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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
29/10/2021 |
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Data da última atualização: |
29/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DINIZ, J. H. W.; PERES, R. F. G.; TEIXEIRA, A. C. B.; RIVEROS, J. A. N.; NORONHA, I. M.; MARTINS, C. F. G.; OLIVEIRA, C. S.; POHLER, K. G.; PUGLIESI, G.; OLIVEIRA, L. Z. |
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Afiliação: |
JULIANA HORTA WILKE DINIZ, Universidade Federal de Minas Gerais; ROGERIO FONSECA GUIMARÃES PERES; ANA CAROLINA BAHIA TEIXEIRA, Universidade Federal de Minas Gerais; JOSE ANDRES NIVIA RIVEROS, Universidade Federal de Minas Gerais; ISABELLA MARCONATO NORONHA; CÍCERO FLEURY GUEDES MARTINS; CLARA SLADE OLIVEIRA, CNPGL; KY GARRETT POHLER, Texas A&M University; GUILHERME PUGLIESI, Universidade de São Paulo; LETICIA ZOCCOLARO OLIVEIRA, Universidade Federal de Minas Gerais. |
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Título: |
Administration of PGF2 alpha at the moment of timed-AI using sex-sortedor conventional semen in suckled nelore cows with different intensityof estrus behavior. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Theriogenology, v. 74, 169e175, 2021. |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2021.08.023 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this work was to evaluate pregnancy rates (PR) and ovulatory characteristics of Nelore cows receiving PGF2a at the time of AI (artificial insemination) in a progesterone(P4)/estradiol-based timed-AI protocol. We also compared the effects of PGF2a treatment at AI in cows inseminated with conventional or sex-sorted semen, with the absence or expression of estrus. In experiment 1, a total of 701 suckled, multiparous Nelore cows from two commercial beef farms were submitted to the same protocol. All cows received a 12.5 mg (IM) injection of dinoprost tromethamine (Dinoprost; Lutalyse®; PGF treatment) at days 7 and 9 of a timed-AI protocol. Following P4 device removal (day 11; D11), AI was performed 48 h later with conventional or sex-sorted semen from two different sires. At AI, cows received an additional dose of 12.5 mg (IM) of Dinoprost (PGF treatment) or 2.5 mL (IM) of sterile saline (Control). Estrus behavior was determined at D11 by activation of an estrus detection device (Estrotect®). The overall PR was 32.8% (n ¼ 348) at Farm 1 and 42.3% (n ¼ 353) at Farm 2 (P ¼ 0.01). Despite PR differences between farms, the same factors affected PR at Farms 1 and 2. Body condition score (P ¼ 0.02), estrus behavior (P ¼ 0.01), and type of semen (P < 0.001) were factors affecting PR. Conventional semen had a 2.73x greater chance of successful pregnancy than sex-sorted semen. Cows displaying estrus had a 2.5x greater chance of successful pregnancy than cows that did not display estrus. No treatment effect (P ¼ 0.67) was detected in cows receiving conventional or sex-sorted semen. However, there was a tendency (P ¼ 0.08) for an interaction between treatment (PGF or control) and estrus behavior (estrus or no estrus). PGF2a at the time of AI tended to increase PR of cows that did not display estrus (P < 0.10). In experiment 2, 29 suckled, multiparous Nelore cows were compared using B-mode and Doppler ultrasongraphy to assess the ovulatory characteristics of cows receiving the 12.5 mg (IM) injection of Dinoprost (PGF treatment) or saline solution (control) at D11. No significant effects of PGF2a treatment at D11 were observed in follicular characteristics and/or ovulation performance. It was concluded that fertility of sex-sorted semen was lower than conventional semen, regardless of the PGF2a treatment. The 12.5 mg treatment of Dinoprost at AI did not accelerate the occurrence of ovulation; however, it was interesting to note that PGF2a treatment at timed-AI appeared to increase the fertility of cows that did not display estrus, independent of semen type. MenosThe aim of this work was to evaluate pregnancy rates (PR) and ovulatory characteristics of Nelore cows receiving PGF2a at the time of AI (artificial insemination) in a progesterone(P4)/estradiol-based timed-AI protocol. We also compared the effects of PGF2a treatment at AI in cows inseminated with conventional or sex-sorted semen, with the absence or expression of estrus. In experiment 1, a total of 701 suckled, multiparous Nelore cows from two commercial beef farms were submitted to the same protocol. All cows received a 12.5 mg (IM) injection of dinoprost tromethamine (Dinoprost; Lutalyse®; PGF treatment) at days 7 and 9 of a timed-AI protocol. Following P4 device removal (day 11; D11), AI was performed 48 h later with conventional or sex-sorted semen from two different sires. At AI, cows received an additional dose of 12.5 mg (IM) of Dinoprost (PGF treatment) or 2.5 mL (IM) of sterile saline (Control). Estrus behavior was determined at D11 by activation of an estrus detection device (Estrotect®). The overall PR was 32.8% (n ¼ 348) at Farm 1 and 42.3% (n ¼ 353) at Farm 2 (P ¼ 0.01). Despite PR differences between farms, the same factors affected PR at Farms 1 and 2. Body condition score (P ¼ 0.02), estrus behavior (P ¼ 0.01), and type of semen (P < 0.001) were factors affecting PR. Conventional semen had a 2.73x greater chance of successful pregnancy than sex-sorted semen. Cows displaying estrus had a 2.5x greater chance of successful pregnancy than cows that did not displ... Mostrar Tudo |
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Palavras-Chave: |
Dinoprost; Estrus behavior; ProstaglandinF2alpha; Sexed semen; Timed-AI. |
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Thesagro: |
Bovino; Inseminação Artificial; Prenhez; Reprodução Animal; Vaca. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03711naa a2200361 a 4500
001 2135711
005 2021-10-29
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2021.08.023$2DOI
100 1 $aDINIZ, J. H. W.
