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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
28/02/1996 |
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Data da última atualização: |
26/06/2023 |
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Autoria: |
POINDRON, P.; LEVY, F.; KREHBIEL, D. |
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Título: |
Genital, olfactory, and endocrine interactions in the development of maternal behaviour in the parturient ewe. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Psychoneuroendocrinology, v. 13, n. 1/2, p. 99-125, 1988. |
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DOI: |
10.1016/0306-4530(88)90009-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This article reviews current understanding of the physiological control of maternal behaviour in parturient ewes. Estradiol is an important endocrine factor which stimulates maternal responsiveness, both in nonpregnant and in parturient ewes. However, its action depends on previous maternal experience, and other factors are also necessary for the rapid manifestation of maternal behaviour. Olfactory cues play a major role in the normal development of the mother-young relationship. Genital stimulation (GS) is a key factor influencing various aspects of maternal responsiveness in sheep. GS acts in synergy with peripheral hormones to induce the rapid onset of licking and immediate acceptance of a neonate at the udder in nonpregnant ewes. It also influences the attraction of amniotic fluid at parturition and reduces aggressive behaviour towards lambs. Deprivation of GS by peridural anesthesia disturbs maternal behaviour in parturient ewes, especially in primiparae. And, additional GS in postparturient ewes allows the formation of a new bond with an alien neonate in mothers which had already established a selective relationship with their own lambs. Some of these positive effects of GS are mediated through modifications of olfactory function (attraction of amniotic fluid, establishment of a selective bond), whereas this may not be the case for other effects (stimulation of licking, reduction of aggressive behaviour). Studies of the neural mechanisms involved will be necessary to specify the modes of action of GS. The first results suggest GS may act in at least two ways at the level of the brain. Stimulation of maternal behaviour could depend on the liberation of oxytocin within the brain, since intracerebroventricular injections of this hormone facilitate maternal responses. Also, GS can influence olfactory function through the activation of afferent noradrenergic pathways in the olfactory bulbs. Further studies need to be developed to specify the relationships between the various structures involved as well as the level at which estradiol exerts its facilitatory action. MenosAbstract: This article reviews current understanding of the physiological control of maternal behaviour in parturient ewes. Estradiol is an important endocrine factor which stimulates maternal responsiveness, both in nonpregnant and in parturient ewes. However, its action depends on previous maternal experience, and other factors are also necessary for the rapid manifestation of maternal behaviour. Olfactory cues play a major role in the normal development of the mother-young relationship. Genital stimulation (GS) is a key factor influencing various aspects of maternal responsiveness in sheep. GS acts in synergy with peripheral hormones to induce the rapid onset of licking and immediate acceptance of a neonate at the udder in nonpregnant ewes. It also influences the attraction of amniotic fluid at parturition and reduces aggressive behaviour towards lambs. Deprivation of GS by peridural anesthesia disturbs maternal behaviour in parturient ewes, especially in primiparae. And, additional GS in postparturient ewes allows the formation of a new bond with an alien neonate in mothers which had already established a selective relationship with their own lambs. Some of these positive effects of GS are mediated through modifications of olfactory function (attraction of amniotic fluid, establishment of a selective bond), whereas this may not be the case for other effects (stimulation of licking, reduction of aggressive behaviour). Studies of the neural mechanisms involved will be nece... Mostrar Tudo |
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Palavras-Chave: |
Comportamento maternal; Etologia; Physical Stimulation. |
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Thesagro: |
Estradiol; Ovino. |
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Thesaurus Nal: |
Maternal behavior; Obstetric labor; Physiology; Pregnancy; Reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02948naa a2200289 a 4500
001 1522536
005 2023-06-26
008 1988 bl uuuu u00u1 u #d
024 7 $a10.1016/0306-4530(88)90009-1$2DOI
100 1 $aPOINDRON, P.
245 $aGenital, olfactory, and endocrine interactions in the development of maternal behaviour in the parturient ewe.$h[electronic resource]
260 $c1988
520 $aAbstract: This article reviews current understanding of the physiological control of maternal behaviour in parturient ewes. Estradiol is an important endocrine factor which stimulates maternal responsiveness, both in nonpregnant and in parturient ewes. However, its action depends on previous maternal experience, and other factors are also necessary for the rapid manifestation of maternal behaviour. Olfactory cues play a major role in the normal development of the mother-young relationship. Genital stimulation (GS) is a key factor influencing various aspects of maternal responsiveness in sheep. GS acts in synergy with peripheral hormones to induce the rapid onset of licking and immediate acceptance of a neonate at the udder in nonpregnant ewes. It also influences the attraction of amniotic fluid at parturition and reduces aggressive behaviour towards lambs. Deprivation of GS by peridural anesthesia disturbs maternal behaviour in parturient ewes, especially in primiparae. And, additional GS in postparturient ewes allows the formation of a new bond with an alien neonate in mothers which had already established a selective relationship with their own lambs. Some of these positive effects of GS are mediated through modifications of olfactory function (attraction of amniotic fluid, establishment of a selective bond), whereas this may not be the case for other effects (stimulation of licking, reduction of aggressive behaviour). Studies of the neural mechanisms involved will be necessary to specify the modes of action of GS. The first results suggest GS may act in at least two ways at the level of the brain. Stimulation of maternal behaviour could depend on the liberation of oxytocin within the brain, since intracerebroventricular injections of this hormone facilitate maternal responses. Also, GS can influence olfactory function through the activation of afferent noradrenergic pathways in the olfactory bulbs. Further studies need to be developed to specify the relationships between the various structures involved as well as the level at which estradiol exerts its facilitatory action.
650 $aMaternal behavior
650 $aObstetric labor
650 $aPhysiology
650 $aPregnancy
650 $aReproduction
650 $aSheep
650 $aEstradiol
650 $aOvino
653 $aComportamento maternal
653 $aEtologia
653 $aPhysical Stimulation
700 1 $aLEVY, F.
700 1 $aKREHBIEL, D.
773 $tPsychoneuroendocrinology$gv. 13, n. 1/2, p. 99-125, 1988.
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| 1. |  | SOUSA, N. A. de; MARANI, M. M.; LOPES, A. L. F.; SILVA, E. M.; BARBOSA, E. A.; VASCONCELOS, A. G.; KUZNIEWSKI, F. T. B.; LUSTOSA, S. S.; GOMES, K. P.; COLUGNATI, D. B.; ROCHA, J. A.; SANTOS, L. H.; BEMQUERER, M. P.; QUELEMES, P.; VÉRAS, L.; MOREIRA, D. C.; GADELHA, K. K. L.; MAGALHÃES, P. J. C.; PLÁCIDO, A.; EATON, E.; NICOLAU, L.; MEDEIROS, J. V. R.; LEITE, J. R. S. A. BR-bombesin: a novel bombesin-related peptide from the skin secretion of the Chaco tree frog (Boana raniceps) with physiological gastric effects. Amino Acids, v. 54, p. 733-747, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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