|
Registro Completo |
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
01/08/1992 |
|
Data da última atualização: |
18/05/2023 |
|
Autoria: |
UMO, I.; FITZPATRICK, R. J.; WARD, W. R. |
|
Título: |
Parturition in the goat: plasma concentrations of prostaglandin F and steroid hormones and uterine activity during late pregnancy and parturition. |
|
Ano de publicação: |
1976 |
|
Fonte/Imprenta: |
Journal of Endocrinogy, v. 68, n. 3, p. 383-389, 1976. |
|
DOI: |
10.1677/joe.0.0680383 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Changes in plasma concentrations of hormones and uterine activity associated with spontaneous parturition in the goat were examined. No change in oestradiol-17β concentration was detected during the experimental period, but oestradiol-17α consistently increased in concentration 3–4 days before parturition. This was followed by an increase in prostaglandin F two days later, while a pre-partum decline in progesterone concentration occurred 18–20 h after the significant increase in prostaglandin F. The onset of uterine contractions coincided with a significant decline in progesterone concentration and a period of continually rising prostaglandin F and oestradiol-17α concentrations. Uterine activity expressed in Montevideo units did not change until 10–8 h before foetal expulsion. These results support the hypothesis that in the goat the elevated prepartum concentration of prostaglandin F brings about luteolysis and a subsequent decline in progesterone concentration. |
|
Palavras-Chave: |
Prostaglandins F. |
|
Thesagro: |
Caprino; Endocrinologia; Estradiol; Fisiologia; Obstetrícia; Reprodução. |
|
Thesaurus Nal: |
Females; Goats; Physiology; Pregnancy; Progesterone; Reproduction; Uterus. |
|
Categoria do assunto: |
-- |
|
Marc: |
null
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
