The lsraeli Joumal of Aquaculture - Bamidgeh 51(3), 1999, 122-123
ESSENTIALITY OF VITAMINS FOR JUVENILE WHITE SHRIMP
H.R.V. Reddy, Ashwin Rai and T.S. Annappaswamy
University of Agricultural Sciences, College of Fisheries, Mathsyanagar
Mangalore - 575 002 India
(Received 29.1.99, Accepted 6.10.99)
A growth experiment was conducted to evaluate the dietary essentiality of vitamins for juvenile white shrimp, Penaeus indicus. Effects of deletion of individual vitamins [thiamine, riboflavin, pyridoxine
cyanocobalamine, pantothenic acid, folic acid, niacin, biotin, choline, inositol, ascorbic acid, vitamin
A acetate, calciferol (vitamin D), α-tocopherol (vitamin E) and menadione (vitamin K)] from semi-purified diets on shrimp growth, survival and midgut gland morphology were examined in a seven week feeding trial.
Growth rate was poorest for the control treatment without vitamin supplements, inositol, choline, pantothenic acid and α-tocopherol deficient diets. Shrimp fed diets deficient in niacin,
choline, inositol, ascorbic acid and α-tocopherol showed poor survival. All treatments except the control diet supplemented with vitamins and the biotin and menadione deficient diets showed changes in the midgut cell profile. Detachment or destruction of the epithelial cells was observed in most cases but most severely in the control treatment without vitamin supplement, followed by the inositol, choline and ascorbic acid deficient diets.