245 $aAdministration of PGF2 alpha at the moment of timed-AI using sex-sortedor conventional semen in suckled nelore cows with different intensityof estrus behavior.$h[electronic resource]
260 $c2021
520 $aThe aim of this work was to evaluate pregnancy rates (PR) and ovulatory characteristics of Nelore cows receiving PGF2a at the time of AI (artificial insemination) in a progesterone(P4)/estradiol-based timed-AI protocol. We also compared the effects of PGF2a treatment at AI in cows inseminated with conventional or sex-sorted semen, with the absence or expression of estrus. In experiment 1, a total of 701 suckled, multiparous Nelore cows from two commercial beef farms were submitted to the same protocol. All cows received a 12.5 mg (IM) injection of dinoprost tromethamine (Dinoprost; Lutalyse®; PGF treatment) at days 7 and 9 of a timed-AI protocol. Following P4 device removal (day 11; D11), AI was performed 48 h later with conventional or sex-sorted semen from two different sires. At AI, cows received an additional dose of 12.5 mg (IM) of Dinoprost (PGF treatment) or 2.5 mL (IM) of sterile saline (Control). Estrus behavior was determined at D11 by activation of an estrus detection device (Estrotect®). The overall PR was 32.8% (n ¼ 348) at Farm 1 and 42.3% (n ¼ 353) at Farm 2 (P ¼ 0.01). Despite PR differences between farms, the same factors affected PR at Farms 1 and 2. Body condition score (P ¼ 0.02), estrus behavior (P ¼ 0.01), and type of semen (P < 0.001) were factors affecting PR. Conventional semen had a 2.73x greater chance of successful pregnancy than sex-sorted semen. Cows displaying estrus had a 2.5x greater chance of successful pregnancy than cows that did not display estrus. No treatment effect (P ¼ 0.67) was detected in cows receiving conventional or sex-sorted semen. However, there was a tendency (P ¼ 0.08) for an interaction between treatment (PGF or control) and estrus behavior (estrus or no estrus). PGF2a at the time of AI tended to increase PR of cows that did not display estrus (P < 0.10). In experiment 2, 29 suckled, multiparous Nelore cows were compared using B-mode and Doppler ultrasongraphy to assess the ovulatory characteristics of cows receiving the 12.5 mg (IM) injection of Dinoprost (PGF treatment) or saline solution (control) at D11. No significant effects of PGF2a treatment at D11 were observed in follicular characteristics and/or ovulation performance. It was concluded that fertility of sex-sorted semen was lower than conventional semen, regardless of the PGF2a treatment. The 12.5 mg treatment of Dinoprost at AI did not accelerate the occurrence of ovulation; however, it was interesting to note that PGF2a treatment at timed-AI appeared to increase the fertility of cows that did not display estrus, independent of semen type.
650 $aBovino
650 $aInseminação Artificial
650 $aPrenhez
650 $aReprodução Animal
650 $aVaca
653 $aDinoprost
653 $aEstrus behavior
653 $aProstaglandinF2alpha
653 $aSexed semen
653 $aTimed-AI
700 1 $aPERES, R. F. G.
700 1 $aTEIXEIRA, A. C. B.
700 1 $aRIVEROS, J. A. N.
700 1 $aNORONHA, I. M.
700 1 $aMARTINS, C. F. G.
700 1 $aOLIVEIRA, C. S.
