environmental variance


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Related to environmental variance: Genetic variance, additive genetic variance, genotypic variance, non-additive genetic variance

environmental variance

[in¦vī·ərn‚ment·əl ′ver·ē·əns]
(genetics)
That portion of the phenotypic variance caused by differences in the environments to which the individuals in a population have been exposed.
References in periodicals archive ?
Heritability for a particular DIM d in lactation were calculated by dividing the estimated genetic variance ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]) by the sum of permanent environmental variances ([sigma].
e] are polygenic and environmental variance components, and | is an identity matrix.
The magnitude of maternal permanent environmental variance as a proportion of phenotypic variance ([c.
Estimation of genetic and environmental variances (and co-variances) of (and between) carcass traits were performed with multiple trait Gibb's sampling to animal models variance component estimation procedure (MTGSAM version 1.
The results revealed that the estimate of direct heritability, maternal heritability and maternal permanent environmental variance as a proportion of phenotypic variance for birth and weaning weight was 0.
Teleservices agencies offer great tax revenue for the community, provide scores of jobs for its residents, including many who have difficulty finding employment in traditional 9 to 5 jobs, and to top it off, teleservices agencies have no special needs for environmental variances and the like.
Environmental variances were found to be relatively lower in the animal model analyses than those found in the sire models, as an opposite of the genetic variances, and those are possibly due to the presence of complete pedigree relationships in the animal model analyses.
The objective of this study was to estimate genetic and environmental variances of days to 90 kg body weight and ultrasound meat traits and covariances between these in purebred pig populations.
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