Phosphorus availability of inorganic phosphates and fish meals in European sea bass (Dicentrarchus labrax L.) juveniles

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Pimentel Rodrigues, A (Autor) Outra; Oliva Teles, A (Autor) FCUP

Revista

Título: Aquaculture

Vol. 267

Páginas: 300-307

ISSN: 0044-8486

Editora: Elsevier

Indexação

ISI Web of Knowledge - 23 Citações

Scopus - 29 Citações

Classificação Científica

FOS: Ciências agrárias > Agricultura, silvicultura e pescas

Outras Informações

ID Authenticus: P-004-8WJ

DOI: 10.1016/j.aquaculture.2007.01.018

Abstract (EN): A trial was conducted to evaluate the apparent availability of phosphorus (P) of five fish meals and three inorganic phosphorus sources (mono-, di- and tricalcium phosphate) to European sea bass juveniles. A cont gluten based diet containing 0.2% P was used as the basal diet. Test diets were formulated with different proportions of basal diet and test ingredients in order to have final phosphorus levels of 0.5%. This level was used as it is marginally lower than the estimated P requirement of sea bass, aiming that P availability is not affected by excessive dietary P concentration. Moreover, three other test diets were formulated to include only 0.3% of inorganic P sources, to evaluate the effect of dietary P levels on availability. ADC of P of fish meals ranged from 49 to 63% and was generally related to the fish meat ash content. Within the inorganic phosphorus sources, ADC of P was not affected by dietary phosphorus level but was significantly affected by supplement source. Mean P availability decreased in the following order: dicalcium phosphate (68%)>monocalcium phosphate (56%)>tricalcium phosphate (50%).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8