Results 1 to 10 of about 12,859,837 (351)
Genetic parameters and genetic trends in the Chinese × European
Genetic parameters of body weight at 4 (W4 w), 8 (W8 w) and 22 (W22 w) weeks of age, days from 20 to 100 kg (DT), average backfat thickness at 100 kg (ABT), teat number (TEAT), number of good teats (GTEAT), total number of piglets born (TNB), born alive (
Legault Christian +4 more
doaj +5 more sources
Key Genetic Parameters for Population Management [PDF]
Population management has the primary task of maximizing the long-term competitiveness of a breed. Breeds compete with each other for being able to supply consumer demands at low costs and also for funds from conservation programs. The competition for consumer preference is won by breeds with high genetic gain for total merit who maintained a ...
Wellmann, Robin, Bennewitz, Jörn
openaire +4 more sources
Recurrent Interpopulation Selection in Popcorn: From Heterosis to Genetic Gains
In view of the need to develop new popcorn cultivars and considering the uncertainties in choosing the most appropriate breeding methods to ensure consistent genetic progress, simultaneously for both popping expansion and grain yield, this study ...
Divino Rosa dos Santos Junior +11 more
doaj +1 more source
Estimated genetic parameters for all genetically evaluated traits in Canadian Holsteins.
Genetic improvement is a crucial tool to deal with the increasing demand for high quality, sustainably produced dairy. Breeding programs are based on genetic parameters, such as heritability and genetic correlations, for economically important traits in ...
G. A. Oliveira Júnior +5 more
semanticscholar +1 more source
Genetic variability for vigor and yield of robusta coffee (Coffea canephora) clones in Ghana
Effectiveness of plant improvement programs, especially in perennial crops like coffee, may be improved by knowing the level of genetic variation which exist within a breeding population coupled with the knowledge of estimates of genetic parameters for ...
Abraham Akpertey +3 more
doaj +1 more source
COMPARISON OF QUANTITATIVE GENETIC PARAMETERS [PDF]
Shaw (1991) has described a maximum-likelihood procedure for comparing genetic covariance matrices between populations. While her efforts to expand the procedures available for quantitative genetic analyses are laudable, her discussion is incomplete in several respects. For example, consider her criticism of Dietz's matrix permutation test (Dietz, 1983)
David E, Cowley, William R, Atchley
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Estimation of quantitative genetic parameters [PDF]
This paper gives a short review of the development of genetic parameter estimation over the last 40 years. This shows the development of more statistically and computationally efficient methods that allow the fitting of more biologically appropriate models. Methods have evolved from direct methods based on covariances between relatives to methods based
Thompson, R. +2 more
openaire +2 more sources
Genetic Analyses of Rabbit Survival and Individual Birth Weight
Genetic parameters of kit survival traits and birth weight were estimated on ITELV2006 synthetic line aimed at improving kit survival using a multiple trait linear and threshold model.
Rafik Belabbas +9 more
doaj +1 more source
Changes in genetic parameters for fitness and growth traits in pigs under genomic selection
Genomic selection increases accuracy and decreases generation interval, speeding up genetic changes in the populations. However, intensive changes caused by selection can reduce the genetic variation and can strengthen undesirable genetic correlations ...
J. Hidalgo +6 more
semanticscholar +1 more source
The objective of this study was to estimate genetic parameters for the analyzed fertility traits of Polish Holstein-Friesian primiparous and multiparous cows, as a step toward the incorporation of new traits into routine genetic evaluation.
Agnieszka Otwinowska-Mindur +3 more
doaj +1 more source

