Effects of Dietary Vitamin A on Artemesia longinaris and Pleoticus muelleri (Crustacea, Decapoda, Penaeoidea).

FENUCCI, JORGE LINO; FERNÁNDEZ GIMENEZ, ANALIA VERÓNICA; PETRIELLA, ANA MARIA DEL CARMEN

Hermosillo, Sonora, México

Simposio; VII Simposio Internacional de Nutrición Acuícola; 2004

EFFECTS OF DIETARY VITAMIN A ON ARTEMESIA LONGINARIS AND PLEOTICUS MUELLERI (CRUSTACEA, DECAPODA, PENAEOIDEA) The objetive was to determine the optimun vitamin A values to ensure a good health condition and a good growth of the argentine penaeoid shrimp. several diets were designed containing different amounts of vitamin A, taking as basis a purified ration having as main ingredients vitamin free casein, manioc starch, protein concentrate of squid and vitamin free fish oil. two experiments were carreid out with wild prawn and two with wild shrimp. feeds having 0; 40; 100; 140; 200; 300 and 500 mg/kg were tested. the present work permits to conclude that the vitamin A is essential nutrient for A. longinaris and P. muelleri, since under nutritional stress the hepatopancreas suffers histological changes that cna produce a reduction of the organ activity.