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Claw health and feed efficiency as new selection criteria in the Czech Holstein cattle Krupová Z., Wolfová M., Krupa E., Přibyl J., Zavadilová L.
dairy cattle breeding objective selection index economic weights prognosis
2018/11/23
The objective of this study was to calculate economic weights for ten current breeding objective traits and for four new traits characterising claw health and feed efficiency in Czech Holstein cattle ...
Effect of age at first calving on longevity and fertility traits for Holstein cattle
functional traits survival analysis linear model cattle
2015/6/24
Effects of age at first calving (AFC) on functional longevity of Czech Holstein cows and their reproduction traits in the first lactation were analyzed using the first lactation data of 605 538 Holste...
Variability of Osteocalcin Status in Chinese Holstein Cattle: Do Phylogeny, Vitamin D or Gene Polymorphisms Matter?
Osteocalcin Vitamin D Population Structure Single Nucleotide Polymorphisms D-loop Bos taurus
2016/5/6
Osteocalcin (OC), a marker of bone turnover, displays patterns in relation to physiological and genetic factors. Here, we present an association study in a population of Chinese Holstein cattle (n = 2...
Genetic parameters for test-day model with random regressions for production traits of Czech Holstein cattle
test-day yields random regression model genetic parameters Czech Holstein cattle
2015/6/1
Multiple-lactation random regression model was applied to test-day records of milk, fat and protein yields in the first three lactations of the Czech Holstein breed. Data included 9 583 cows, 89 584, ...
Genetic evaluation of the length of productive life in Holstein cattle in the Czech Republic
length of productive life cattle survival analysis heritability
2015/6/1
Survival Kit V3.12 was used to analyse the length of productive life of cattle in theCzechRepublic. The data set consisted of 230 028 registeredHolstein cows. The model included the time-dependent eff...