Bivariate animal model estimates of genetic, phenotypic, and environmental correlations for production, reproduction, and somatic cells in Jerseys.

Abstract excerpt

Correlations were obtained between 18 response variables of a Jersey herd (Florida Agricultural Experiment Station, Gainesville) for 374 first lactations. Estimates were from the use of multivariate, derivative-free, restricted maximum likelihood procedures with the simplex method of partial maximization. Estimates agreed closely with those obtained previously by other methods in this and other dairy populations....

Topics

• Animals
• Breeding
• Cattle
• Cell Count
• Environment
• Female
• Lactation
• Male
• Milk
• Models, Genetic
• Models, Statistical
• Phenotype