Data/hora: 22/05/2024 03:44:19

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 08/01/1997
Data da última atualização: | 16/05/2023
Autoria: | WALLACE, J. C.; WALES, R. G.
Título: | Effect of ions on the metabolism of ejaculated and epididymal ram spermatozoa.
Ano de publicação: | 1964
Fonte/Imprenta: | Journal of Reproduction and Fertility, v. 8, p. 187-203, 1964.
DOI: | 10.1530/jrf.0.0080187
Idioma: | Inglês
Conteúdo: | The effects of potassium, magnesium, calcium and phosphate ions on the metabolism of ejaculated and epididymal ram spermatozoa have been studied. Respiration and fructolysis were measured and isotopically labelled fructose was used to assess the contribution of fructose oxidation to total oxygen uptake. Potassium and phosphate ions significantly increased both respiration and fructolysis; magnesium and calcium had much less influence and there were few significant interactions between the ions tested. The most significant effect of washing spermatozoa free of seminal plasma was the reduction in the oxidation of substrates other than fructose. Washing also tended to accentuate the effects of other treatments. There were differences between ejaculated and epididymal spermatozoa in the response ofoxidative metabolism to potassium but, in general, the metabolic patterns of these cells were similar.
Palavras-Chave: | Bioquimica seminal.
Thesagro: | Reprodução.
Thesaurus Nal: | Body fluids; Calcium; Dietary minerals; Fructose; Ions; Magnesium; Pharmacology; Phosphates; Potassium; Reproduction; Seminal plasma proteins; Sheep; Spermatozoa.
Categoria do assunto: | --
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (8624-1) - ADD - AP - DD -  -  -  - DIS