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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
08/10/2008 |
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Data da última atualização: |
02/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDRADE, P. C.; GROSSI, D. A.; PAZ, C. C. P.; ALENCAR, M. M. de; REGITANO, L. C. de A.; MUNARI, D. P. |
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Afiliação: |
P. C. ANDRADE, Unesp; D. A. GROSSI, Unesp; CLAUDIA C. P. PAZ, APTA; MAURICIO MELLO DE ALENCAR, CPPSE; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; D. P. MUNARI, Unesp. |
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Título: |
Association of an insulin-like growth factor 1 gene microsatelit with phenotypic variation and estimated breeding values of growth traits in Canchim cattle. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Animal Genetics, v. 39, p. 480-485, 2008. |
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DOI: |
https://doi.org/10.1111/j.1365-2052.2008.01755.x |
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Idioma: |
Inglês |
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Conteúdo: |
A population of 1398 Canchim (CA) cattle was genotyped to asses the association of na insulin-like growth factor 1 (IGF1) gene microsatellite with phenotypic variation and estimated breeding values of pre-weaning, weaning and post-weaning growth traits. After na initial analysis, the IGF1 genotype only had a significant effect (P < 0.05) on birth weight (BW) and weaning weight adjusted lo 240 days (WW240). For these two traits, direct and maternal breeding values were estimated using the restricted maximum likelihood (REML). Two analyses were carried out. In the first (Model I), all fixed effcts were fitted. In the second (Model II). The fixed effect of the IGF1 genotype was omitted. The estimated genetic and phenotypic components of variance were similar for every trait in both models. For Model I estimated direct and maternal herilabilities were 0.26 and 0.16 for BW and 0.23 and 0.14 for WW240 respectively. The genetic and phenotypic correlations between BW and WW240 were 0.38 and 0.38 (Model I) and 0.19 and 0.38 (Model II) respectively. Fifty animais were classified according to their direct and maternal breeding values for both traits. Spearman rank-order correlation between animal rankings in the two models was used 10 asses the effect of including the IGF1 genotype in the model. Non-significant values from this correlation were indicative of a difference in breeding value rankings between the two approaches. The IGF1 gene was found to be associated with phenotypic variation and breeding values in the early of growth. MenosA population of 1398 Canchim (CA) cattle was genotyped to asses the association of na insulin-like growth factor 1 (IGF1) gene microsatellite with phenotypic variation and estimated breeding values of pre-weaning, weaning and post-weaning growth traits. After na initial analysis, the IGF1 genotype only had a significant effect (P < 0.05) on birth weight (BW) and weaning weight adjusted lo 240 days (WW240). For these two traits, direct and maternal breeding values were estimated using the restricted maximum likelihood (REML). Two analyses were carried out. In the first (Model I), all fixed effcts were fitted. In the second (Model II). The fixed effect of the IGF1 genotype was omitted. The estimated genetic and phenotypic components of variance were similar for every trait in both models. For Model I estimated direct and maternal herilabilities were 0.26 and 0.16 for BW and 0.23 and 0.14 for WW240 respectively. The genetic and phenotypic correlations between BW and WW240 were 0.38 and 0.38 (Model I) and 0.19 and 0.38 (Model II) respectively. Fifty animais were classified according to their direct and maternal breeding values for both traits. Spearman rank-order correlation between animal rankings in the two models was used 10 asses the effect of including the IGF1 genotype in the model. Non-significant values from this correlation were indicative of a difference in breeding value rankings between the two approaches. The IGF1 gene was found to be associated with phenotypic vari... Mostrar Tudo |
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Palavras-Chave: |
Body weigth; Insulin like; Maximum likelihood; Microsatellite. |
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Thesagro: |
Bovino; Gado de Corte. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40892/1/PROCIMMA2008.00086.pdf
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Marc: |
LEADER 02403naa a2200265 a 4500
001 1048531
005 2023-05-02
008 2008 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/j.1365-2052.2008.01755.x$2DOI
100 1 $aANDRADE, P. C.
