Results 41 to 50 of about 17,467,711 (295)

Pedigree analysis in the Polish Red cattle population

open access: yesAnimal, 2021
The objective of this study was to describe the population structure and inbreeding level of the population of Polish Red Cattle (PRC). The structure of the breed was analysed in the context of the existing genetic resources conservation programme.
O. Jarnecka, E.A. Bauer, W. Jagusiak
doaj   +1 more source

Melhoramento e estrutura populacional em bubalinos da raça Mediterrâneo no Brasil Improvement and population structure of Mediterranean water buffaloes raised in Brazil

open access: yesPesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar a estrutura populacional e os progressos genéticos, fenotípicos e ambientais de características de desenvolvimento ponderal, em bubalinos da raça Mediterrâneo. Foram utilizadas informações dos pesos ajustados aos 205,
Carlos Henrique Mendes Malhado   +5 more
doaj   +1 more source

Population structure of Nellore cattle in northeastern Brazil

open access: yesRevista Brasileira de Zootecnia, 2013
The objective of this study was to evaluate the population genetic structure of Nellore cattle in northeastern Brazil. Pedigree information was collected from 175,231 animals born from 1967 to 2007.
Ana Carla Borges Barbosa   +6 more
doaj   +1 more source

Estimativa de ganho genético a partir de diferenciais de seleção e parâmetros populacionais em um rebanho Caracu Estimates of genetic gain based on selection differentials and population parameters in a herd of Caracu cattle

open access: yesRevista Brasileira de Zootecnia, 2005
Foram analisados dados do rebanho Caracu da Estação Experimental de Zootecnia de Sertãozinho, selecionado para peso ao sobreano entre os anos de 1979 e 2002, com os objetivos de descrever o tamanho efetivo, o coeficiente de geração, o intervalo de ...
Márcio Cinachi Pereira   +3 more
doaj   +1 more source

The effect of neighborhood size on effective population size in theory and in practice [PDF]

open access: yesHeredity, 2016
The distinction between the effective size of a population (Ne) and the effective size of its neighborhoods (Nn) has sometimes become blurred. Ne reflects the effect of random sampling on the genetic composition of a population of size N, whereas Nn is a measure of within-population spatial genetic structure and depends strongly on the dispersal ...
openaire   +4 more sources

Genetic Diversity and Structure of Calophyllum brasiliense Along the Santa Catarina Coast

open access: yesFloresta e Ambiente, 2019
Population genetics studies can provide knowledge in support of conservation efforts for plant populations. We studied the genetic diversity and structure in nine populations of Calophyllum brasiliense from Santa Catarina state, Brazil, aiming to ...
Fernando André Loch Santos da Silva   +4 more
doaj   +1 more source

Individual increase in inbreeding allows estimating effective sizes from pedigrees

open access: yesGenetics Selection Evolution, 2008
We present here a simple approach to obtain reliable estimates of the effective population size in real world populations via the computation of the increase in inbreeding for each individual (delta Fi) in a given population.
Valera Mercedes   +4 more
doaj   +1 more source

The Idiot's Guide to Effective Population Size

open access: yesMolecular Ecology
This is a reference manual for the elegant, yet hideously complex concept of effective population size (Ne), inspired by a classic, self‐published manual of automotive repair ‘for the compleat idiot’.
R. Waples
semanticscholar   +1 more source

Do estimates of contemporary effective population size tell us what we want to know?

open access: yesMolecular Ecology, 2019
Estimation of effective population size (Ne) from genetic marker data is a major focus for biodiversity conservation because it is essential to know at what rates inbreeding is increasing and additive genetic variation is lost.
N. Ryman, L. Laikre, O. Hössjer
semanticscholar   +1 more source

Size dependent of the effective conductivity of composite with imperfect interfaces

open access: yesVietnam Journal of Mechanics, 2020
Based on the circle assemblage model, the effective properties of the inclusion with imperfect interface are derived. The equivalent inclusion is incorporated in the Fourier Transform algorithm to determine the effective conductivity of the composite ...
Nguyen Trung Kien
doaj   +1 more source

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