A qualitative and A quantitative Study of Free Pool Amino Acids in Redia and Cercariae , (Furcocercous) which Infect Lymnaea aurcularia Snials

Thin layer Chromatography technique was used to determine the free pool amino acids in rediae and cercariae (Furcocercous) wich were obtained from Lymnaea aurcularia snials, collected from Tigris river (Al-Rashedeya area) in Mosul city. The qualitative analysis suggested presence of free amino acids : alanine, leucine, lysine, histidine and valine in the redia, while: alanine and histidine were found in the cercariae, by using nihydrine reagent as to the quantitative determination for these free amino acids they were 0.002-0.005 g/ml in both redia and cercarie.