Instituto Nacional de Investigación y Desarrollo Pesquero, (INIDEP), Argentina

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Contribución INIDEP:428.
Aut. Analit.: Fenucci, J.L.; Saez, M.B.; Petriella, A.M.; Müller, M.I.
Tít. Analit.: Estudios sobre la nutrición de Penaeus stylirostris en la Argentina. [Nutritional studies on Penaeus stylirostris in Argentine]
Serie: Revista Latinoamericana de Acuicultura. 19. 22-28
P.imprenta: OLDEPESCA, Organizacion Latinoamericana de Desarrollo Pesquero, Lima. PE. 1984. 22-28
Descriptores: experimentos alimenticios; larvas de crustáceos; crecimiento; condiciones controladas; alimentación artificial. Feeding experiments; Controlled conditions; Artificial feeding; Growth; Crustacean larvae.
Resumen: To assess the possibility to introduce Penaeus stylirostris in Argentina, several experiments were run with postlarvae and juveniles of this species. After two nutritional experiments on postlarval shrimp testing live nauplii Artemia and several ground prepared feeds, the best growth and survival was obtained with shrimp fed a diet containing as main ingredients: 30 o/o mussel meal, 15 o/o squid meal, 5 o/o soy meal, 20 o/o fish meal and 22 o/o wheat bran; supplemented with live nauplii Artemia. For both experiments and after a month of experimental trial, the increases in mean weight were 799 and 219 o/o respectively with survivals over 90 o/o. In a third experiment, with shrimp of around 0,3 g of initial mean weight, several prepared feeds were tested having different percentages of fish meal in their composition (8,20 and 30 o/o). After 47 days of experimentation, the survival was between 80 and 85 o/o; but the diet having 30 o/o fish meal in its composition promoted the best growth (226 o/o of increase in mean weight). The results obtained feeding this diet are related to the higher amount of highly unsaturated fatty acids of linolenic serie (20: 5w3 and 22:6w3) in the fish meal.

     


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