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Genetic evaluation for functional longevity in Polish Simmental cattle
cattle Polish Simmentals productive life Weibull proportional hazards model
2017/6/22
The Weibull proportional hazards model was applied for genetic evaluation of functional longevity in Polish Simmentals. Data consisted of production and disposal records for 12 527 Simmental cows, dau...
Genetic relationship of functional longevity with female fertility and milk production traits in Czech Holsteins
Holstein cattle genetic parameters milk yield functional traits
2015/6/24
The objectives of this study were to estimate heritabilities of and genetic correlations among longevity, milk production, and female fertility traits of Holstein cows. Fertility traits were days open...
Analysis of longevity in the Slovak Pinzgau population – extension to the animal model
Pinzgau cattle survival analysis breeding value genetic variability reliability heritability
2015/6/24
Breeding values for length of productive life in Slovak Pinzgau cattle were estimated using survival analysis. As the results were corrected for milk production, the final breeding values represented ...