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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
23/08/2023 |
Data da última atualização: |
23/08/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
RODRIGUES, J. N. D.; GUIMARÃES. J. D.; RANGEL, P. S. C.; OLIVEIRA, M. E. F.; BRANDÃO, F. Z.; BARTLEWSKI, P. M.; FONSECA, J. F. da. |
Afiliação: |
JULIANA NASCIMENTO DUARTE RODRIGUES, UNIVERSIDADE FEDERAL DE VIÇOSA, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; JOSÉ DOMINGOS GUIMARÃES, UNIVERSIDADE FEDERAL DE VIÇOSA; PAULO SERGIO CERQUEIRA RANGEL, UNIVERSIDADE FEDERAL DE VIÇOSA; MARIA EMILIA FRANCO OLIVEIRA, UNIVERSIDADE ESTADUAL PAULISTA; FELIPE ZANDONADI BRANDÃO, UNIVERSIDADE FEDERAL FLUMINENSE; PAWEL MIECZYSLAW BARTLEWSKI, UNIVERSITY OF GUELPH; JEFERSON FERREIRA DA FONSECA, CNPC. |
Título: |
Ovarian function and pregnancy rates in dairy goats that received 300 IU of human chorionic gonadotropin (hCG) intravaginally at the time of artificial insemination. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Small Ruminant Research, v. 227, e107061, Oct. 2023. |
DOI: |
https://doi.org/10.1016/j.smallrumres.2023.107061 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Two experiments were carried out to evaluate the effects of administering 300 IU hCG intravaginally (i.vag.) at the time of artificial insemination (AI) on ovulatory response, luteal function and pregnancy rates in cyclic Alpine (A) and Saanen (S) goats. All animals received two i.m. injections of 37.5 ?g of d-cloprostenol (Prolise®; Tecnopec, São Paulo, SP, Brazil) at 11.5-day (Experiments 1 and 2) or 7.5-day intervals (Experiment 2). One day after the onset of estrus (day of AI=D0), the goats were randomly allocated to one of the two groups that received: 300 IU hCG (Vetecor®; Hertape-Calier, São Paulo, SP, Brazil) i.vag. (G-hCG; Experiment 1: n = 12 A; Experiment 2: n = 80 A + 63 S) or 0.3 mL or saline solution i.vag. (G-Control; Experiment 1: n = 12 A; Experiment 2: n = 82 A + 65 S). Blood samples for measurements of circulating progesterone concentrations were drawn on both days of d-cloprostenol injections and on D3, D7, D10, D13 and D21 (Experiment 1). Transrectal ovarian ultrasonography was done on D7, D10, D13, D17 and D21 (Experiment 1), and pregnancy detection was performed on D60 (Experiment 2). In Experiment 1, there were no differences (P > 0.05) in the mean diameter of ovulatory follicles, timing and number of ovulations, and incidence of early luteal regression between the two groups of goats. However, the total luteal area on D17 and D21 and luteal vascularization on D10 and D13 were higher (P < 0.05) in G-hCG compared with G-Control does. In Experiment 2, the pregnancy rate was higher (P < 0.05) in G-hCG compared with G-Control goats (80.4% compared with 67.3%, respectively). Human chorionic gonadotropin (300 IU) given i.vag. at the time of AI did not alter ovulatory response or progesterone secretory ability of resultant corpora lutea nor did it completely prevent premature luteal regression, but it increased the luteal area and luteal vascularization as well as the conception rate in dairy goats (the latter by 13.1%). MenosAbstract: Two experiments were carried out to evaluate the effects of administering 300 IU hCG intravaginally (i.vag.) at the time of artificial insemination (AI) on ovulatory response, luteal function and pregnancy rates in cyclic Alpine (A) and Saanen (S) goats. All animals received two i.m. injections of 37.5 ?g of d-cloprostenol (Prolise®; Tecnopec, São Paulo, SP, Brazil) at 11.5-day (Experiments 1 and 2) or 7.5-day intervals (Experiment 2). One day after the onset of estrus (day of AI=D0), the goats were randomly allocated to one of the two groups that received: 300 IU hCG (Vetecor®; Hertape-Calier, São Paulo, SP, Brazil) i.vag. (G-hCG; Experiment 1: n = 12 A; Experiment 2: n = 80 A + 63 S) or 0.3 mL or saline solution i.vag. (G-Control; Experiment 1: n = 12 A; Experiment 2: n = 82 A + 65 S). Blood samples for measurements of circulating progesterone concentrations were drawn on both days of d-cloprostenol injections and on D3, D7, D10, D13 and D21 (Experiment 1). Transrectal ovarian ultrasonography was done on D7, D10, D13, D17 and D21 (Experiment 1), and pregnancy detection was performed on D60 (Experiment 2). In Experiment 1, there were no differences (P > 0.05) in the mean diameter of ovulatory follicles, timing and number of ovulations, and incidence of early luteal regression between the two groups of goats. However, the total luteal area on D17 and D21 and luteal vascularization on D10 and D13 were higher (P < 0.05) in G-hCG compared with G-Control does. In Exper... Mostrar Tudo |
Palavras-Chave: |
Época de reprodução; HCG; Ovary; Synchronized females. |
Thesagro: |
Cabra Leiteira; Caprino; Corpo Lúteo; Eficiência Reprodutiva; Inseminação Artificial; Ovário; Prenhez; Reprodução; Sincronização do Cio; Ultrassom. |
Thesaurus Nal: |
