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| The Muscular Proximate Composition and Activities of Digestive and Immune Enzymes in Different Sizes of Mozambican Tiger Shrimp Penaeus monodon |
| ZHOU Fan,XIAO Jinxing,HE Zhongyang,ZHANG Haiqi,HE Feng,WU Jieqiong |
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Abstract The muscle proximate composition ,activities of digestive and immune enzymes were analyzed and compared in Mozambican tiger shrimp Penaeus monodon with body weight of (3 .36 ± 0 .38) g ,(8 .88 ± 0 .48) g and (14 .92 ± 0 .53 ) g . The results showed that the muscular moisture was found to be significantly decreased as the shrimp grew (P<0 .05) .However ,the muscular crude protein and crude lipid contents increased with increase in body weight . The tissue protease activities were arranged as :hepatopancreas>intestine> stomach ;the lipase activities as :hepatopancreas≈ intestine> stomach ;and the amylase activities as :intestine > hepatopancreas> stomach .The digestive enzymes activities were varied with the body weight ,the hepatopancreas and intestine being recognized as the primary digestive tissues . The activities of alkaline phosphatase and acid phosphatase were found to be decreased in hepatopancreas with the increasing body weight (P<0 .05) .The minimal activity of catalase was observed in mid-sized shrimp while the minimal superoxide dismutase activities were found in the small shrimp .
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Received: 25 November 2013
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