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Test-day model for milk yield of dairy buffaloes in colombia
(2011-07-01)
The test-day model is the preferred method for genetic evaluations in dairy cattle. For this study, 28372 test-day records of 1220 lactations from 1997 to 2009 were used. The (co)variance components for milk in test-day ...
Test-day model for milk yield of dairy buffaloes in colombia
(2011-07-01)
The test-day model is the preferred method for genetic evaluations in dairy cattle. For this study, 28372 test-day records of 1220 lactations from 1997 to 2009 were used. The (co)variance components for milk in test-day ...
Estimation of genetic parameters for milk yield using a random regression test-day model in first parity dairy cows under pasture-based systems of Los Ríos region in Chile
(Universidad Austral de Chile, 2020)
In dairy cattle, genetic selection for milk yield was generally based on 305 days lactation records that were calculated from available monthly test-day milk yield records. A test-day milk yield record, multiplied by the ...
Estimation of genetic parameters for test-day milk yield in Holstein cows using a random regression model
(Genetics and Molecular Biology, 2019)
Random regression models using different functions to model test-day milk yield of Brazilian Holstein cows
(Funpec-editora, 2011-01-01)
We analyzed 152,145 test-day records from 7317 first lactations of Holstein cows recorded from 1995 to 2003. Our objective was to model variations in test-day milk yield during the first lactation of Holstein cows by random ...
Random regression models using different functions to model test-day milk yield of Brazilian Holstein cows
(Funpec-editora, 2011-01-01)
We analyzed 152,145 test-day records from 7317 first lactations of Holstein cows recorded from 1995 to 2003. Our objective was to model variations in test-day milk yield during the first lactation of Holstein cows by random ...
Effect of test year, parity number and days in milk on somatic cell count in dairy cows of Los Rios region in Chile
(Universidad Austral de Chile, Facultad de Ciencias Veterinarias, 2020)
In Chile, most dairy cattle are located in the southern region of the country, where the largest volume of milk is produced. This study aimed to quantify changes of somatic cell count (SCC) over 20 years in 11 herds of the ...
Estimation of genetic parameters for milk yield using a random regression test-day model in first parity dairy cows under pasture-based systems of Los Ríos region in ChileEstimation of genetic parameters for milk yield using a random regression test-day model in first parity dairy cows under pasture-based systems of Los Ríos region in Chile
(Faculty of Veterinary Sciences - Universidad Austral de Chile, 2020)
Effect of test year, parity number and days in milk on somatic cell count in dairy cows of Los Ríos region in ChileEffect of test year, parity number and days in milk on somatic cell count in dairy cows of Los Ríos region in Chile
(Faculty of Veterinary Sciences - Universidad Austral de Chile, 2020)