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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
15/02/1996 |
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Data da última atualização: |
22/06/2023 |
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Autoria: |
ROBERTS, A. J.; REEVES, J. J. |
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Título: |
Reproductive and endocrine changes in ewes actively immunized against luteinizing hormone. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Journal of Reproductive Immunology, v. 16, n. 2, p. 187-197, Nov. 1989. |
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DOI: |
10.1016/0165-0378(89)90027-2. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objective of this study was to examine reproductive and endocrine changes in ewes actively immunized against a conjugation of luteinizing hormone (LH) and ovalbumin (LH immunized n = 10) or ovalbumin alone (control; n = 10). Ewes were immunized at weeks 0, 3 and 5 of the 93-week study and exposed to a fertile ram during weeks 7-25 (first breeding season) and weeks 60-67 (second breeding season). Immunization against LH abolished estrus and prevented pregnancy in all but one LH immunized ewe during the two breeding seasons. Uterine weights of LH immunized ewes were lighter than those observed in control ewes while ovarian weights did not differ between the treatment groups. No differences were observed between basal circulating concentrations of LH measured by an in vitro bioassay for the two treatment groups. However, serum concentrations of immunological follicle stimulating hormone, and the number of medium sized ovarian follicles (4-6 mm) were increased in LH immunized ewes. It was concluded from this study that immunization against LH prevents ovulation presumably by blocking the preovulatory surge of LH and not altering basal concentration of LH. |
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Palavras-Chave: |
Organ Size; Ovary; Reproduction control; Taxa de paricao. |
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Thesagro: |
Endocrinologia; Ovino; Reprodução. |
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Thesaurus Nal: |
Animal anatomy; Estrus; Females; Follicle-stimulating hormone; Histology; Immunology; Luteinizing hormone; Ovarian follicles; Parturition; Pituitary gland; Pregnancy; Reproduction; Sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02256naa a2200385 a 4500
001 1522129
005 2023-06-22
008 1989 bl uuuu u00u1 u #d
024 7 $a10.1016/0165-0378(89)90027-2.$2DOI
100 1 $aROBERTS, A. J.
245 $aReproductive and endocrine changes in ewes actively immunized against luteinizing hormone.$h[electronic resource]
260 $c1989
520 $aAbstract: The objective of this study was to examine reproductive and endocrine changes in ewes actively immunized against a conjugation of luteinizing hormone (LH) and ovalbumin (LH immunized n = 10) or ovalbumin alone (control; n = 10). Ewes were immunized at weeks 0, 3 and 5 of the 93-week study and exposed to a fertile ram during weeks 7-25 (first breeding season) and weeks 60-67 (second breeding season). Immunization against LH abolished estrus and prevented pregnancy in all but one LH immunized ewe during the two breeding seasons. Uterine weights of LH immunized ewes were lighter than those observed in control ewes while ovarian weights did not differ between the treatment groups. No differences were observed between basal circulating concentrations of LH measured by an in vitro bioassay for the two treatment groups. However, serum concentrations of immunological follicle stimulating hormone, and the number of medium sized ovarian follicles (4-6 mm) were increased in LH immunized ewes. It was concluded from this study that immunization against LH prevents ovulation presumably by blocking the preovulatory surge of LH and not altering basal concentration of LH.
650 $aAnimal anatomy
650 $aEstrus
650 $aFemales
650 $aFollicle-stimulating hormone
650 $aHistology
650 $aImmunology
650 $aLuteinizing hormone
650 $aOvarian follicles
650 $aParturition
650 $aPituitary gland
650 $aPregnancy
650 $aReproduction
650 $aSheep
650 $aEndocrinologia
650 $aOvino
650 $aReprodução
653 $aOrgan Size
653 $aOvary
653 $aReproduction control
653 $aTaxa de paricao
700 1 $aREEVES, J. J.
773 $tJournal of Reproductive Immunology$gv. 16, n. 2, p. 187-197, Nov. 1989.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 2 | |
| 1. |  | ROBERTS, A.; BOECKMAN, C. J.; MÜHL, M.; ROMEIS, J.; TEEM, J. L.; VALICENTE, F. H.; BROWN, J. K.; EDWARDS, M. G.; LEVINE, S. L.; MELNICK, R. L.; ROFRIGUES, T. B.; VÉLEZ, A. M.; ZHOU, X.; HELLMICH, R. L. Sublethal endpoints in non-target organism testing for insect-active GE crops. Frontiers in Bioengineering and Biotechnology, v. 8, article 556, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 2. | | PATERSON, A. H.; WENDEL, J. F.; GUNDLACH, H.; GUO, H.; JENKINS, J.; JIN, D.; LLEWELLYN, D.; SHOWMAKER, K. C.; SHU, S.; UDALL, J.; YOO, M. J; BYERS, R.; CHEN, W.; DORON-FAIGENBOIM, A.; DUKE, M. V.; GONG, L.; GRIMWOOD, J.; GROVER, C.; GRUPP, K.; HU, G.; LEE, T.-H.; LI, J.; LIN, L.; LIU, T.; MARLER, B. S.; PAGE, J. T.; ROBERTS, A. W.; ROMANEL, E.; SANDERS, W. S.; SZADKOWSKI, E.; TAN, X.; TANG, H.; XU, C.; WANG, J.; WANG, Z.; ZHANG, D.; ZHANG, L.; ASHRAFI, H.; BEDON, F.; BOWERS, J. E.; BRUBAKER, C. L.; CHEE, P. W.; DAS, S.; GINGLE, A. R.; HAIGLER, C. H.; HARKER, D.; HOFFMANN, L. V.; HOVAV, R.; JONES, D. C.; LEMKI, C.; MANSOOR, S.; RAHMAN, M. U.; RAINVILLE, L. N.; RAMBANI, A.; REDDY, U. K.; RONG, J.-K.; SARANGA, Y.; SCHEFFLER, B. E.; STELLY, D. M.; TRIPLETT, B. A.; WAGHMARE, V. N.; WALFORD, S. A.; WRIGHT, R. J.; ZAKI, E. A.; ZHANG, T.; DENNIS, E. S.; MAYER, K. F. X.; PETERSON, D. G.; ROKHSAR, D. S.; WANG, X.; SCHMUTZ, J. Repeated polyploidization of Gossypium genomes and the evolution of spinnable cotton fibres. NATURE, v. 492, p. 423-427, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Algodão. |
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| Registros recuperados : 2 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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