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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
01/02/2016 |
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Data da última atualização: |
01/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FIQUEIRA, L. M.; FONSECA, J. F. da; ARASHIRO, E. K. N.; SOUZA-FABJAN, J. M. G.; RIBEIRO, A. C. S.; OBA, E.; VIANA, J. H. M.; BRANDÃO, F. Z. |
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Afiliação: |
L. M. Figueira, Universidade Federal Fluminense - RJ; JEFERSON FERREIRA DA FONSECA, CNPC; E. K. N. Arashiro; J. M. G. Souza-Fabjan, Universidade Federal Flumiense, RJ; A. C. S. Ribeiro, Universidade Federal Flumiense, RJ; E. Oba, Universidade Estadual Paulista, SP; JOAO HENRIQUE MOREIRA VIANA, CNPGL; F. Z. Brandão, Universidade Federal Flumiense, RJ. |
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Título: |
Colour Doppler Ultrasonography as a Tool to Assess Luteal Function in Santa Inês Ewes. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 50, n. 4, p. 643-650, 2015. |
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Idioma: |
Português |
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Conteúdo: |
Abstract: The aim of this study was to evaluate luteal dynamics in the Santa Inês ewes using colour Doppler (CD) ultrasonography. Oestrus was synchronized in nulliparous females (n = 18), and subsequently, they were only teased (n = 6) or teased and mated (n = 12). Blood samples were collected daily for plasma progesterone (P4 ) concentrations. Ultrasonographic images of corpora lutea (CL) in CD mode were obtained for further analysis in its largest diameter. The CD mode allowed an early sequential monitoring of CL that was visualized by the first time 0.77 ± 0.62 days after ovulation, with luteal area 29.68 ± 13.21 mm2 . During the luteogenesis, a progressive increase was observed, followed by a plateau of luteal area, vascularization area and plasma concentrations of P4 reaching maximum values in D11 (124.0 ± 38.0 mm2 , 52.78 ± 24.08 mm2 and 11.23 ± 4.89 ng/ml, respectively). In the luteolysis, the plasma concentrations of P4 decreased sharply, whereas luteal and vascularization area gradually. The vascularization area was positively correlated with plasma concentrations of P4 during the luteogenesis (r = 0.22) and luteolysis (r = 0.48). The luteal dynamics of Santa Inês ewes showed patterns similar to those observed in other sheep breeds studied. The CD ultrasonography has the potential to be used as a tool to assess luteal function in sheep. |
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Palavras-Chave: |
Dinâmica folicular; Luteal dynamics; Oestrous cycle; Plasma progesterone; Progesterona plasmática; Raça Santa Inês; Synchronization; Synchronized females; Ultra-Som. |
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Thesagro: |
Ciclo estral; Ovino; Ovulação; Reprodução animal; Sincronização do cio. |
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Thesaurus Nal: |
Animal reproduction; Ovulation; Sheep; Ultrasonography. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02578naa a2200421 a 4500
001 2035666
005 2024-02-01
008 2015 bl uuuu u00u1 u #d
100 1 $aFIQUEIRA, L. M.
245 $aColour Doppler Ultrasonography as a Tool to Assess Luteal Function in Santa Inês Ewes.$h[electronic resource]
260 $c2015
520 $aAbstract: The aim of this study was to evaluate luteal dynamics in the Santa Inês ewes using colour Doppler (CD) ultrasonography. Oestrus was synchronized in nulliparous females (n = 18), and subsequently, they were only teased (n = 6) or teased and mated (n = 12). Blood samples were collected daily for plasma progesterone (P4 ) concentrations. Ultrasonographic images of corpora lutea (CL) in CD mode were obtained for further analysis in its largest diameter. The CD mode allowed an early sequential monitoring of CL that was visualized by the first time 0.77 ± 0.62 days after ovulation, with luteal area 29.68 ± 13.21 mm2 . During the luteogenesis, a progressive increase was observed, followed by a plateau of luteal area, vascularization area and plasma concentrations of P4 reaching maximum values in D11 (124.0 ± 38.0 mm2 , 52.78 ± 24.08 mm2 and 11.23 ± 4.89 ng/ml, respectively). In the luteolysis, the plasma concentrations of P4 decreased sharply, whereas luteal and vascularization area gradually. The vascularization area was positively correlated with plasma concentrations of P4 during the luteogenesis (r = 0.22) and luteolysis (r = 0.48). The luteal dynamics of Santa Inês ewes showed patterns similar to those observed in other sheep breeds studied. The CD ultrasonography has the potential to be used as a tool to assess luteal function in sheep.
