AQUACULTURE PERFORMANCE OF SUGARCANE MOLASSES IN PRACTICAL DIETS AND CHANGE OF BLOOD SUGAR ON JUVENILE GENETIC IMPROVEMENT OF FARMED TILAPIA STRAIN OF NILE TILAPIA (OREOCHROMIS NILOTICUS)
尼罗系吉富罗非鱼(Oreochromis niloticus)幼鱼实用日粮中蔗糖糖蜜的养殖效果与血糖代谢变化

We have studied the aquaculture performance of sugarcane molasses in juvenile Genetic Improvement of Farmed Tilapia strain of Nile tilapia (Oreochromis niloticus) practical diets by progressively increasing its inclusion level at the expense of wheat middling in isonitrogenous (34.4% crude protein) and isoenergetic (16.10MJ/kg) formulated diets. The test results indicated that the survival did not differ among treatments (P>0.05) during the test period (56 days). The intake, growth and feed conversion ratio of fish fed 20% SMS diet showed significantly better than fish fed 20% wheat middling diet (P<0.05). No significant difference with carcass nutrient contents (protein, lipid, ash and moisture) was found among the treatments. The contents of glucose, total protein, cholesterol, triglyceride in serum at fish fed 20% SMS diet were all significantly higher than fish fed 20% wheat middling diet (P<0.05). Results showed that Wheat middling could be entirely replaced by sugarcane molasses in practical diets of juvenile without compromising growth or feed conversion ratio. The higher blood sugar in fish after intake sugarcane molasses diet could be the major cause on positive growth performance and feed conversion ratio in juvenile GIFT strain of Nile tilapia.