245 $aAssociation of an insulin-like growth factor 1 gene microsatelit with phenotypic variation and estimated breeding values of growth traits in Canchim cattle.$h[electronic resource]
260 $c2008
520 $aA population of 1398 Canchim (CA) cattle was genotyped to asses the association of na insulin-like growth factor 1 (IGF1) gene microsatellite with phenotypic variation and estimated breeding values of pre-weaning, weaning and post-weaning growth traits. After na initial analysis, the IGF1 genotype only had a significant effect (P < 0.05) on birth weight (BW) and weaning weight adjusted lo 240 days (WW240). For these two traits, direct and maternal breeding values were estimated using the restricted maximum likelihood (REML). Two analyses were carried out. In the first (Model I), all fixed effcts were fitted. In the second (Model II). The fixed effect of the IGF1 genotype was omitted. The estimated genetic and phenotypic components of variance were similar for every trait in both models. For Model I estimated direct and maternal herilabilities were 0.26 and 0.16 for BW and 0.23 and 0.14 for WW240 respectively. The genetic and phenotypic correlations between BW and WW240 were 0.38 and 0.38 (Model I) and 0.19 and 0.38 (Model II) respectively. Fifty animais were classified according to their direct and maternal breeding values for both traits. Spearman rank-order correlation between animal rankings in the two models was used 10 asses the effect of including the IGF1 genotype in the model. Non-significant values from this correlation were indicative of a difference in breeding value rankings between the two approaches. The IGF1 gene was found to be associated with phenotypic variation and breeding values in the early of growth.
650 $aBovino
650 $aGado de Corte
653 $aBody weigth
653 $aInsulin like
653 $aMaximum likelihood
653 $aMicrosatellite
700 1 $aGROSSI, D. A.
700 1 $aPAZ, C. C. P.
700 1 $aALENCAR, M. M. de
700 1 $aREGITANO, L. C. de A.
700 1 $aMUNARI, D. P.
773 $tAnimal Genetics$gv. 39, p. 480-485, 2008.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca |
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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; Embrapa Pesca e Aquicultura. |
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Data corrente: |
21/11/2018 |
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Data da última atualização: |
07/11/2019 |
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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: |
McMANUS, C.; FACO, O.; SHIOTSUKI, L.; ROLO, J. L. J. de P.; PERIPOLLI, V. |
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Afiliação: |
Concepta McManus, Universidade de Brasília (UnB) - Brasília, DF, Brazil; OLIVARDO FACO, CNPC; LUCIANA SHIOTSUKI, CNPASA; José Luiz Jivago de Paula Rolo, Instituto Federal Catarinense (IFC) - Campus Araquari, SC, Brazil; Vanessa Peripolli, Instituto Federal Catarinense (IFC) - Campus Araquari, SC, Brazil. |
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Título: |
Pedigree analysis of Brazilian Morada Nova hair sheep. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 170, p. 37-42, Jan. 2019. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2018.11.012 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The aim of this study was to describe the population structure of Morada Nova sheep breed using pedigree analysis to support development strategies for conservation and breeding programs. Data was available on 10,015 Morada Nova animals born between 1973 and 2014, registered by ARCO (Brazilian Association of Sheep Breeders). The animals were divided into three categories: (1) Base: animals of unknown origin showing strong breed morphology; (2) Prov: animals with genealogy control for one (Prov I), two (Prov II) or three (Prov III) complete generations; (3) PO: animals with four or more complete generations of controlled genealogy. Data was analyzed using the ENDOG software v4.8 to determine individual inbreeding (F), effective population size (Ne), effective number of founders (fe), effective number of ancestors (fa) and number of founder genome equivalents (fg), generation intervals (Int) and genetic conservation index (GCI), of the Morada Nova sheep breed. The Base population (one or more unknown parents) contained 4,709 animals. Only 53.03% and 52.98% had known sire and dam, respectively. Most animals were found in the Brazilian Northeast, but in recent years numbers have increased in São Paulo State. Generation interval in this breed was approximately 3.6 years. Most farms buy rams or semen which helps maintain low inbreeding levels, as well as using their own rams. There is a need to