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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
10/06/2025 |
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Autoria: |
BRADEN, A. W. H.; MOULE, G. R. |
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Título: |
Effects of stress on ovarian morphology and oestrous cycles in ewes. |
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Ano de publicação: |
1964 |
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Fonte/Imprenta: |
Australian Journal Agricultural Research, v. 15, n. 6, p. 937-949, 1964. |
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DOI: |
https://doi.org/10.1071/AR9640937 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Observations involving over 600 sheep and extending over 4 years were made on the effect of acute stress on the estrous cycle and ovarian morphology of ewes. In anestrous ewes ovulation unaccompanied by estrous was often induced by severe stress. Injections of ACTH (cortrophin-ZN, Organon) did not induce ovulation in anestrous ewes. During the breeding season severe stress appeared sometimes to lengthen the estrous cycle by a few days. The presence of a large cavity in the corpus luteum (C.L.) often seemed to have been induced by stress, but the amount of luteal tissue and its microscopic appearance did not usually appear much different from solid C.L. Oxytocin injections did not affect estrous cycle or ovarian morphology, but in some circumstances injections of ACTH or stilboestrol appeared to cause an increase in cycle length. |
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Palavras-Chave: |
Anoestrus; Morfologia; Oestrous cycle. |
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Thesagro: |
Ciclo Estral; Ovário; Ovino; Reprodução; Stress. |
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Thesaurus Nal: |
Corpus luteum; Injection; Oxytocin; Reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01667naa a2200301 a 4500
001 1521401
005 2025-06-10
008 1964 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1071/AR9640937$2DOI
100 1 $aBRADEN, A. W. H.
245 $aEffects of stress on ovarian morphology and oestrous cycles in ewes.$h[electronic resource]
260 $c1964
520 $aAbstract: Observations involving over 600 sheep and extending over 4 years were made on the effect of acute stress on the estrous cycle and ovarian morphology of ewes. In anestrous ewes ovulation unaccompanied by estrous was often induced by severe stress. Injections of ACTH (cortrophin-ZN, Organon) did not induce ovulation in anestrous ewes. During the breeding season severe stress appeared sometimes to lengthen the estrous cycle by a few days. The presence of a large cavity in the corpus luteum (C.L.) often seemed to have been induced by stress, but the amount of luteal tissue and its microscopic appearance did not usually appear much different from solid C.L. Oxytocin injections did not affect estrous cycle or ovarian morphology, but in some circumstances injections of ACTH or stilboestrol appeared to cause an increase in cycle length.
650 $aCorpus luteum
650 $aInjection
650 $aOxytocin
650 $aReproduction
650 $aSheep
650 $aCiclo Estral
650 $aOvário
650 $aOvino
650 $aReprodução
650 $aStress
653 $aAnoestrus
653 $aMorfologia
653 $aOestrous cycle
700 1 $aMOULE, G. R.
773 $tAustralian Journal Agricultural Research$gv. 15, n. 6, p. 937-949, 1964.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
