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| Registros recuperados : 116 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
15/07/2020 |
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Data da última atualização: |
11/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PAIVA, R. D. M.; SOUSA, J. E. R. de; FERREIRA, J.; CUNHA, E. C.; PAIVA, M. P. S. L. M. de; GOUVEIA, A. M. G.; FACO, O. |
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Afiliação: |
RENATO DIÓGENES MACEDO PAIVA, Federal Rural University of the Semi-arid Region (UFERSA) - Mossoró - RN, Brazil; JOSÉ ERNANDES RUFINO DE SOUSA, Federal Rural University of the Semi-arid Region (UFERSA) - Mossoró - RN, Brazil; JOSIEL FERREIRA, Federal Rural University of the Semi-arid Region (UFERSA) - Mossoró - RN, Brazil; ELIZÂNGELA EMÍDIO CUNHA, Federal Rural University of the Semi-arid Region (UFERSA) - Natal - RN, Brazil; MARIA PIA SOUZA LIMA MATTOS DE PAIVA, Caprileite - Associação dos Criadores de Caprinos e Ovinos - Belo Horizonte, MG, Brazil; AURORA MARIA GUIMARÃES GOUVEIA, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; OLIVARDO FACO, CNPC. |
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Título: |
Population structure and effect of inbreeding on milk yield of Saanen goats in Brazilian production systems. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 192, e106194, Nov. 2020. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2020.106194 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The aim of this study was to evaluate the history of a population of Saanen goats based on the population structure and the effect of inbreeding on accumulated 305-d milk yield (MY305) and lactation length (LL). Pedigree data of 7,640 individuals born between 1997 and 2014 were analyzed for pedigree and population parameters were estimated based on the probability of gene origin, effective population size (Ne), average inbreeding (F), flock classification according to origin and use of breeding animals, average relatedness coefficient (AR), pedigree completeness and number of generations using the ENDOG v4.8 software program. A total of 79.57%, 50.73%, 29.10%, and 11.60% of the examined individuals had pedigrees in the first, second, third and fourth ancestry, respectively. The total number of founders and ancestors was 123 and 101, respectively, and 39 of the latter explained 50% of the genetic variability in the population, which indicates a loss of original genes. The AR and F coefficient were 0.78 and 1.48, respectively. There was no significant inbreeding effect on LL. The MY305 was significantly affected by inbreeding, with a reduction of 2.31?kg per 1% increase in the individual inbreeding coefficient. The LL and MY305 exhibited heritability of 0.03 and 0.18 respectively, with a genetic correlation of 0.97. |
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Palavras-Chave: |
Effective population; Genetic variability; Inbreeding drepression. |
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Thesaurus NAL: |
Animal genetics; Breeding and Genetic Improvement; Dairy goats; Genetic variation; Lactation. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02299naa a2200301 a 4500
001 2123861
005 2024-01-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.smallrumres.2020.106194$2DOI
100 1 $aPAIVA, R. D. M.
245 $aPopulation structure and effect of inbreeding on milk yield of Saanen goats in Brazilian production systems.$h[electronic resource]
260 $c2020
520 $aAbstract: The aim of this study was to evaluate the history of a population of Saanen goats based on the population structure and the effect of inbreeding on accumulated 305-d milk yield (MY305) and lactation length (LL). Pedigree data of 7,640 individuals born between 1997 and 2014 were analyzed for pedigree and population parameters were estimated based on the probability of gene origin, effective population size (Ne), average inbreeding (F), flock classification according to origin and use of breeding animals, average relatedness coefficient (AR), pedigree completeness and number of generations using the ENDOG v4.8 software program. A total of 79.57%, 50.73%, 29.10%, and 11.60% of the examined individuals had pedigrees in the first, second, third and fourth ancestry, respectively. The total number of founders and ancestors was 123 and 101, respectively, and 39 of the latter explained 50% of the genetic variability in the population, which indicates a loss of original genes. The AR and F coefficient were 0.78 and 1.48, respectively. There was no significant inbreeding effect on LL. The MY305 was significantly affected by inbreeding, with a reduction of 2.31?kg per 1% increase in the individual inbreeding coefficient. The LL and MY305 exhibited heritability of 0.03 and 0.18 respectively, with a genetic correlation of 0.97.
650 $aAnimal genetics
650 $aBreeding and Genetic Improvement
650 $aDairy goats
650 $aGenetic variation
650 $aLactation
653 $aEffective population
653 $aGenetic variability
653 $aInbreeding drepression
700 1 $aSOUSA, J. E. R. de
700 1 $aFERREIRA, J.
700 1 $aCUNHA, E. C.
700 1 $aPAIVA, M. P. S. L. M. de
700 1 $aGOUVEIA, A. M. G.
700 1 $aFACO, O.
773 $tSmall Ruminant Research$gv. 192, e106194, Nov. 2020.
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