Now showing items 1-6 of 6
Comparison of different nonlinear functions to describe Nelore cattle growth
(Journal of Animal Science, 2009-02-01) [Artigo]
This work aims to compare different nonlinear functions for describing the growth curves of Nelore females. The growth curve parameters, their (co) variance components, and environmental and genetic effects were estimated ...
Bayesian analysis of random regression models using B-splines to model test-day milk yield of Holstein cattle in Brazil
(Livestock Science, 2012-12-01) [Artigo]
The objective of this paper is to model variations in test-day milk yields of first lactations of Holstein cows by RR using B-spline functions and Bayesian inference in order to fit adequate and parsimonious models for the ...
Short communication: Principal components and factor analytic models for test-day milk yield in Brazilian Holstein cattle
(Journal of Dairy Science, 2012-04-01) [Artigo]
A total of 46,089 individual monthly test-day (TD) milk yields (10 test-days), from 7,331 complete first lactations of Holstein cattle were analyzed. A standard multivariate analysis (MV), reduced rank analyses fitting the ...
Effect of lactation length adjustment procedures on genetic parameter estimates for buffalo milk yield
(Genetics and Molecular Biology, 2011-01-01) [Artigo]
The objectives of this study were to estimate the genetic parameters for milk yield unadjusted and adjusted for days in milk and, subsequently, to assess the influence of adjusting for days in milk on sire rank. Complete ...
Evaluation of TFAM and FABP4 gene polymorphisms in three lines of Nellore cattle selected for growth
(Genetics and Molecular Research, 2010-01-01) [Resumo]
We analyzed the polymorphisms TFAM HaeIII, TFAM MboI and FABP4 MspA1I in three Nellore lines selected for growth in order to evaluate how selection affects the frequencies of these polymorphisms and evaluate their association ...
Results of 23 years of selection for post-weaning weight in a Caracu beef herd
(South African Journal of Animal Science, 2008-01-01) [Artigo]
Data from 1 698 animals belonging to all experimental Caracu herd were analysed with the objective of calculating the Population selection differentials, generation intervals, effective size and inbreeding coefficients, ...