. Genetic evaluation for longevity of Dutch dairy bulls. J. Dairy Sci. 83:2629-2639.
24. Vukasinovic, N., J. Moll, and L. Casanova. 2001. Implementation of a routine genetic evaluation for longevity based on survival analysis techniques in dairy cattle populations in Switzerland. J. Dairy Sci. 84:2073-2080.