| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
23/01/2017 |
|
Data da última atualização: |
30/01/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PEREZ, B. C.; PEIXOTO, M. G. C. D.; BRUNELI, F. A. T.; RAMOS, P. V. B.; BALIEIRO, J. C. C. |
|
Afiliação: |
B. C. Perez; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; FRANK ANGELO TOMITA BRUNELI, CNPGL; P.V.B. Ramos; J. C. C. Balieiro. |
|
Título: |
Genetic analysis of oocyte and embryo production traits in Guzerá breed donors and their associations with age at first calving. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Genetics and Molecular Research, v. 15, n. 2, 2016. |
|
Páginas: |
9 p. |
|
Idioma: |
Português |
|
Conteúdo: |
Abstract: The objective of this study was to estimate variance components for oocyte and embryo production traits in Guzerá breed female donors, and investigate their associations with age at first calving (AFC). The traits analyzed were the number of viable oocytes (NOV), the number of grade I oocytes (NGI), the number of cleaved embryos (NCLV), and viable embryos produced (NEMB), and the percentages of viable oocytes (POV), grade I oocytes (PGI), cleaved embryos (PCLV), and viable embryos (PEMB). Data were obtained from 5173 ovary puncture and in vitro fertilization (IVF) sessions using 1080 Guzerá female donors of different ages, occurred from March 2005 to July 2013. Variables were log-transformed (logeX+1) prior to analysis. (Co)variance components were estimated by restricted maximum likelihood (REML), using one- and two-trait animal models. Permanent environment and IVF sire (father of the embryos) random effects were included. Estimated heritabilities for NOV, NGI, NCLV, NEMB, POV, PGI, PCLV, and PEMB were 0.19, 0.08, 0.16, 0.14, 0.04, 0.03, 0.01, and 0.07, respectively. Repeatabilities for count traits (NOV, NGI, NCLV, and NEMB) varied from 0.14 and 0.32, higher than estimated for percentage traits (POV, PGI, PCLV, and PEMB), which varied from 0.01 to 0.08. Selection for NOV may be more appropriate in breeding programs than selection for NEMB, because of its strong genetic correlation (0.68) with NEMB and its greater time- and cost-effectiveness. AFC was only weakly associated with the oocyte and embryo production traits, which indicates that there would be no effect on AFC when selecting for these traits. MenosAbstract: The objective of this study was to estimate variance components for oocyte and embryo production traits in Guzerá breed female donors, and investigate their associations with age at first calving (AFC). The traits analyzed were the number of viable oocytes (NOV), the number of grade I oocytes (NGI), the number of cleaved embryos (NCLV), and viable embryos produced (NEMB), and the percentages of viable oocytes (POV), grade I oocytes (PGI), cleaved embryos (PCLV), and viable embryos (PEMB). Data were obtained from 5173 ovary puncture and in vitro fertilization (IVF) sessions using 1080 Guzerá female donors of different ages, occurred from March 2005 to July 2013. Variables were log-transformed (logeX+1) prior to analysis. (Co)variance components were estimated by restricted maximum likelihood (REML), using one- and two-trait animal models. Permanent environment and IVF sire (father of the embryos) random effects were included. Estimated heritabilities for NOV, NGI, NCLV, NEMB, POV, PGI, PCLV, and PEMB were 0.19, 0.08, 0.16, 0.14, 0.04, 0.03, 0.01, and 0.07, respectively. Repeatabilities for count traits (NOV, NGI, NCLV, and NEMB) varied from 0.14 and 0.32, higher than estimated for percentage traits (POV, PGI, PCLV, and PEMB), which varied from 0.01 to 0.08. Selection for NOV may be more appropriate in breeding programs than selection for NEMB, because of its strong genetic correlation (0.68) with NEMB and its greater time- and cost-effectiveness. AFC was only weakly... Mostrar Tudo |
|
Palavras-Chave: |
Bivariate analysis; Genetic parameter; Ovum pick-up; Permanent environment; Zebu cattle. |
|
Thesaurus Nal: |
in vitro fertilization. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153751/1/Cnpgl-2016-GMR-Genetic.pdf
|
|
Marc: |
LEADER 02432naa a2200253 a 4500
001 2061463
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aPEREZ, B. C.
245 $aGenetic analysis of oocyte and embryo production traits in Guzerá breed donors and their associations with age at first calving.$h[electronic resource]
260 $c2016
300 $a9 p.
