| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Rondônia. |
|
Data corrente: |
18/09/2018 |
|
Data da última atualização: |
18/09/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PFEIFER, L. F. M.; MAPLETOFT, R. J.; DARDAWAL, D.; SINGH, J. |
|
Afiliação: |
LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO; Reuben John Mapletoft, University of Saskatchewan; Dinesh Dardawal, University of Saskatchewan; Jaswant Singh, University of Saskatchewan. |
|
Título: |
Effect of injectable progesterone on follicular development in lactating beef cows treated with estradiol plus a low-concentration progesterone device. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Brazilian Journal of Veterinary Research and Animal Science, v. 25, n. 2, p. 1-8, 2018. |
|
DOI: |
10.11606/issn.1678-4456.bjvras.2018.136924 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The effect of injectable progesterone was evaluated along with estradiol benzoate (EB) on the fate of the dominant follicle (DF) present in the ovary at the beginning of low progesterone-based TAI protocol. All cattle were given 500 µg cloprostenol im (PGF; Schering-Plough Animal Health for Estrumate, Pointe-Claire, QC, Canada) twice, 11 d apart, and allocated into two groups: Estradiol group (E group, n = 11) and Estradiol-Progesterone group (EP group, n = 11). Ten days after the second PGF (Day 0), all cattle were given an intravaginal progesterone device with half progesterone concentration (Cue-Mate with a single pod containing 0.78 g progesterone). Concurrently, all cattle were given 1.5 mg im of estradiol benzoate in 3 mL of canola oil and PGF im on Day 0 of the protocol in a crossover design, in which each cow received both treatments. Cows in the EP group also received 100 mg im progesterone (Sigma) in 2 mL of canola oil. On Day 8, progesterone devices were removed and all cattle were given PGF im. All statistical analyses were performed with SAS 9.0. The DF present on Day 0 ovulated in 76% (16/21) of cows from E group and 28.6% (6/21) of cows from EP group (P = 0.002). After progesterone device removal, the size of ovulatory follicle did not differ between groups (E group, 15.5 ± 0.43 mm vs EP group, 15.8 ± 0.98 mm; P = 0.82). These follicles ovulated in 81.3 ± 3.1 h in E group and 71.0 ± 6.1 h in EP group (P = 0.13). In conclusion, injectable progesterone reduced the proportion of cows that ovulate the dominant follicle present in the ovary at the beginning of estradiol-progesterone-based protocols. However, no difference was detected on time of ovulation after progesterone device removal between groups. MenosThe effect of injectable progesterone was evaluated along with estradiol benzoate (EB) on the fate of the dominant follicle (DF) present in the ovary at the beginning of low progesterone-based TAI protocol. All cattle were given 500 µg cloprostenol im (PGF; Schering-Plough Animal Health for Estrumate, Pointe-Claire, QC, Canada) twice, 11 d apart, and allocated into two groups: Estradiol group (E group, n = 11) and Estradiol-Progesterone group (EP group, n = 11). Ten days after the second PGF (Day 0), all cattle were given an intravaginal progesterone device with half progesterone concentration (Cue-Mate with a single pod containing 0.78 g progesterone). Concurrently, all cattle were given 1.5 mg im of estradiol benzoate in 3 mL of canola oil and PGF im on Day 0 of the protocol in a crossover design, in which each cow received both treatments. Cows in the EP group also received 100 mg im progesterone (Sigma) in 2 mL of canola oil. On Day 8, progesterone devices were removed and all cattle were given PGF im. All statistical analyses were performed with SAS 9.0. The DF present on Day 0 ovulated in 76% (16/21) of cows from E group and 28.6% (6/21) of cows from EP group (P = 0.002). After progesterone device removal, the size of ovulatory follicle did not differ between groups (E group, 15.5 ± 0.43 mm vs EP group, 15.8 ± 0.98 mm; P = 0.82). These follicles ovulated in 81.3 ± 3.1 h in E group and 71.0 ± 6.1 h in EP group (P = 0.13). In conclusion, injectable progesterone reduced t... Mostrar Tudo |
|
Palavras-Chave: |
Dominant follicle; Folículo dominante. |
|
Thesagro: |
Gado de Corte; Ovulação; Rebanho. |
|
Thesaurus Nal: |
Beef cattle; Livestock. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183194/1/BJVRAS-injectable-P4.pdf
|
|
Marc: |
LEADER 02594naa a2200253 a 4500
001 2095966
005 2018-09-18
008 2018 bl uuuu u00u1 u #d
024 7 $a10.11606/issn.1678-4456.bjvras.2018.136924$2DOI
100 1 $aPFEIFER, L. F. M.
