Effects of B group vitamins and choline chloride on the development and protein synthesis in the male larvae of Pimpla turionellae L. (Hym., Ichneumonidae)

The effects on the development and protein levels in the larvae of male Pim pla turionellae L, of different amounts of B group vitamins namely thiamin, riboflavin, Ca-pantothenate, nicotinic acid, pyridoxine-HCl, folic acid an d biotin and a growth factor choline chloride in the meridic diet were inve stigated. Among the vitamins tested, choline chloride and biotin were found to have quantitatively critical values in the diet and increased amounts o f nicotinic acid and folic acid individually in the control diet showed pos itive effects on development and protein levels. A decrease in the levels o f Ca-pantothenate and pridoxine-HCl caused decreases in protein levels, whe reas variations in the levels of thamin and riboflavin did not have any sig nificant effect.