Animal ovaries; Artificial insemination; Breeding season; Corpus luteum; Dairy goats; Estrus synchronization; Human chorionic gonadotropin; Pregnancy rate; Progesterone; Reproduction; Reproductive performance; Ultrasonography. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03566naa a2200517 a 4500 001 2156060 005 2023-08-23 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.smallrumres.2023.107061$2DOI 100 1 $aRODRIGUES, J. N. D. 245 $aOvarian function and pregnancy rates in dairy goats that received 300 IU of human chorionic gonadotropin (hCG) intravaginally at the time of artificial insemination.$h[electronic resource] 260 $c2023 520 $aAbstract: Two experiments were carried out to evaluate the effects of administering 300 IU hCG intravaginally (i.vag.) at the time of artificial insemination (AI) on ovulatory response, luteal function and pregnancy rates in cyclic Alpine (A) and Saanen (S) goats. All animals received two i.m. injections of 37.5 ?g of d-cloprostenol (Prolise®; Tecnopec, São Paulo, SP, Brazil) at 11.5-day (Experiments 1 and 2) or 7.5-day intervals (Experiment 2). One day after the onset of estrus (day of AI=D0), the goats were randomly allocated to one of the two groups that received: 300 IU hCG (Vetecor®; Hertape-Calier, São Paulo, SP, Brazil) i.vag. (G-hCG; Experiment 1: n = 12 A; Experiment 2: n = 80 A + 63 S) or 0.3 mL or saline solution i.vag. (G-Control; Experiment 1: n = 12 A; Experiment 2: n = 82 A + 65 S). Blood samples for measurements of circulating progesterone concentrations were drawn on both days of d-cloprostenol injections and on D3, D7, D10, D13 and D21 (Experiment 1). Transrectal ovarian ultrasonography was done on D7, D10, D13, D17 and D21 (Experiment 1), and pregnancy detection was performed on D60 (Experiment 2). In Experiment 1, there were no differences (P > 0.05) in the mean diameter of ovulatory follicles, timing and number of ovulations, and incidence of early luteal regression between the two groups of goats. However, the total luteal area on D17 and D21 and luteal vascularization on D10 and D13 were higher (P < 0.05) in G-hCG compared with G-Control does. In Experiment 2, the pregnancy rate was higher (P < 0.05) in G-hCG compared with G-Control goats (80.4% compared with 67.3%, respectively). Human chorionic gonadotropin (300 IU) given i.vag. at the time of AI did not alter ovulatory response or progesterone secretory ability of resultant corpora lutea nor did it completely prevent premature luteal regression, but it increased the luteal area and luteal vascularization as well as the conception rate in dairy goats (the latter by 13.1%). 650 $aAnimal ovaries 650 $aArtificial insemination 650 $aBreeding season 650 $aCorpus luteum 650 $aDairy goats 650 $aEstrus synchronization 650 $aHuman chorionic gonadotropin 650 $aPregnancy rate 650 $aProgesterone 650 $aReproduction 650 $aReproductive performance 650 $aUltrasonography 650 $aCabra Leiteira 650 $aCaprino 650 $aCorpo Lúteo 650 $aEficiência Reprodutiva 650 $aInseminação Artificial 650 $aOvário 650 $aPrenhez 650 $aReprodução 650 $aSincronização do Cio 650 $aUltrassom 653 $aÉpoca de reprodução 653 $aHCG 653 $aOvary 653 $aSynchronized females 700 1 $aGUIMARÃES. J. D. 700 1 $aRANGEL, P. S. C. 700 1 $aOLIVEIRA, M. E. F. 700 1 $aBRANDÃO, F. Z. 700 1 $aBARTLEWSKI, P. M. 700 1 $aFONSECA, J. F. da 773 $tSmall Ruminant Research$gv. 227, e107061, Oct. 2023.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
06/09/1994 |
Data da última atualização: |
06/09/1994 |
Autoria: |
PICININI, E. C.; PRESTES, A. M.; SARTORI, J. F.; AMBROSI, I.; LAMBERT, F. Z. I.; ARAUJO, E. C.; MENA BARRETO, A. C. |
Título: |
Eficiência da aviação agrícola no controle químico das doenças do trigo nos anos de 1981 e 1982. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
In: EMBRAPA. Centro Nacional de Pesquisa de Trigo. Resultados de pesquisa do Centro Nacional de Pesquisa de Trigo apresentados na XIII Reunião Nacional de Pesquisa de Trigo. Passo Fundo: EMBRAPA-CNPT, 1984. |
Páginas: |
p. 65-78 |
Série: |
(EMBRAPA-CNPT. Documentos, 7). |
Idioma: |
Português |
Notas: |
Trabalho apresentado na XIII Reunião Nacional de Pesquisa de Trigo, Cruz Alta, 1984. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00883naa a2200217 a 4500 001 1823672 005 1994-09-06 008 1984 bl uuuu u00u1 u #d 100 1 $aPICININI, E. C. 245 $aEficiência da aviação agrícola no controle químico das doenças do trigo nos anos de 1981 e 1982. 260 $c1984 300 $ap. 65-78 490 $a(EMBRAPA-CNPT. Documentos, 7). 500 $aTrabalho apresentado na XIII Reunião Nacional de Pesquisa de Trigo, Cruz Alta, 1984. 700 1 $aPRESTES, A. M. 700 1 $aSARTORI, J. F. 700 1 $aAMBROSI, I. 700 1 $aLAMBERT, F. Z. I. 700 1 $aARAUJO, E. C. 700 1 $aMENA BARRETO, A. C. 773 $tIn: EMBRAPA. Centro Nacional de Pesquisa de Trigo. Resultados de pesquisa do Centro Nacional de Pesquisa de Trigo apresentados na XIII Reunião Nacional de Pesquisa de Trigo. Passo Fundo: EMBRAPA-CNPT, 1984.
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