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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
20/07/2017 |
Data da última atualização: |
20/07/2017 |
Autoria: |
ALLISON, A. J.; ROBINSON, T. J. |
Título: |
The effect of dose level of intravaginal progestagen on sperm transport, fertilization and lambing in the cyclic Merino ewe. |
Ano de publicação: |
1970 |
Fonte/Imprenta: |
Journal of Reproduction and Development, v. 23, n. 3, p. 515-531, Aug. 1970. |
Idioma: |
Inglês |
Conteúdo: |
The numbers of spermatozoa recovered from the Fallopian tubes 24 hr after insemination, fertilization rate and lambing were measured in one group of 120 normal cyclic ewes and in three groups of 120 animals which had been synchronized with intravaginal sponges impregnated with 10, 30 or 90 mg Cronolone (Searle). Half of each group received 500 i.u. pmsg. Results were as follows: Cronolone (mg) 0 IO 30 90 Numbers of tubai spermatozoa 2466 632 1900 2329 0 versus 10, 30, 90; P< 0-1 Lambing percentage 64-0 55-2 57-6 58-3 NS PMSG had no apparent effect on any one of the three parameters. Increasing dose of progestagen significantly increased the incidence of oestrus and was associated with an increasing ovarian response to pmsg. There was no evidence that embryonic mortality was greater in progestagen-treated than in untreated ewes. Considering all parameters of fertility, ewes treated with intravaginal sponges containing 10 mg Cronolone yielded the fewest spermatozoa, the lowest number and percentage of fertilized eggs and the lowest percentage of lambing ewes. |
Palavras-Chave: |
Dosage effects; Drug effects; Fertility; Fertilization; Flurogestone Acetate; Oestrous cycle; Pregnanes; Progestogens. |
Thesaurus Nal: |
Artificial insemination; Fluorine; Laparotomy; Pregnancy; Reproduction; Sheep; Spermatozoa. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01968naa a2200313 a 4500 001 2072948 005 2017-07-20 008 1970 bl uuuu u00u1 u #d 100 1 $aALLISON, A. J. 245 $aThe effect of dose level of intravaginal progestagen on sperm transport, fertilization and lambing in the cyclic Merino ewe. 260 $c1970 520 $aThe numbers of spermatozoa recovered from the Fallopian tubes 24 hr after insemination, fertilization rate and lambing were measured in one group of 120 normal cyclic ewes and in three groups of 120 animals which had been synchronized with intravaginal sponges impregnated with 10, 30 or 90 mg Cronolone (Searle). Half of each group received 500 i.u. pmsg. Results were as follows: Cronolone (mg) 0 IO 30 90 Numbers of tubai spermatozoa 2466 632 1900 2329 0 versus 10, 30, 90; P< 0-1 Lambing percentage 64-0 55-2 57-6 58-3 NS PMSG had no apparent effect on any one of the three parameters. Increasing dose of progestagen significantly increased the incidence of oestrus and was associated with an increasing ovarian response to pmsg. There was no evidence that embryonic mortality was greater in progestagen-treated than in untreated ewes. Considering all parameters of fertility, ewes treated with intravaginal sponges containing 10 mg Cronolone yielded the fewest spermatozoa, the lowest number and percentage of fertilized eggs and the lowest percentage of lambing ewes. 650 $aArtificial insemination 650 $aFluorine 650 $aLaparotomy 650 $aPregnancy 650 $aReproduction 650 $aSheep 650 $aSpermatozoa 653 $aDosage effects 653 $aDrug effects 653 $aFertility 653 $aFertilization 653 $aFlurogestone Acetate 653 $aOestrous cycle 653 $aPregnanes 653 $aProgestogens 700 1 $aROBINSON, T. J. 773 $tJournal of Reproduction and Development$gv. 23, n. 3, p. 515-531, Aug. 1970.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registros recuperados : 11 | |
3. | | ROBINSON, T. K.; PINTO, C. E.; BRAMBILLA, D.; PEREZ, N. B.; NABINGER, C. Morphogenic analysis of three geographical populations of Eragrostis plana ness in South of Brazil. In: INTERNATIONAL RANGELAND CONGRESS, 9., 2011, Rosario. Diverse rangelands for a sustainable society. Buenos Aires: Fundación Argeninta, 2011. p. 205. 1 CD-ROM. Autores Susana Feldman; Oliva, Gabriel; Mónica Sacido.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sul. |
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10. | | MACEDO, T. A. de; MICHELON, M. F.; CARMINATTI, J. F.; GRILO, L.; RUFATO, A. de R.; RUFATO, L.; ROBINSON, T. L. Chill requirement and budburst uniformity on cultivar maxigala grafted on different rootstocks. In: ORCHAD SYSTEMS SYMPOSIUM, 11., 2016. Integrating Canopy, Rootstookhand Environment Physiology in Orchard Systems: Anais... .Bologna, 28/08 a 2/09 de 2016. p. 108.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Uva e Vinho. |
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11. | | MAGRO, M.; RUFATO, L.; SANDER, G. F.; SANDOS, A. M. dos; RUFATO, A. de R.; KRETZSCHMAR, A. A.; ROBINSON, T. L. Maturation behavior of Maxi Gala grafetd on two rootstocks by no Destructive Method. In: ORCHAD SYSTEMS SYMPOSIUM, 11., 2016. Integrating Canopy, Rootstookhand Environment Physiology in Orchard Systems: Anais... .Bologna, 28/08 a 2/09 de 2016. p. 107.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Uva e Vinho. |
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Registros recuperados : 11 | |
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