Effects of dietary lipid levels on growth, feed conversion ratio, nutrient retention and carcass composition of yellow mystus fingerlings
1998
Phromkunthong, W. | Nopnorp, T. | Satchakul, R. | Supamattaya, K. (Prince of Songkla Univ., Songkhla (Thailand). Faculty of Natural Resources. Dept. of Aquatic Science)
Study was conducted on fingerlings of Mystus nemurus to investigate the effects of supplemented dietary lipid on growth, feed conversion ratio, protein retention and carcass composition. The experiment comprised five treatments with three replications each. Fish in treatment 1 were fed diets supplemented with 13 percent lipids, whereas fish in teatment 2, 3, 4 and 5 were fed diets with 16, 19, 22 and 25 percent lipids, respectively, Over the ten week growth trial, no significant difference was detected in terms of weight gain and specific growth rate among all treatments, whereas feed conversion ratio, protein efficiency ratio and net protein utilization showed significant differences (P0.05). Crude protein, fat and ash contents of carcass were significantly (P0.05) influenced by dietary lipid. Furthermore, proximate analysis of fish flesh showed significant differences in moisture, protein and lipid content among treatments. The hepatosomaltic index showed no correlation with dietary lipid levels.
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Эту запись предоставил Kasetsart University