Results 11 to 20 of about 945,949 (268)
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 parameters and genetic trends in the Chinese x European Tiameslan composite pig line. I. Genetic parameters [PDF]
Genetics Selection Evolution, 2000 Genetic parameters of body weight at 4 (W4w), 8 (W8w) and 22 (W22w) 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 (NBA) and weaned (NW) per litter, and birth to weaning survival rate (SURV) were estimated in the ...
Zhang, Siqing +4 more
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Cosmological Parameter Estimation with Genetic Algorithms
Universe, 2023 Genetic algorithms are a powerful tool in optimization for single and multimodal functions. This paper provides an overview of their fundamentals with some analytical examples. In addition, we explore how they can be used as a parameter estimation tool in cosmological models to maximize the likelihood function, complementing the analysis with the ...
Ricardo Medel-Esquivel +4 more
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Genetic analysis of fetal loss in Holstein cattle
Journal of Dairy Science, 2022 : Pregnancy loss is recognized as one of the major factors contributing to poor reproductive performance in dairy cattle. Here, we performed a comprehensive genetic analysis of fetal loss, defined as a pregnancy loss that occurs after detection of a ...
Anil Sigdel +2 more
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Genetics Selection Evolution, 2004 Approximate standard errors (ASE) of variance components for random regression coefficients are calculated from the average information matrix obtained in a residual maximum likelihood procedure.
Gilmour Arthur R +2 more
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Journal of Dairy Science, 2022 : Based on the clinical stage (e.g., vaginal discharge) and bacterial species, several forms of uterine diseases (UD) exist and can be classified as different traits [i.e., different stages of endometritis (EM) and metritis (MET)], which may differ in ...
Katharina May +3 more
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Giraffe translocation population viability analysis [PDF]
, 2020 Most populations of giraffes have declined in recent decades, leading to the recent IUCN decision to upgrade the species to Vulnerable status, and some subspecies to Endangered.
Carter, Kerryn D. +7 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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Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2000 Registros de pesos de 3.249 coelhos, nascidos de 1980 a 1996 e, dados de pedigree de 4.857 coelhos da raça Califórnia, criados no Campus da USP de Pirassununga, São Paulo, submetidos à seleção por três gerações, com base em valores genéticos de pesos à ...
M.G. Paula, J.B.S. Ferraz, J.P. Eler
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