Data/hora: 14/06/2024 08:44:27

Provedor de dados: | 5
País: | France
Título: | Biochemical composition and energy value of Crassostrea gigas (Thunberg) cultured in the bay of Marennes-Oleron
Autores: | Deslous-paoli, Jean-marc; Heral, Maurice.
Data: | 1988
Ano: | 1988
Palavras-chave: | Crassostrea gigas; Winter loss of flesh; Reproductive effort; Energy value; Biochemical composition; Crassostrea gigas; Amaigrissement hivernal; Effort de reproduction; Valeur énergétique; Composition biochimique.
Resumo: | In the bay of Marennes-Oleron the dry flesh of Crassostrea gigas ranged from 29 to 52% proteins, 10 to 23% ash, 6 to 20% lipids and 0 to 4% carbohydrates of which 48.3 ± 21.6% were glycogen. The energy value ranged from 18.84 to 23.47 joule. Mg(-1) ash free dry weight (mean 20.27 J. mg(-1). Reproductive effort varied from 17.8 to 55.9% dry weight for males, and 43.1 to 61.9% for females during the first and third year of reproduction respectively. A high energy value for female gametes (23.47 to 26.24 J. mg(-1) dry tissue) was mainly due to a higher level of lipids (17.3 to 23% of dry tissue) in female gametes as compared to that in male gametes (5.9 to 12.3% of dry tissue). During the period of mass-loss which began in October and finished in March, the poor trophic conditionsof the environment resulted in the use of 74.6% of glycogen, 44% of lipids and 36% of proteins tomeet more than 50% of the requirements for basal metabolism.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/1988/publication-2872.pdf
Editor: | EDP Sciences
Relação: | http://archimer.ifremer.fr/doc/00000/2872/
Formato: | application/pdf
Fonte: | Aquatic Living Resources (EDP Sciences), 1988 , Vol. 1 , N. 4 , P. 239-249
Fonte: | EDP Sciences