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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
19/11/2003 |
Data da última atualização: |
28/08/2023 |
Autoria: |
HUSEIN, M. Q.; BAILEY, M. T.; ABABNEH, M. M.; ROMANO, J. E.; CRABO, B. G.; WHEATON, J. E. |
Título: |
Effect of eCG the pregnancy rate of ewes transcervically inseminated with frozen-thawed semen outside the breeding season. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
Theriogenology, v. 49, n. 5, p. 997-1005, Apr. 1998. |
DOI: |
10.1016/s0093-691x(98)00048-x. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: An experiment was conducted to determine whether factors affecting pregnancy rate out-of-season are associated more with transcervical artificial insemination (T-AI) procedures or with the reproductive state of the ewe. Twenty Finncross ewes were treated with progesterone sponges, and at sponge removal (0 h) 10 ewes were treated with eCG. Blood samples were collected for LH and progesterone analyses, and follicular development was monitored using ultrasonography. Ewes were inseminated from 48 to 52 h with 200 million motile frozen-thawed spermatozoa. The incidence of estrus, LH surges and ovulation was greater (P < 0.01) and intervals to these responses were shorter (P < 0.01) in the eCG-treated ewes. The number of follicles > 5 mm was higher (P < 0.05) in eCG-treated than control ewes. Progesterone concentrations increased and remained elevated through Day 19 in 7 eCG-treated and in 1 control ewe, and these ewes were pregnant based upon ultrasonographic examination. The results demonstrate that the T-AI technique using frozen-thawed semen produces a relatively high (70%) pregnancy rate out-of-season. The pregnancy rate was found to reflect primarily the reproductive condition of the ewe. |
Palavras-Chave: |
Drug effects; eCG; Ovulation Induction; Semen Preservation. |
Thesaurus Nal: |
Chorionic gonadotropins; Luteinizing hormone; Ovarian follicles; Pharmacology; Pregnancy; Progesterone; Reproduction; Seasons; Sheep; Sperm motility; Spermatozoa; Ultrasonography. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02329naa a2200385 a 4500 001 1530044 005 2023-08-28 008 1998 bl uuuu u00u1 u #d 024 7 $a10.1016/s0093-691x(98)00048-x.$2DOI 100 1 $aHUSEIN, M. Q. 245 $aEffect of eCG the pregnancy rate of ewes transcervically inseminated with frozen-thawed semen outside the breeding season.$h[electronic resource] 260 $c1998 520 $aAbstract: An experiment was conducted to determine whether factors affecting pregnancy rate out-of-season are associated more with transcervical artificial insemination (T-AI) procedures or with the reproductive state of the ewe. Twenty Finncross ewes were treated with progesterone sponges, and at sponge removal (0 h) 10 ewes were treated with eCG. Blood samples were collected for LH and progesterone analyses, and follicular development was monitored using ultrasonography. Ewes were inseminated from 48 to 52 h with 200 million motile frozen-thawed spermatozoa. The incidence of estrus, LH surges and ovulation was greater (P < 0.01) and intervals to these responses were shorter (P < 0.01) in the eCG-treated ewes. The number of follicles > 5 mm was higher (P < 0.05) in eCG-treated than control ewes. Progesterone concentrations increased and remained elevated through Day 19 in 7 eCG-treated and in 1 control ewe, and these ewes were pregnant based upon ultrasonographic examination. The results demonstrate that the T-AI technique using frozen-thawed semen produces a relatively high (70%) pregnancy rate out-of-season. The pregnancy rate was found to reflect primarily the reproductive condition of the ewe. 650 $aChorionic gonadotropins 650 $aLuteinizing hormone 650 $aOvarian follicles 650 $aPharmacology 650 $aPregnancy 650 $aProgesterone 650 $aReproduction 650 $aSeasons 650 $aSheep 650 $aSperm motility 650 $aSpermatozoa 650 $aUltrasonography 653 $aDrug effects 653 $aeCG 653 $aOvulation Induction 653 $aSemen Preservation 700 1 $aBAILEY, M. T. 700 1 $aABABNEH, M. M. 700 1 $aROMANO, J. E. 700 1 $aCRABO, B. G. 700 1 $aWHEATON, J. E. 773 $tTheriogenology$gv. 49, n. 5, p. 997-1005, Apr. 1998.
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10. | | CORREA, L. P.; CANCELA, L. S.; SODRÉ, L. G. G. G.; MOON, S. E. N.; MARQUES, J. R. F.; SOUZA, E. C. de; BARBOSA, I. C. da C.; SILVA, A. dos S. Análise sensorial de leite de búfala produzido em Belém do Pará. In: CONGRESSO BRASILEIRO DE QUÍMICA, 58., 2018, São Luis. Trabalhos. Rio de Janeiro: ABQ, 2018.Tipo: Artigo em Anais de Congresso |
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11. | | CANCELA, L. S.; CORREA, L. P.; MONN, S. E. N.; SODRÉ, L. G. G. G.; COSTA, A. N. G. da; MARQUES, J. R. F.; BEGÃO, C. A. B.; SOUZA, E. C. de; SILVA, A. dos S. Análises físico-químicas de chantilly de leite de búfala. In: CONGRESSO BRASILEIRO DE QUÍMICA, 59., 2019, João Pessoa. Trabalhos aceitos. Rio de Janeiro: ABQ, 2019.Tipo: Artigo em Anais de Congresso |
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12. | | CORREA, L. P.; MOON, S. E. N.; CANCELA, L. S.; SODRÉ, L. G. G. G.; COSTA, A. N. G. da; MARQUES, J. R. F.; SOUZA, E. C. de; SILVA, A. dos S. Análise físico-química de creme de leite de búfala. In: CONGRESSO BRASILEIRO DE QUÍMICA, 59., 2019, João Pessoa. Trabalhos aceitos. Rio de Janeiro: ABQ, 2019.Tipo: Artigo em Anais de Congresso |
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