Genetic analysis of clinical mastitis data from on-farm management software using threshold models

Journal of Dairy Science

Volumn 89, Issue 1, 2006, Pages 330-336

  Zwald, N R ^a,b   Weigel, K A ^a   Chang, Y M ^a   Welper, R D ^a,b   Clay, J S ^a,c  

^a UNIVERSITY OF WISCONSIN MADISON   (United States)

^b Alta Genetics Inc   (United States)

^c Dairy Records Management Systems   (United States)

Author keywords

Breeding value prediction; Clinical mastitis; Genetic selection; Threshold model

Indexed keywords

EID: 30844473500     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(06)72098-7     Document Type: Article

References (16)

1. Boettcher, P. J., J. C. M. Dekkers, and B. W. Kolstad. 1998. Development of an udder health index for sire selection based on somatic cell score, udder conformation, and milking speed. J. Dairy Sci. 81:1157-1168.
2. Fetrow, J. 2000. Mastitis: An economic consideration. Pages 3-47 in Proc. Natl. Mastitis Counc. Mtg., Atlanta, GA. Natl. Mastitis Council, Verona, WI.
3. Hansen, M., M. S. Lund, M. K. Sorenson, and L. G. Christensen. 2002. Genetic parameters of dairy character, protein yield, clinical mastitis, and other diseases in the Danish Holstein cattle. J. Dairy Sci. 85:445-452.
4. Harville, D. A., and R. W. Mee. 1984. A mixed-model procedure for analyzing ordered categorical data. Biometrics 40:393-408.
5. Heringstad, B., Y. M. Chang, D. Gianola, and G. Klemetsdal. 2003a. Genetic analysis of longitudinal trajectory of clinical mastitis in first-lactation Norwegian Cattle. J. Dairy Sci. 86:2676-2683.
6. Heringstad, B., Y. M. Chang, D. Gianola, and G. Klemetsdal. 2004. Multivariate threshold model analysis of clinical mastitis in multiparous Norwegian Dairy Cattle. J. Dairy Sci. 87:3038-3046.
7. Heringstad, B., R. Rekaya, D. Gianola, G. Klemetsdal, and K. A. Weigel. 2003b. Bivariate analysis of liability to clinical mastitis and to culling in first-lactation cows. J. Dairy Sci. 86:653-660.
8. Heringstad, B., R. Rekaya, D. Gianola, G. Klemetsdal, and K. A. Weigel. 2003c. Genetic change for clinical mastitis in Norwegian Cattle: A threshold model analysis. J. Dairy Sci. 86:369-375.
9. Nash, D. L., G. W. Rogers, J. B. Cooper, G. L. Hargrove, J. F. Keown, and L. B. Hansen. 2000. Heritability of clinical mastitis incidence and relationships with sire transmitting abilities for somatic cell score, udder type traits, productive life, and protein yield. J. Dairy Sci. 83:2350-2360.
10. Ødegard, J., J. Jensen, G. Klemetsdal, P. Madsen, and B. Heringstad. 2003. Genetic analysis of somatic cell score in Norwegian Cattle using random regression test-day models. J. Dairy Sci. 86:4103-4114.
11. Poso, J., and E. A. Mantysaari. 1996. Relationships between clinical mastitis, somatic cell score, and production for the first three lactations of Finnish Ayrshires. J. Dairy Sci. 79:1284-1291.
12. Reents, R., J. C. M. Dekkers, and L. R. Schaeffer. 1995. Genetic evaluation for somatic cell score with a test day model for multiple lactations. J. Dairy Sci. 78:2858-2870.
13. Rupp, R., and D. Boichard. 1999. Genetic parameters for clinical mastitis, somatic cell score, production, udder type traits, and milking ease in first lactation Holsteins. J. Dairy Sci. 82:2198-2204.
14. Shook, G. E., and M. M. Schutz. 1994. Selection on somatic cell score to improve resistance to mastitis in the United States. J. Dairy Sci. 77:648-658.
15. Sorensen, D., and D. Gianola. 2002. Likelihood, Bayesian, and MCMC Methods in Quantitative Genetics. Springer-Verlag, New York.
16. Zwald, N. R., K. A. Weigel, Y. M. Chang, R. D. Welper, and J. S. Clay. 2004. Genetic selection for health traits using producer-recorded data. I. Incidence rates, heritability estimates, and sire breeding values. J. Dairy Sci. 87:4287-4294.