JDS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Heringstad, B.
Right arrow Articles by Weigel, K. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Heringstad, B.
Right arrow Articles by Weigel, K. A.
J. Dairy Sci. 86:369-375
© American Dairy Science Association, 2003.

Genetic Change for Clinical Mastitis in Norwegian Cattle: a Threshold Model Analysis

B. Heringstad*, R. Rekaya{dagger}, D. Gianola*,{ddagger}, G. Klemetsdal* and K. A. Weigel{ddagger}

* Department of Animal Science, Agricultural University of Norway, P.O. Box 5025, N-1432 Ås, Norway
{dagger} Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602
{ddagger} Department of Dairy Science, University of Wisconsin, Madison 53706

Corresponding author:
B. Heringstad; e-mail:
bjorg.heringstad{at}ihf.nlh.no.

Records of clinical mastitis on 1.6 million first-lactation daughters of 2411 Norwegian Cattle sires that were progeny tested from 1978 through 1998 were analyzed with a threshold model. The main objective was to infer genetic change for the disease in the population. A Bayesian approach via Gibbs sampling was used. The model for the underlying liability had age at first calving, month x year of calving, herd x 3-year-period, and sire of the cow as explanatory variables. Posterior mean (SD) of heritability of liability to clinical mastitis was 0.066 (0.003). Genetic evaluations (posterior means) of sires both in the liability and observable scales were computed. Annual genetic change of liability to clinical mastitis for progeny tested bulls born from 1973 to 1993 was assessed. The linear regression of mean sire effect on year of birth had a posterior mean (SD) of -0.00018 (0.0004), suggesting a nearly constant genetic level for clinical mastitis. However, an analysis of sire posterior means by birth-year of daughters indicated an approximately constant genetic level in the cow population from 1976 to 1990 (-0.02%/yr), and a genetic improvement thereafter (-0.27%/yr). This reflects more emphasis on mastitis in selection of bulls in recent years. Corresponding results obtained with a standard linear model analysis were -0.01% and -0.23% per year, respectively (regression of sire predicted transmitting ability on birth-year of daughters). Genetic change seems to be slightly understated with the linear model, assuming the threshold model holds true.

Key Words: Bayesian methods • clinical mastitis • genetic change • heritability • threshold model

Abbreviation key: CM = clinical mastitis, NRF = Norwegian Cattle, PTA = predicted transmitting ability




This article has been cited by other articles:


