Biochemical Composition during the Embryonic Development and Freshly Hatched Zoea of Macrobrachium idella idella (Hilgendorf, 1898)
The proximate composition of four egg stages and 1st zoeal stage of Macrobrachium idella idella were investigated. The protein content of egg was gradually decreased from egg stage-1 (69.32%) to egg stage-IV (54.56%) and the protein content in Ist zoeal stage was found to be 52.42%. The carbohydrate content increased from egg stage-I (3.24%) to freshly hatched Ist zoea. Lipid values showed a decreasing trend from egg stage-I (15.86%) to freshly hatched Ist zoea (4.82%). The water content uniformly increased from egg stage I (62.26%) to freshly hatched Ist zoea stage (79.68%). Among total 9 individual saturated fatty acids reported, the palmitic acid (C16:0) was maximum in all egg stages and in Ist zoea. Which is followed by stearic (C18:0) and myristic (C14:0) acids. The total essential amino acids were showed increasing trend from the egg stage I to IV. However they were little bite low in I zoea stage when compared to egg stage IV. As in essential amino acids, non essential amino acids were also followed almost similar trend. Among total 9 amino acids, 5 amino acids (glutamine, asparagine, glycine, cystine and alanine) were gradually increased from egg stage I to IV.