Buscar
Mostrando ítems 1-10 de 542
Breeding value accuracy estimates for growth traits using random regression and multi-trait models in Nelore cattle
(Funpec-editora, 2011-01-01)
We quantified the potential increase in accuracy of expected breeding value for weights of Nelore cattle, from birth to mature age, using multi-trait and random regression models on Legendre polynomials and B-spline ...
Breeding value accuracy estimates for growth traits using random regression and multi-trait models in Nelore cattle
(Funpec-editora, 2011-01-01)
We quantified the potential increase in accuracy of expected breeding value for weights of Nelore cattle, from birth to mature age, using multi-trait and random regression models on Legendre polynomials and B-spline ...
Random regression models to estimate test-day milk yield genetic parameters Holstein cows in Southeastern Brazil
(Elsevier B.V., 2009-07-01)
A total of 152,145 weekly test-day milk yield records from 7317 first lactations of Holstein cows distributed in 93 herds in southeastern Brazil were analyzed. Test-day milk yields were classified into 44 weekly classes ...
Random regression models to estimate test-day milk yield genetic parameters Holstein cows in Southeastern Brazil
(Elsevier B.V., 2009-07-01)
A total of 152,145 weekly test-day milk yield records from 7317 first lactations of Holstein cows distributed in 93 herds in southeastern Brazil were analyzed. Test-day milk yields were classified into 44 weekly classes ...
Polynomials to model the growth of young bulls in performance tests
(Cambridge University Press, 2014-03-01)
The use of polynomial functions to describe the average growth trajectory and covariance functions of Nellore and MA (21/32 Charolais+11/32 Nellore) young bulls in performance tests was studied. The average growth trajectories ...
Random regression models using Legendre polynomials or linear splines for test-day milk yield of dairy Gyr (Bos indicus) cattle
(2013-01-01)
Studies investigating the use of random regression models for genetic evaluation of milk production in Zebu cattle are scarce. In this study, 59,744 test-day milk yield records from 7,810 first lactations of purebred dairy ...
Random regression models using Legendre polynomials or linear splines for test-day milk yield of dairy Gyr (Bos indicus) cattle
(2013-01-01)
Studies investigating the use of random regression models for genetic evaluation of milk production in Zebu cattle are scarce. In this study, 59,744 test-day milk yield records from 7,810 first lactations of purebred dairy ...