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Genetic control of residual variance of yearling weight in Nellore beef cattle
(Amer Soc Animal Science, 2017-04-01)
There is evidence for genetic variability in residual variance of livestock traits, which offers the potential for selection for increased uniformity of production. Different statistical approaches have been employed to ...
Genetics and genomics of uniformity and resilience in livestock and aquaculture species: A review
(2020-05-01)
Genetic control of residual variance offers opportunities to increase uniformity and resilience of livestock and aquaculture species. Improving uniformity and resilience of animals will improve health and welfare of animals ...
Evaluating gene by sex and age interactions on cardiovascular risk factors in Brazilian families
(BIOMED CENTRAL LTD, 2010)
Background: In family studies, it is important to evaluate the impact of genes and environmental factors on traits of interest. In particular, the relative influences of both genes and the environment may vary in different ...
Models for multi-environment yield trials with fixed and random block effects and homogeneous and heterogeneous residual variancesModelos para ensayos varietales multiambientales con efectos de bloques fijos y aleatorios y varianzas residuales homogéneas y heterogéneas
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 2007)
Genetic and environmental heterogeneity of residual variance of weight traits in Nellore beef cattle
(Biomed Central Ltd., 2012-06-06)
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. ...
Genetic and environmental heterogeneity of residual variance of weight traits in Nellore beef cattle
(Biomed Central Ltd., 2012-06-06)
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. ...
A multilevel analysis of the returns to education in Ecuador. The multifaceted impact of human capital
(Alexandru Ioan Cuza University, 2016)
This paper analyses the returns to education in Ecuador based on cross-sectional data collected by a National Survey at the individual- and canton-levels in 2005 and 2015. The multilevel analysis provides the methodological ...
Modelos de regressão aleatória na avaliação genética do crescimento de ovinos da raça Santa Inês
(2010-08-01)
It was used 17,767 weight records of 4,210 Santa Inês breed lambs aiming to compare random regression models with different structures to model the residual variance in genetic studies of the growth curve. The fixed effects ...
Genomic regions underlying uniformity of yearling weight in Nellore cattle evaluated under different response variables
(2018-08-16)
Background: In livestock, residual variance has been studied because of the interest to improve uniformity of production. Several studies have provided evidence that residual variance is partially under genetic control; ...