Results 1 to 10 of about 957,136 (168)
Genetic parameters and genetic trends in the Chinese × European
Genetics Selection Evolution, 2000 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
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Recurrent Interpopulation Selection in Popcorn: From Heterosis to Genetic Gains
Plants, 2023 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
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Genetic variability for vigor and yield of robusta coffee (Coffea canephora) clones in Ghana
Heliyon, 2022 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
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COMPARISON OF QUANTITATIVE GENETIC PARAMETERS [PDF]
Evolution, 1992 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]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2005 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
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Genetic Analyses of Rabbit Survival and Individual Birth Weight
Animals, 2022 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
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Dynamic Parameter Encoding for Genetic Algorithms [PDF]
Machine Learning, 1992 The common use of static binary place-value codes for real-valued parameters of the phenotype in Holland's genetic algorithm (GA) forces either the sacrifice of representational precision for efficiency of search or vice versa. Dynamic Parameter Encoding (DPE) is a mechanism that avoids this dilemma by using convergence statistics derived from the GA ...
Nicol N. Schraudolph, Richard K. Belew
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Animals, 2022 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
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Mljekarstvo, 2020 In order to estimate the variance components as well as the breeding value for daily milk production of Holstein cows in terms of heat stress defined as different THI threshold values (68, 70, and 72) 1,275,713 test-day records from 90,159 cows were used.
Goran Vučković +7 more
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Bayesian threshold analysis of litter size in sheep
Revista Colombiana de Ciencias Pecuarias, 2022 Background: Litter size at birth (LSB) is one of the most important economic traits in sheep and could be used in genetic improvement schemes for meat production.
Amin Mortazavi +5 more
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