700 1 $aPOHLER, K. G.
700 1 $aPUGLIESI, G.
700 1 $aOLIVEIRA, L. Z.
773 $tTheriogenology$gv. 74, 169e175, 2021.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
10/12/2009 |
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Data da última atualização: |
25/02/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PEIXOTO, C. C.; TRINDADE, A. V.; CREQUEIRA, R. M. C.; MATOS, A. P. de. |
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Afiliação: |
Celma C. Peixoto, UFRB; ALDO VILAR TRINDADE, CNPMF; Rossana Maria Cláudio Cerqueira, UFBA; ARISTOTELES PIRES DE MATOS, CNPMF. |
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Título: |
Avaliação in vitro do potencial de rizobactérias contra Fusarium oxysporum f. sp. cubense agente causal do Mal-do-Panamá. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. |
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ISSN: |
1982-5676 |
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Idioma: |
Português |
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Notas: |
Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 210. |
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Conteúdo: |
Um dos principais problemas enfrentados pela cultura da banana, é o Mal-do-Panamá, causada pelo fungo Fusarium oxysporum f. sp. cubense (FOC). Doença de ocorrência generalizada em todas as regiões produtoras no mundo, altamente destrutiva, que tem seu controle fundamentado no plantio de cultivares tolerantes e resistentes. Este trabalho teve como objetivos isolar rizobactérias de plantas de bananeira, e avaliar seu potencial antagônico in vitro para o controle de Fusarium oxysporum f. sp. cubense. No isolamento, utilizando-se os meios King B e Mio B, foram encontrados diferentes grupos morfológicos de microrganismos, que variaram em função da cor, formação de halo ao redor das colônias e forma, obtendo-se 61 isolados bacterianos endofíticos e 148 isolados epifíticos, oriundos de raízes de bananeira de variedades 'Maçã', 'Grand naine' e 'Pioneira'. Destes, foram selecionados 48 isolados para realização de testes in vitro. A maioria dos agentes promissores nos testes in vitro de antagonismo ao Mal-do-Panamá foram obtidos do meio King B (MKB 6E, MKB 10, PKB 3e, GNKB 3e, GNKB 23, GNKB 6e, GNKB 4e, GNKB 30, GNKB24, GNKB 6, PKB 26, PKB 2e e PKB 7e), sendo apenas 6 isolados provenientes do Meio B (MB4, MB 6e, PB 39, PB 7e, PB 43 e PB 42). |
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Thesagro: |
Doença de Planta. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01987naa a2200193 a 4500
001 1656373
005 2010-02-25
008 2009 bl uuuu u00u1 u #d
022 $a1982-5676
100 1 $aPEIXOTO, C. C.
245 $aAvaliação in vitro do potencial de rizobactérias contra Fusarium oxysporum f. sp. cubense agente causal do Mal-do-Panamá.
260 $c2009
500 $aEdição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 210.
520 $aUm dos principais problemas enfrentados pela cultura da banana, é o Mal-do-Panamá, causada pelo fungo Fusarium oxysporum f. sp. cubense (FOC). Doença de ocorrência generalizada em todas as regiões produtoras no mundo, altamente destrutiva, que tem seu controle fundamentado no plantio de cultivares tolerantes e resistentes. Este trabalho teve como objetivos isolar rizobactérias de plantas de bananeira, e avaliar seu potencial antagônico in vitro para o controle de Fusarium oxysporum f. sp. cubense. No isolamento, utilizando-se os meios King B e Mio B, foram encontrados diferentes grupos morfológicos de microrganismos, que variaram em função da cor, formação de halo ao redor das colônias e forma, obtendo-se 61 isolados bacterianos endofíticos e 148 isolados epifíticos, oriundos de raízes de bananeira de variedades 'Maçã', 'Grand naine' e 'Pioneira'. Destes, foram selecionados 48 isolados para realização de testes in vitro. A maioria dos agentes promissores nos testes in vitro de antagonismo ao Mal-do-Panamá foram obtidos do meio King B (MKB 6E, MKB 10, PKB 3e, GNKB 3e, GNKB 23, GNKB 6e, GNKB 4e, GNKB 30, GNKB24, GNKB 6, PKB 26, PKB 2e e PKB 7e), sendo apenas 6 isolados provenientes do Meio B (MB4, MB 6e, PB 39, PB 7e, PB 43 e PB 42).
650 $aDoença de Planta
700 1 $aTRINDADE, A. V.
700 1 $aCREQUEIRA, R. M. C.
700 1 $aMATOS, A. P. de
773 $tTropical Plant Pathology, Brasília, DF$gv. 34, ago. 2009. Suplemento.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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