Background: Many studies have provided evidence of the existence of genetic heterogeneity of environmental variance, suggesting that it could be exploited to improve robustness and uniformity of livestock by selection. However, little is known about the perspectives of such a selection strategy in beef cattle.Methods: A two-step approach was applied to study the genetic heterogeneity of residual variance of weight gain from birth to weaning and long-yearling weight in a Nellore beef cattle population. First, an animal model was fitted to the data and second, the influence of additive and environmental effects on the residual variance of these traits was investigated with different models, in which the log squared estimated residuals for eac...
The objective of this study was to estimate (co)variance components and genetic parameters for live ...
Identification of genotype-environment interaction in beef cattle may help the artificial selection ...
ABSTRACT We aimed to estimate genetic parameters for growth traits of Polled Nellore beef cattle. Ad...
AbstractThis study was carried out to provide an exploratory analysis of genetic variability of resi...
This study was carried out to provide an exploratory analysis of genetic variability of residual var...
There is evidence for genetic variability in residual variance of livestock traits, which offers the...
Random regression models are currently used in genetic evaluation of beef cattle, because they allow...
The objective was to evaluate the existence of heterogeneity of variances and its impact on the gene...
Abstract: We used 138,976 records of information of body weights ranging from 60 to 610 days of age,...
In one study three variants of an animal model were used to estimate variance components for birth (...
Records of birth weight (BW) and weights standardized to 210 (W210); 365 (W365) and 550 (W550) of ag...
Abstract Background In livestock, residual variance has been studied because of the interest to impr...
We aimed to estimate genetic parameters for growth traits of Polled Nellore beef cattle. Adjusted we...
The variance in phenotypic trait values is a product of environmental and genetic variation. The sen...
O objetivo deste estudo foi investigar, por meio de dados simulados, o efeito da heterogeneidade de ...
The objective of this study was to estimate (co)variance components and genetic parameters for live ...
Identification of genotype-environment interaction in beef cattle may help the artificial selection ...
ABSTRACT We aimed to estimate genetic parameters for growth traits of Polled Nellore beef cattle. Ad...
AbstractThis study was carried out to provide an exploratory analysis of genetic variability of resi...
This study was carried out to provide an exploratory analysis of genetic variability of residual var...
There is evidence for genetic variability in residual variance of livestock traits, which offers the...
Random regression models are currently used in genetic evaluation of beef cattle, because they allow...
The objective was to evaluate the existence of heterogeneity of variances and its impact on the gene...
Abstract: We used 138,976 records of information of body weights ranging from 60 to 610 days of age,...
In one study three variants of an animal model were used to estimate variance components for birth (...
Records of birth weight (BW) and weights standardized to 210 (W210); 365 (W365) and 550 (W550) of ag...
Abstract Background In livestock, residual variance has been studied because of the interest to impr...
We aimed to estimate genetic parameters for growth traits of Polled Nellore beef cattle. Adjusted we...
The variance in phenotypic trait values is a product of environmental and genetic variation. The sen...
O objetivo deste estudo foi investigar, por meio de dados simulados, o efeito da heterogeneidade de ...
The objective of this study was to estimate (co)variance components and genetic parameters for live ...
Identification of genotype-environment interaction in beef cattle may help the artificial selection ...
ABSTRACT We aimed to estimate genetic parameters for growth traits of Polled Nellore beef cattle. Ad...