Home page
 J DAIRY SCIHome page
M. Holtsmark, B. Heringstad, P. Madsen, and J. Odegard
Genetic Relationship Between Culling, Milk Production, Fertility, and Health Traits in Norwegian Red Cows
J Dairy Sci, October 1, 2008; 91(10): 4006 - 4012.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
S. Walsh, F. Buckley, D. P. Berry, M. Rath, K. Pierce, N. Byrne, and P. Dillon
Effects of Breed, Feeding System, and Parity on Udder Health and Milking Characteristics
J Dairy Sci, December 1, 2007; 90(12): 5767 - 5779.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
M. Rodrigues-Motta, D. Gianola, B. Heringstad, G. J. M. Rosa, and Y. M. Chang
A Zero-Inflated Poisson Model for Genetic Analysis of the Number of Mastitis Cases in Norwegian Red Cows
J Dairy Sci, November 1, 2007; 90(11): 5306 - 5315.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
O. Osteras, H. Solbu, A. O. Refsdal, T. Roalkvam, O. Filseth, and A. Minsaas
Results and Evaluation of Thirty Years of Health Recordings in the Norwegian Dairy Cattle Population
J Dairy Sci, September 1, 2007; 90(9): 4483 - 4497.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
A. M. Silvestre, M. M. D. Ginja, A. J. A. Ferreira, and J. Colaco
Comparison of estimates of hip dysplasia genetic parameters in Estrela Mountain Dog using linear and threshold models
J Anim Sci, August 1, 2007; 85(8): 1880 - 1884.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
J. L. L. Guerra, D. E. Franke, and D. C. Blouin
Genetic parameters for calving rate and calf survival from linear, threshold, and logistic models in a multibreed beef cattle population
J Anim Sci, December 1, 2006; 84(12): 3197 - 3203.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, Y. M. Chang, I. M. Andersen-Ranberg, and D. Gianola
Genetic analysis of number of mastitis cases and number of services to conception using a censored threshold model.
J Dairy Sci, October 1, 2006; 89(10): 4042 - 4048.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
T. Averill, R. Rekaya, and K. Weigel
Random regression models for male and female fertility evaluation using longitudinal binary data.
J Dairy Sci, September 1, 2006; 89(9): 3681 - 3689.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, D. Gianola, Y. M. Chang, J. Odegard, and G. Klemetsdal
Genetic associations between clinical mastitis and somatic cell score in early first-lactation cows.
J Dairy Sci, June 1, 2006; 89(6): 2236 - 2244.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
N. R. Zwald, K. A. Weigel, Y. M. Chang, R. D. Welper, and J. S. Clay
Genetic Analysis of Clinical Mastitis Data from On-Farm Management Software Using Threshold Models
J Dairy Sci, January 1, 2006; 89(1): 330 - 336.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, Y. M. Chang, D. Gianola, and G. Klemetsdal
Genetic Analysis of Clinical Mastitis, Milk Fever, Ketosis, and Retained Placenta in Three Lactations of Norwegian Red Cows
J Dairy Sci, September 1, 2005; 88(9): 3273 - 3281.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J. Odegard, P. Madsen, D. Gianola, G. Klemetsdal, J. Jensen, B. Heringstad, and I. R. Korsgaard
A Bayesian Threshold-Normal Mixture Model for Analysis of a Continuous Mastitis-Related Trait
J Dairy Sci, July 1, 2005; 88(7): 2652 - 2659.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
I. M. Andersen-Ranberg, B. Heringstad, D. Gianola, Y. M. Chang, and G. Klemetsdal
Comparison Between Bivariate Models for 56-Day Nonreturn and Interval from Calving to First Insemination in Norwegian Red
J Dairy Sci, June 1, 2005; 88(6): 2190 - 2198.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, Y. M. Chang, D. Gianola, and G. Klemetsdal
Genetic Association Between Susceptibility to Clinical Mastitis and Protein Yield in Norwegian Dairy Cattle
J Dairy Sci, April 1, 2005; 88(4): 1509 - 1514.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J. Odegard, G. Klemetsdal, and B. Heringstad
Genetic Improvement in Mastitis Resistance: Comparison of Selection Criteria from Cross-Sectional and Random Regression Sire Models for Somatic Cell Score
J Dairy Sci, April 1, 2005; 88(4): 1515 - 1520.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
G. A. Abdel-Azim, A. E. Freeman, M. E. Kehrli Jr., S. C. Kelm, J. L. Burton, A. L. Kuck, and S. Schnell
Genetic Basis and Risk Factors for Infectious and Noninfectious Diseases in US Holsteins. I. Estimation of Genetic Parameters for Single Diseases and General Health
J Dairy Sci, March 1, 2005; 88(3): 1199 - 1207.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
M. Koivula, E. A. Mantysaari, E. Negussie, and T. Serenius
Genetic and Phenotypic Relationships Among Milk Yield and Somatic Cell Count Before and After Clinical Mastitis
J Dairy Sci, February 1, 2005; 88(2): 827 - 833.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
N. R. Zwald, K. A. Weigel, Y. M. Chang, R. D. Welper, and J. S. Clay
Genetic Selection for Health Traits Using Producer-Recorded Data. II. Genetic Correlations, Disease Probabilities, and Relationships with Existing Traits
J Dairy Sci, December 1, 2004; 87(12): 4295 - 4302.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, Y. M. Chang, D. Gianola, and G. Klemetsdal
Multivariate Threshold Model Analysis of Clinical Mastitis in Multiparous Norwegian Dairy Cattle
J Dairy Sci, September 1, 2004; 87(9): 3038 - 3046.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J. Odegard, J. Jensen, G. Klemetsdal, P. Madsen, and B. Heringstad
Genetic Analysis of Somatic Cell Score in Norwegian Cattle Using Random Regression Test-Day Models
J Dairy Sci, December 1, 2003; 86(12): 4103 - 4114.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, G. Klemetsdal, and T. Steine
Selection Responses for Clinical Mastitis and Protein Yield in Two Norwegian Dairy Cattle Selection Experiments
J Dairy Sci, September 1, 2003; 86(9): 2990 - 2999.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
B. Heringstad, Y. M. Chang, D. Gianola, and G. Klemetsdal
Genetic Analysis of Longitudinal Trajectory of Clinical Mastitis in First-Lactation Norwegian Cattle
J Dairy Sci, August 1, 2003; 86(8): 2676 - 2683.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
I. M. A.-Ranberg, B. Heringstad, G. Klemetsdal, M. Svendsen, and T. Steine
Heifer Fertility in Norwegian Dairy Cattle: Variance Components and Genetic Change
J Dairy Sci, August 1, 2003; 86(8): 2706 - 2714.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2003 by the American Dairy Science Association ®.