245 $aEffect of injectable progesterone on follicular development in lactating beef cows treated with estradiol plus a low-concentration progesterone device.$h[electronic resource]
260 $c2018
520 $aThe effect of injectable progesterone was evaluated along with estradiol benzoate (EB) on the fate of the dominant follicle (DF) present in the ovary at the beginning of low progesterone-based TAI protocol. All cattle were given 500 µg cloprostenol im (PGF; Schering-Plough Animal Health for Estrumate, Pointe-Claire, QC, Canada) twice, 11 d apart, and allocated into two groups: Estradiol group (E group, n = 11) and Estradiol-Progesterone group (EP group, n = 11). Ten days after the second PGF (Day 0), all cattle were given an intravaginal progesterone device with half progesterone concentration (Cue-Mate with a single pod containing 0.78 g progesterone). Concurrently, all cattle were given 1.5 mg im of estradiol benzoate in 3 mL of canola oil and PGF im on Day 0 of the protocol in a crossover design, in which each cow received both treatments. Cows in the EP group also received 100 mg im progesterone (Sigma) in 2 mL of canola oil. On Day 8, progesterone devices were removed and all cattle were given PGF im. All statistical analyses were performed with SAS 9.0. The DF present on Day 0 ovulated in 76% (16/21) of cows from E group and 28.6% (6/21) of cows from EP group (P = 0.002). After progesterone device removal, the size of ovulatory follicle did not differ between groups (E group, 15.5 ± 0.43 mm vs EP group, 15.8 ± 0.98 mm; P = 0.82). These follicles ovulated in 81.3 ± 3.1 h in E group and 71.0 ± 6.1 h in EP group (P = 0.13). In conclusion, injectable progesterone reduced the proportion of cows that ovulate the dominant follicle present in the ovary at the beginning of estradiol-progesterone-based protocols. However, no difference was detected on time of ovulation after progesterone device removal between groups.
650 $aBeef cattle
650 $aLivestock
650 $aGado de Corte
650 $aOvulação
650 $aRebanho
653 $aDominant follicle
653 $aFolículo dominante
700 1 $aMAPLETOFT, R. J.
700 1 $aDARDAWAL, D.
700 1 $aSINGH, J.
773 $tBrazilian Journal of Veterinary Research and Animal Science$gv. 25, n. 2, p. 1-8, 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Rondônia (CPAF-RO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 134 | |
| 32. |  | NUNES, V. R. R.; SIQUEIRA, L. G. B.; SILVA, G. M. da; PFEIFER, L. F. M. Relação entre a vascularização de folículos pré-ovulatórios e o momento da ovulação de vacas Girolando. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho, RO. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 11.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
|    |
| 38. | | PFEIFER, L. F. M.; ADAMS, G. P.; PIERSON, R. A.; SINGH, J. Ultrasound biomicroscopy: a non-invasive approach forin vivo evaluation of oocytes and small antral follicles in mammals. Reproduction, Fertility and Development, Australia, v. 26, n. 1, p. 48-54, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Rondônia. |
|  |
| 40. | | CASTRO, N. A. de; SIQUEIRA, L. G. B.; VIANA, J. H. M.; PFEIFER, L. F. M. Uso da PGF como indutor de ovulação em programas de IATF em vacas de leite pós-parto. In: CONGRESSO INTERNACIONAL DO LEITE, 12.; WORKSHOP DE POLÍTICAS PÚBLICAS, 12.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 13., 2013, Porto Velho. Anais... Brasília, DF: Embrapa, 2013. 3 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
| |
| Registros recuperados : 134 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
