Evaluation of models for somatic cell score lactation patterns in Holsteins

Livestock Production Science

Volumn 67, Issue 1-2, 2000, Pages 19-30

  Rodriguez Zas, Sandra L ^a,b   Gianola, Daniel ^a   Shook, George E ^a  

^a UNIVERSITY OF WISCONSIN MADISON   (United States)

^b UNIVERSITY OF ILLINOIS AT URBANA CHAMPAIGN   (United States)

Author keywords

Longitudinal data; Mastitis; Maximum likelihood; Nonlinear mixed effects models

Indexed keywords

EID: 0033665440     PISSN: 03016226     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0301-6226(00)00193-7     Document Type: Article

References (38)

1. A new look at the statistical model identification
2. An optimum transformation for somatic cell concentration in milk
3. Accounting for covariances among test day milk yields in dairy cows
4. Asymptotic properties of nonlinear mixed-effects models
5. Clinical mastitis in the population, epidemiology and genetics
6. Studies on somatic cell counts in milk from Swedish dairy cows. I. Non-genetic causes of variation in monthly test-day results
7. Studies on somatic cell counts in milk from Swedish dairy cows. II. Estimates of genetic parameters of monthly test-day results
8. Estimates of genetic parameters for first lactation test-day yields
9. Prediction of breeding value in situations with nonlinear structure, categorical responses, growth functions and lactation curves
10. Effects of teat dipping on intramammary infections by Staphylococci other than Staphylococcus aureus
11. Field survey of clinical mastitis in low somatic cell count herds
12. Heritability of somatic cell count and its relationship with milk yield and composition in Holsteins
13. Genetic and phenotypic statistics of lactation cell counts in different lactations of Holstein cows
14. A new approach to the mathematical formulation of lactation curves
15. Inverse polynomials, a useful group of multifactor response functions
16. Parsimonious modeling of longitudinal data
17. On the mathematical description of lactation curves
18. Estimating the dimension of a model
19. Asymptotic properties of maximum likelihood estimators and likelihood ratio tests under nonstandard conditions
20. Somatic cell count, electrical conductivity and albumin concentration for detecting bovine mastitis
21. Approaches to summarizing somatic cell counts which improve interpretability
22. Selection for disease resistance
23. Selection on somatic cell score to improve resistance to mastitis in the United States
24. Laplace approximation of high-dimensional integrals
25. Environmental mastitis, cause, prevalence and prevention
26. Gram-negative bacterial infections of the mammary gland
27. A note on the use of Laplace's approximation for nonlinear mixed-effects models
28. A lactation measure of somatic cell count
29. Adjustment of test-day milk, fat and protein yield for age, season and stage of lactation
30. Laplace's approximation for nonlinear mixed models
31. Two Taylor-series approximation methods for nonlinear mixed models
32. Algebraic model of the lactation curve in cattle