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We evaluated the effects of dietary vitamin E on the reproductive performance and antioxidant capacity of Macrobrachium nipponense female shrimp. Prawns were fed 0, 40, 80, 160, 320 or 640 mg vitamin E/kg diet for 60 days. The 80 mg/kg group had the highest weight gain and lowest feed conversion rates. And the highest spawning rates were observed in the 80 mg/kg group with no significant differences...
The optimal protein level in the diet of Oriental river prawn was investigated. Four isocaloric diets containing 300 g/kg, 360 g/kg, 420 g/kg, 480 g/kg crude protein (casein) were tested. Prawns fed 420 g/kg or 480 g/kg protein exhibited higher weight gain, specific growth rate, hepatopancreas somatic indices, feed coefficient and survival rate. Trypsin activity in the hepatopancreas increased with...
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