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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
20/07/2017 |
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Data da última atualização: |
20/07/2017 |
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Autoria: |
SMEATON, T. C.; ROBERTSON, H. A. |
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Título: |
Studies on the growth and atresia of graafian follicles in the ovary of the sheep. |
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Ano de publicação: |
1971 |
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Fonte/Imprenta: |
Journal of Reproduction and Development, v. 25, n. 2, p. 243-252, May. 1971. |
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Idioma: |
Inglês |
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Conteúdo: |
The growth and atresia of individual Graafian follicles in the ovaries of fourteen cycling Suffolk ewes were followed in vivo by marking the large follicle(s) present in the ovaries with Indian ink at three different times during the oestrous cycle. The ovaries containing marked follicles were removed on the 3rd to 9th day of the next cycle and sectioned to determine whether the follicles had ovulated. The results showed that follicles marked before the last day of the cycle regressed and did not ovulate. Only large follicles marked at, or just before, the onset of oestrus, ovulated and developed into corpora lutea. It is suggested that there are at least three phases of follicular growth and atresia during any one oestrous cycle which appear to be independent of circulating progesterone levels. Examination of sections of ovaries from a number of anoestrous and pregnant ewes gave no indication of a similar cyclic pattern of follicular growth and atresia. |
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Palavras-Chave: |
Oestrous cycle. |
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Thesaurus Nal: |
Carbon; Corpus Luteum; Ovarian Follicles; Ovulation; Physiology; Pregnancy; Progesterone; Reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01661naa a2200253 a 4500
001 2072953
005 2017-07-20
008 1971 bl uuuu u00u1 u #d
100 1 $aSMEATON, T. C.
245 $aStudies on the growth and atresia of graafian follicles in the ovary of the sheep.
260 $c1971
520 $aThe growth and atresia of individual Graafian follicles in the ovaries of fourteen cycling Suffolk ewes were followed in vivo by marking the large follicle(s) present in the ovaries with Indian ink at three different times during the oestrous cycle. The ovaries containing marked follicles were removed on the 3rd to 9th day of the next cycle and sectioned to determine whether the follicles had ovulated. The results showed that follicles marked before the last day of the cycle regressed and did not ovulate. Only large follicles marked at, or just before, the onset of oestrus, ovulated and developed into corpora lutea. It is suggested that there are at least three phases of follicular growth and atresia during any one oestrous cycle which appear to be independent of circulating progesterone levels. Examination of sections of ovaries from a number of anoestrous and pregnant ewes gave no indication of a similar cyclic pattern of follicular growth and atresia.
650 $aCarbon
650 $aCorpus Luteum
650 $aOvarian Follicles
650 $aOvulation
650 $aPhysiology
650 $aPregnancy
650 $aProgesterone
650 $aReproduction
650 $aSheep
653 $aOestrous cycle
700 1 $aROBERTSON, H. A.
773 $tJournal of Reproduction and Development$gv. 25, n. 2, p. 243-252, May. 1971.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
06/02/2014 |
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Data da última atualização: |
05/02/2021 |
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Autoria: |
PARRY, M. M.; MÖLLER, M. R. F. |
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Afiliação: |
MAURICIO MÖLLER PARRY, BOLSISTA CPAES; MARIA REGINA FREIRE MÖLLER, CPATU. |
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Título: |
Teores de enxofre de um latossolo amarelo, após manejos tradicionais de capoeira sem adubação. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Boletim da Faculdade de Ciências Agrárias do Pará, Belém, PA, n. 27, p. 153-163, jan./jun. 1997. |
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Idioma: |
Português |
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Palavras-Chave: |
Teores. |
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Thesagro: |
Capoeira; Enxofre; Latossolo Amarelo; Manejo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220947/1/Teores-de-enxofre-de-um-latossolo.pdf
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Marc: |
LEADER 00566naa a2200181 a 4500
001 1978874
005 2021-02-05
008 1997 bl uuuu u00u1 u #d
100 1 $aPARRY, M. M.
245 $aTeores de enxofre de um latossolo amarelo, após manejos tradicionais de capoeira sem adubação.
260 $c1997
650 $aCapoeira
650 $aEnxofre
650 $aLatossolo Amarelo
650 $aManejo
653 $aTeores
700 1 $aMÖLLER, M. R. F.
773 $tBoletim da Faculdade de Ciências Agrárias do Pará, Belém, PA$gn. 27, p. 153-163, jan./jun. 1997.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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