650 $aAnimal reproduction
650 $aOvulation
650 $aSheep
650 $aUltrasonography
650 $aCiclo estral
650 $aOvino
650 $aOvulação
650 $aReprodução animal
650 $aSincronização do cio
653 $aDinâmica folicular
653 $aLuteal dynamics
653 $aOestrous cycle
653 $aPlasma progesterone
653 $aProgesterona plasmática
653 $aRaça Santa Inês
653 $aSynchronization
653 $aSynchronized females
653 $aUltra-Som
700 1 $aFONSECA, J. F. da
700 1 $aARASHIRO, E. K. N.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aRIBEIRO, A. C. S.
700 1 $aOBA, E.
700 1 $aVIANA, J. H. M.
700 1 $aBRANDÃO, F. Z.
773 $tReproduction in Domestic Animals$gv. 50, n. 4, p. 643-650, 2015.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
30/10/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
JOAQUIM, L. B.; CHUD, T. C. S.; MARCHESI, J. A. P.; SAVEGNAGO, R. P.; BUZANKAS, M. E.; ZANELLA, R.; CANTAO, M. E.; PEIXOTO, J. de O.; LEDUR, M. C.; IRGANG, R.; MUNARI, D. P. |
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Afiliação: |
LETÍCIA BORGES JOAQUIM, UNESP/Jaboticabal; TATIANE CRISTINA SELEGUIM CHUD, UNESP/Jaboticabal; JORGE AUGUSTO PETROLLI MARCHESI, UNESP/Jaboticabal; RODRIGO PELICIONI SAVEGNAGO, UNESP/Jaboticabal; MARCOS ELI BUZANSKAS, UFPB; RICARDO ZANELLA, UPF; MAURICIO EGIDIO CANTAO, CNPSA; JANE DE OLIVEIRA PEIXOTO, CNPSA; MONICA CORREA LEDUR, CNPSA; RENATO IRGANG, UFSC; DANÍSIO PRADO MUNARI, UNESP/Jaboticabal. |
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Título: |
Genomic structure of a crossbred landrace pig population. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Plos One, v. 14, n.2, e0212266, 2019. |
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DOI: |
10.1371/journal.pone.0212266 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Single nucleotide polymorphism (SNP) markers are used to study population structure and conservation genetics, which permits assessing similarities regarding the linkage disequilibrium and information about the relationship among individuals. To investigate the population genomic structure of 300 females and 25 males from a commercial maternal pig line we analyzed linkage disequilibrium extent, inbreeding coefficients using genomic and conventional pedigree data, and population stratification. The average linkage disequilibrium (r2 ) was 0.291 ± 0.312 for all adjacent SNPs, distancing less than 100 Kb (kilobase) between markers. The average inbreeding coefficients obtained from runs of homozygosity (ROH) and pedigree analyses were 0.119 and 0.0001, respectively. Low correlation was observed between the inbreeding coefficients possibly as a result of genetic recombination effect accounted for the ROH estimates or caused by pedigree identification errors. A large number of long ROHs might indicate recent inbreeding events in the studied population. A total of 36 homozygous segments were found in more than 30% of the population and these ROH harbor genes associated with reproductive traits. The population stratification analysis indicated that this population was possibly originated from two distinct populations, which is a result from crossings between the eastern and western breeds used in the formation of the line. Our findings provide support to understand the genetic structure of swine populations and may assist breeding companies to avoid a high level of inbreeding coefficients to maintain genetic diversity, showing the effectiveness of using genomewide SNP information for quantifying inbreeding when the pedigree was incomplete or incorrect. MenosAbstract: Single nucleotide polymorphism (SNP) markers are used to study population structure and conservation genetics, which permits assessing similarities regarding the linkage disequilibrium and information about the relationship among individuals. To investigate the population genomic structure of 300 females and 25 males from a commercial maternal pig line we analyzed linkage disequilibrium extent, inbreeding coefficients using genomic and conventional pedigree