Results 11 to 20 of about 942,198 (289)

Genetic parameters and genetic trends in the Chinese x European Tiameslan composite pig line. I. Genetic parameters [PDF]

open access: yesGenetics 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
openaire   +5 more sources

Estimation of Heritability and Genetic Correlation of Quantitative Traits as a Basis for Selection Program of Indonesian Native Chickens [PDF]

open access: yesBIO Web of Conferences
Native chicken is a potential genetic source to produce new superior and productive strains. The genetic parameter information is needed as basis data for the selection program to improve the genetic quality of native chickens.
Suyatno Suyatno   +4 more
doaj   +1 more source

Cosmological Parameter Estimation with Genetic Algorithms

open access: yesUniverse, 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
openaire   +3 more sources

Computing approximate standard errors for genetic parameters derived from random regression models fitted by average information REML

open access: yesGenetics 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
doaj   +1 more source

Genetic analysis of fetal loss in Holstein cattle

open access: yesJournal 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
doaj   +1 more source

Genomic loci and genetic parameters for uterine diseases in first-parity Holstein cows and associations with milk production and fertility

open access: yesJournal 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
doaj   +1 more source

Application of a single-objective, hybrid genetic algorithm approach to pharmacokinetic model building. [PDF]

open access: yes, 2012
A limitation in traditional stepwise population pharmacokinetic model building is the difficulty in handling interactions between model components. To address this issue, a method was previously introduced which couples NONMEM parameter estimation and ...
Belani, Chandra P   +12 more
core   +3 more sources

Giraffe translocation population viability analysis [PDF]

open access: yes, 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
core   +1 more source

Dynamic Parameter Encoding for Genetic Algorithms [PDF]

open access: yesMachine 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
openaire   +2 more sources

Parâmetros genéticos para coelhos da raça Califórnia criados no Brasil Genetic parameters for Californian rabbits raised in Brazil

open access: yesArquivo 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
doaj   +1 more source

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