520 $aAbstract: The objective of this study was to estimate variance components for oocyte and embryo production traits in Guzerá breed female donors, and investigate their associations with age at first calving (AFC). The traits analyzed were the number of viable oocytes (NOV), the number of grade I oocytes (NGI), the number of cleaved embryos (NCLV), and viable embryos produced (NEMB), and the percentages of viable oocytes (POV), grade I oocytes (PGI), cleaved embryos (PCLV), and viable embryos (PEMB). Data were obtained from 5173 ovary puncture and in vitro fertilization (IVF) sessions using 1080 Guzerá female donors of different ages, occurred from March 2005 to July 2013. Variables were log-transformed (logeX+1) prior to analysis. (Co)variance components were estimated by restricted maximum likelihood (REML), using one- and two-trait animal models. Permanent environment and IVF sire (father of the embryos) random effects were included. Estimated heritabilities for NOV, NGI, NCLV, NEMB, POV, PGI, PCLV, and PEMB were 0.19, 0.08, 0.16, 0.14, 0.04, 0.03, 0.01, and 0.07, respectively. Repeatabilities for count traits (NOV, NGI, NCLV, and NEMB) varied from 0.14 and 0.32, higher than estimated for percentage traits (POV, PGI, PCLV, and PEMB), which varied from 0.01 to 0.08. Selection for NOV may be more appropriate in breeding programs than selection for NEMB, because of its strong genetic correlation (0.68) with NEMB and its greater time- and cost-effectiveness. AFC was only weakly associated with the oocyte and embryo production traits, which indicates that there would be no effect on AFC when selecting for these traits.
650 $ain vitro fertilization
653 $aBivariate analysis
653 $aGenetic parameter
653 $aOvum pick-up
653 $aPermanent environment
653 $aZebu cattle
700 1 $aPEIXOTO, M. G. C. D.
700 1 $aBRUNELI, F. A. T.
700 1 $aRAMOS, P. V. B.
700 1 $aBALIEIRO, J. C. C.
773 $tGenetics and Molecular Research$gv. 15, n. 2, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 523 | |
| 2. |  | ARAUJO, G. G. L. de. Alternativas alimentares para caprinos e ovinos no semi-árido. In: SEMINÁRIO NORDESTINO DE PECUÁRIA, 7.; FEIRA DE PRODUTOS E DE SERVIÇOS AGROPECUÁRIOS, 7.; ATIVIDADES NÃO AGRÍCOLAS NO MEIO RURAL; CLÍNICAS TECNOLÓGICAS; ENCONTRO DE NEGÓCIOS, 2003, Fortaleza. Palestras técnicas: caprino-ovinocultura. Fortaleza: FAEC, 2003. v. 5, p. 61-80.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
|    |
| 4. | | ARAUJO, G. G. L. de. Estratégias de suplementação de ruminantes. In: GOMIDE, C. A. de M.; RANGEL, J. H. de A.; MUNIZ, E. N.; ALMEIDA, S. A.; SÁ, J. L. de; SÁ, C. O. de (Ed.). Alternativas alimentares para ruminantes. Aracaju: Embrapa Tabuleiros Costeiros, 2006. cap. 6, p. 101-117.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
| |
| 7. | | ARAUJO, G. G. L. de. A produção animal. In: SEMINÁRIO: ESTRATÉGIAS PARA UMA GESTÃO MUNICIPAL DE CONVIVÊNCIA COM O SEMIÁRIDO, 2009, Petrolina. Palestras... Petrolina: Embrapa Semiárido, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Semiárido. |
| |
| 13. | | TURCO, S. H. N.; ARAUJO, G. G. L. de. Instalações. In: VOLTOLINI, T. V. (Ed.). Produção de caprinos e ovinos no Semiárido. Petrolina: Embrapa Semiárido, 2011. cap. 5, p. 117-144,| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
| |
| 16. | | TURCO, S. H. N.; ARAUJO, G. G. L. de. Construções rurais no Semiárido. In: REIS, A. H.; OLIVEIRA, L. M. S. R. de (Org.). Universidade e intervivência: diálogo possível entre os movimentos sociais e a academia. Belo Horizonte: Manuscritos, 2011. p. 389-408. il.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
|  |
| 18. | | ANTONIO, R. P.; ARAUJO, G. G. L. de. Manihot spp.: Maniçoba. In: CORADIN, L.; CAMILLO, J.; PAREYN, F. G. C. (Ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro: região Nordeste. Brasília, DF: MMA, 2018. Cap. 5, p.707-718 il. color. (Série Biodiversidade, 51).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
| |
| Registros recuperados : 523 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
