Analysis of Productive Life in Swiss Brown Cattle

Journal of Dairy Science

Volumn 80, Issue 10, 1997, Pages 2572-2579

  Vukasinovic, N ^a   Moll, J ^a   Kunzi N ^a  

^a ETH ZURICH   (Switzerland)

Author keywords

Estimated transmitting ability; Productive life; Survival analysis; Swiss Brown cattle

Indexed keywords

BOS TAURUS;

ANIMAL; ARTICLE; BREEDING; CATTLE; FEMALE; GENETICS; LACTATION; LONGEVITY; MALE; PHYSIOLOGY; PROPORTIONAL HAZARDS MODEL; REGRESSION ANALYSIS;

ANIMALS; BREEDING; CATTLE; FEMALE; LACTATION; LONGEVITY; MALE; PROPORTIONAL HAZARDS MODELS; REGRESSION ANALYSIS;

EID: 0031254584     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(97)76213-1     Document Type: Article

References (19)

1. Cox, D. R. 1972. Regression models and life tables (with discussion). J. R. Stat. Soc. Ser. B 34:187.
2. Ducrocq, V. 1987. An analysis of length of productive life in dairy cattle. Ph.D. Diss., Cornell Univ., Ithaca, NY.
3. Ducrocq, V. 1992. Survival analysis. Workshop on advanced biometrical methods in animal breeding. Flawil, Switzerland. Organized by C. Hagger, Breeding Biol. Group, Swiss Fed. Inst. Technol., Zurich, Switzerland.
4. Ducrocq, V. 1994. Statistical analysis of length of productive life for dairy cows in the Normande breed. J. Dairy Sci. 77:855.
5. Ducrocq, V., and G. Casella. 1996. A Bayesian analysis of mixed survival models. Genet. Sel. Evol. 28:505.
6. Ducrocq, V., and J. Sölkner. 1994. 'The Survival Kit' - a Fortran package for the analysis of survival data. Proc. 5th World Congr. Genet. Appl. Livest. Prod., Guelph, XXII:51.
7. Ducrocq, V., R. L. Quaas, E. J. Pollak, and G. Casella. 1988. Length of productive life in dairy cows. 1. Justification of a Weibull model. J. Dairy Sci. 71:3061.
8. Ducrocq, V., R. L. Quaas, E. J. Pollak, and G. Casella. 1988. Length of productive life in dairy cows. 2. Variance component estimation and sire evaluation. J. Dairy Sci. 71:3071.
9. Egger-Danner, C. 1993. Zuchtwertschätzung für Merkmale der Langlebigkeit beim Rind mit Methoden der Lebensdaueranalyse. Ph.D. Diss., Univ. Bodenkultur, Vienna, Austria.
10. Egger-Danner, C., J. Sölkner, and A. Essl. 1993. Zuchtwertschätzung für Merkmale der Langlebigkeit: Vergleich der Proportional Hazards Analyse für das Ausfallsrisiko mit BLUP für die Verbleiberate. Vortragstagung der DGfZ/GfT, Göttingen, Germany.
11. Essl, A. 1984. Zusammenhang zwischen Leistungszucht und Nutzungsdauer bei Kühen. Züchtungskunde 56:337.
12. Essl, A. 1989. Estimation of genetic correlations between first lactation milk yield and length of productive life by means of a half-sib analysis: a note on the estimation bias. J. Anim. Breed. Genet. 106:402.
13. Prentice, R. L., and J. D. Kalbfleisch. 1979. Hazard rate models with covariates. Biometrics 35:25.
14. Smith, S. P. 1983. The extension of failure time analysis to problems of animal breeding. Ph.D. Diss., Cornell Univ., Ithaca, NY.
15. Smith, S. P., and F. R. Allaire. 1986. Analysis of failure times measured on dairy cows: theoretical considerations in animal breeding. J. Dairy Sci. 69:217.
16. Strandberg, E. 1996. Breeding for longevity in dairy cows. Page 125 in Progress in Dairy Science. CAB Int., Wallingford, Oxon, United Kingdom.
17. Van Doormal, B. J., L. R. Schaeffer, and B. W. Kennedy. 1985. Estimation of genetic parameters for stayability in Canadian Holsteins. J. Dairy Sci. 68:1763.
18. Vukasinovic, N. 1995. Genetische Beziehungen zwischen Langlebigkeit, Milchleistung und Exterieur beim Schweizerischen Braunvieh. Ph.D. Diss, Swiss Fed. Inst. Technol., Zurich, Switzerland.
19. Weir, S. B. 1996. The Bootstrap. Page 53 in Genetic Data Analysis II. Sinauer Assoc., Inc. Publ., Sunderland, MA.