Effect of mixed feeding schedules on growth and production of sutchi catfish, Pangasius hypophthalmus (Sauvage) reared in earthen ponds
2010
Hossain, M. A. | Hossain, M. D. | Bulbul, M. | Kader, M. A.
A feeding trial was conducted to evaluate the effect of mixed feeding schedule on the growth and production of sutchi catfish (Pangasius hypophthalmus, Pangasiidae) in experimental ponds (30 m2 ) for 70 days. Six feeding regimes employed were: continuous normal feeding (T1), alternate day feeding (T2), alternating 3 days normal feeding (NF) and 4 days restricted feeding (RF) (T3), alternating 7 days NF and 7 days RF (T4), alternating 14 days NF and 14 days RF (T5) and alternating 28 days NF and 28 days RF (T6). The restricted feeding was 1% of fish body weight. Results showed that the mean weight gain of fish was significantly (P< 0.05) higher productions (kg ha-¹) were observed in T1 and T4. The highest profit was obtained in T4 due to compensatory growth and saving of feed cost. The results of the present study demonstrated that a mixed feeding schedule of alternating periods of 7 days normal feeding followed by 7 days of restricted feeding is more profitable for sutchi catfish farming than continuous normal feeding.
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