Open AccessSTUDY OF NUTRITIONAL REQUIREMENTS AND GROWTH OF Penaeus merguiensis IN TANKS BY MEANS OF PURIFIED AND ARTIFICIAL DIETS
Author(s) -
Aquacop
Publication year - 1978
Publication title -
proceedings of the annual meeting ‐ world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0164-0399
DOI - 10.1111/j.1749-7345.1978.tb00246.x
Subject(s) - penaeus , shrimp , starch , zoology , biology , growth rate , food science , chemistry , fishery , mathematics , geometry
One of the criteria for selecting a shrimp of commercial interest in French Polynesia is the acceptability of artificial diet;. such a criterion has been used to test Penaeus merguiensis. Experiments have been carried out in Centre Océanologique du Pacifique in Tahiti island where the water temperature range is 25–29°C, salinity 35 ppt, pH. 8.2, and photoperiod constant. Juveniles used in this study are hatched in CNEXO‐COP at Vairao. It has been found that a 50–55% protein content diet gives a better growth performance. A carbohydrate such as starch appears more suitable than glucose or glucose plus starch in isonitrogenous purified diets. A vitamin mix rich in vitamin C, choline and inositol provides better results and a mineral mix with 3% magnesium reaches optimum. The major nutritional results for this species are applied to formulation of artificial diets. With the best diet, growth performances are normal: from 2.8 g to 9.0 g in 90 days, with about 60% survival rate at a low density, 20 animals/m 2 under strict control. But at another scale, in 400 m 2 grow‐out tanks, growth was rather low even with an excellent Japanese diet containing 60% protein. Therefore, P. merguiensis does not appear to be a good candidate species for aquafarming in French Polynesia.