Formulation of Fish Feeds using Indigenous Plant Raw Materials and their Impacts on Growth and Maturity of Small Indigenous Fish Species (SIS) Mystus cavasius (Hamilton, 1822)

Amrita Shaha, Anik Talukdar* and Md Shoebul Islam

A feeding trial lasting 120 days was conducted in earthen ponds to evaluate the effects of different dietary protein levels on the growth performance of Mystus cavasius (Hamilton, 1822) broodstock reared in hapas. Five dietary treatments were tested: four iso-caloric experimental feeds containing 30%, 35%, 40%, and 45% crude protein, and one commercial feed containing 33% protein as a reference. All diets were provided at 5% of total body weight, twice daily at 07:30 and 17:30 h. Each treatment was replicated three times. Growth performance was evaluated based on Average Weight Gain (AWG), body Weight Gain (BWG), Percentage Body Weight Gain (PBWG), Specific Growth Rate (SGR), and Average Daily Weight Gain (ADWG) in both male and female fish. Water quality parameters were monitored throughout the trial. Fish fed the 40% protein diet (MF3) exhibited the highest growth, with AWG of 22.80 ± 2.05 g (male) and 42.2 ± 1.05 g (female), significantly higher (p < 0.05) than other treatments. The 35% protein diet (MF2) followed in performance, with the commercial feed showing comparable results. The Gonadosomatic Index (GSI) values of both male and female were higher in MF3 (40% protein) compared to the other four feeds. Furthermore, Statistical analysis confirmed that the 40% protein diet significantly enhanced all growth metrics. Results suggest that 40% dietary protein is optimal for improving the growth of M. cavasius under hapa-based pond culture conditions.

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Published on: Jun 28, 2025 Pages: 24-31

Full Text PDF Full Text HTML DOI: 10.17352/2455-8400.000100
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