increase registration beyond Base animals and use pedigree to avoid crosses between related animals. Nevertheless, no immediate problems were seen for maintenance of genetic diversity within the Morada Nova sheep breed. MenosAbstract: The aim of this study was to describe the population structure of Morada Nova sheep breed using pedigree analysis to support development strategies for conservation and breeding programs. Data was available on 10,015 Morada Nova animals born between 1973 and 2014, registered by ARCO (Brazilian Association of Sheep Breeders). The animals were divided into three categories: (1) Base: animals of unknown origin showing strong breed morphology; (2) Prov: animals with genealogy control for one (Prov I), two (Prov II) or three (Prov III) complete generations; (3) PO: animals with four or more complete generations of controlled genealogy. Data was analyzed using the ENDOG software v4.8 to determine individual inbreeding (F), effective population size (Ne), effective number of founders (fe), effective number of ancestors (fa) and number of founder genome equivalents (fg), generation intervals (Int) and genetic conservation index (GCI), of the Morada Nova sheep breed. The Base population (one or more unknown parents) contained 4,709 animals. Only 53.03% and 52.98% had known sire and dam, respectively. Most animals were found in the Brazilian Northeast, but in recent years numbers have increased in São Paulo State. Generation interval in this breed was approximately 3.6 years. Most farms buy rams or semen which helps maintain low inbreeding levels, as well as using their own rams. There is a need to increase registration beyond Base animals and use pedigree to avoid crosses b... Mostrar Tudo |
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Palavras-Chave: |
Ancestors; Average relatedness; Conservation index; Founders; Herd structure; Pedigree livestock. |
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Thesagro: |
Melhoramento Genético Animal; Ovelha. |
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Thesaurus NAL: |
Animal breeders; Animal genetics; Breeding and Genetic Improvement; Inbreeding; Sheep. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02606naa a2200337 a 4500
001 2099767
005 2019-11-07
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.smallrumres.2018.11.012$2DOI
100 1 $aMcMANUS, C.
245 $aPedigree analysis of Brazilian Morada Nova hair sheep.$h[electronic resource]
260 $c2019
520 $aAbstract: The aim of this study was to describe the population structure of Morada Nova sheep breed using pedigree analysis to support development strategies for conservation and breeding programs. Data was available on 10,015 Morada Nova animals born between 1973 and 2014, registered by ARCO (Brazilian Association of Sheep Breeders). The animals were divided into three categories: (1) Base: animals of unknown origin showing strong breed morphology; (2) Prov: animals with genealogy control for one (Prov I), two (Prov II) or three (Prov III) complete generations; (3) PO: animals with four or more complete generations of controlled genealogy. Data was analyzed using the ENDOG software v4.8 to determine individual inbreeding (F), effective population size (Ne), effective number of founders (fe), effective number of ancestors (fa) and number of founder genome equivalents (fg), generation intervals (Int) and genetic conservation index (GCI), of the Morada Nova sheep breed. The Base population (one or more unknown parents) contained 4,709 animals. Only 53.03% and 52.98% had known sire and dam, respectively. Most animals were found in the Brazilian Northeast, but in recent years numbers have increased in São Paulo State. Generation interval in this breed was approximately 3.6 years. Most farms buy rams or semen which helps maintain low inbreeding levels, as well as using their own rams. There is a need to increase registration beyond Base animals and use pedigree to avoid crosses between related animals. Nevertheless, no immediate problems were seen for maintenance of genetic diversity within the Morada Nova sheep breed.
650 $aAnimal breeders
650 $aAnimal genetics
650 $aBreeding and Genetic Improvement
650 $aInbreeding
650 $aSheep
650 $aMelhoramento Genético Animal
650 $aOvelha
653 $aAncestors
653 $aAverage relatedness
653 $aConservation index
653 $aFounders
653 $aHerd structure
653 $aPedigree livestock
700 1 $aFACO, O.
700 1 $aSHIOTSUKI, L.
700 1 $aROLO, J. L. J. de P.
700 1 $aPERIPOLLI, V.
773 $tSmall Ruminant Research$gv. 170, p. 37-42, Jan. 2019.
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Embrapa Caprinos e Ovinos (CNPC) |
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