Results 11 to 20 of about 947,581 (290)
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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Journal of Dairy Science, 2023 : The aim of this study was to estimate genetic parameters for milk urea (MU) content in 3 main Danish dairy breeds. As a part of the Danish milk recording system, milk samples from cows on commercial farms were analyzed for MU concentration (mmol/L) and
A.J. Buitenhuis, N.A. Poulsen
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Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females [PDF]
Animal Bioscience, 2021 Objective The objective of the study was to investigate the possibility of utilizing an early litter size trait as an indirect selection trait for longevity and to estimate genetic parameters between sow stayability and litter size at different parities ...
Suppasit Plaengkaeo +2 more
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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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Frontiers in Genetics, 2022 The aim of this study was to investigate the genetic parameters and genetic architectures of six milk production traits in the Shanghai Holstein population.
Dengying Liu +10 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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GENETIC PARAMETER ESTIMATION OF DYSTOCIA VARIABLE IN IRANIAN HOLSTEIN DAIRY CATTLE [PDF]
Basrah Journal of Veterinary Research, 2016 aim of this study was to estimated genetic parameters of dystocia variable in Holsteindairy cows in Iran. For this purpose we used of data set that related to 734 herds of Holsteincows in Iran that was collected from 24 years ago (between 1990-2014) by ...
Karami Maryam +5 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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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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Animal, 2020 Community-based breeding programs (CBBPs) for small ruminants have been suggested as alternatives to centralised, government-controlled breeding schemes which have been implemented in many developing countries.
A. Haile +18 more
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