data, and population stratification. The average linkage disequilibrium (r2 ) was 0.291 ± 0.312 for all adjacent SNPs, distancing less than 100 Kb (kilobase) between markers. The average inbreeding coefficients obtained from runs of homozygosity (ROH) and pedigree analyses were 0.119 and 0.0001, respectively. Low correlation was observed between the inbreeding coefficients possibly as a result of genetic recombination effect accounted for the ROH estimates or caused by pedigree identification errors. A large number of long ROHs might indicate recent inbreeding events in the studied population. A total of 36 homozygous segments were found in more than 30% of the population and these ROH harbor genes associated with reproductive traits. The population stratification analysis indicated that this population was possibly originated from two distinct populations, which is a result from crossings between the eastern and western breeds used in the formation of the line. Our findings provide support to understand the gen... Mostrar Tudo |
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Palavras-Chave: |
SNP. |
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Thesagro: |
Genética; Marcador Genético; Polimorfismo Genético; Suíno. |
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Thesaurus NAL: |
Genetic markers; Genomics; Polymorphism; Swine. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02737naa a2200361 a 4500
001 2113663
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0212266$2DOI
100 1 $aJOAQUIM, L. B.
245 $aGenomic structure of a crossbred landrace pig population.$h[electronic resource]
260 $c2019
520 $aAbstract: Single nucleotide polymorphism (SNP) markers are used to study population structure and conservation genetics, which permits assessing similarities regarding the linkage disequilibrium and information about the relationship among individuals. To investigate the population genomic structure of 300 females and 25 males from a commercial maternal pig line we analyzed linkage disequilibrium extent, inbreeding coefficients using genomic and conventional pedigree data, and population stratification. The average linkage disequilibrium (r2 ) was 0.291 ± 0.312 for all adjacent SNPs, distancing less than 100 Kb (kilobase) between markers. The average inbreeding coefficients obtained from runs of homozygosity (ROH) and pedigree analyses were 0.119 and 0.0001, respectively. Low correlation was observed between the inbreeding coefficients possibly as a result of genetic recombination effect accounted for the ROH estimates or caused by pedigree identification errors. A large number of long ROHs might indicate recent inbreeding events in the studied population. A total of 36 homozygous segments were found in more than 30% of the population and these ROH harbor genes associated with reproductive traits. The population stratification analysis indicated that this population was possibly originated from two distinct populations, which is a result from crossings between the eastern and western breeds used in the formation of the line. Our findings provide support to understand the genetic structure of swine populations and may assist breeding companies to avoid a high level of inbreeding coefficients to maintain genetic diversity, showing the effectiveness of using genomewide SNP information for quantifying inbreeding when the pedigree was incomplete or incorrect.
650 $aGenetic markers
650 $aGenomics
650 $aPolymorphism
650 $aSwine
650 $aGenética
650 $aMarcador Genético
650 $aPolimorfismo Genético
650 $aSuíno
653 $aSNP
700 1 $aCHUD, T. C. S.
700 1 $aMARCHESI, J. A. P.
700 1 $aSAVEGNAGO, R. P.
700 1 $aBUZANKAS, M. E.
700 1 $aZANELLA, R.
700 1 $aCANTAO, M. E.
700 1 $aPEIXOTO, J. de O.
700 1 $aLEDUR, M. C.
700 1 $aIRGANG, R.
700 1 $aMUNARI, D. P.
773 $tPlos One$gv. 14, n.2, e0212266, 2019.
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Embrapa Suínos e Aves (CNPSA) |
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