First results obtained about the contents in lipid, protein, water, ash and free fatty-acids, in same species of sea-fish most commonly used in feeding in aquaculture

In this report; we introduce the first results obtained about the contents in Lipid, Protein, Water, and Ash of the following species: Bogue (Boops boops,L.), Horse mackerel (Trachurus trachurus,L.), Mackerel (Scomber scombrus, L.), Blue whiting (Micromesistius poutassou, R.). In Spain, these species are basicaly used as much for their fresh consumption as for the production of fodder and flour for Aquaculture At the same time, the contents in free fatty acids of the same species in different periods of cold conservation are introduced.A cette comunication nous presentons les premiers resultés obtenues du contenue de grases, proteines, humedité et cendres du suivantes species: Bogue (Boops boops, L.), Chinchard (Trachurus trachurus, L.), Maquereau (Scomber scombrus, L.) et Poutassou (Micromesistius poutassou,R.). Cettes espéces sont fondamentellement employees en Spagne autant pour son employee domestique comme pour la production de aliments et farines pour l'acuiculture. Au meme temps ont presente le contenue en acides grases libres des memes espéces en diferents periodes de conservation au froid