Author(s): Hemraj Kathayat, Manish Devkota, Puja Banmali and Nisha Shrestha

Abstract: Pig cum fish farming practice with proper management techniques helps to uplift the living standard of Nepalese people. Culture of carp-tilapia polyculture in integration with the pig was conducted for 120 days in 580 m². The stocking density of fish species was 10,000 fish/ha. The ratio of fish stocked was 5:2:4:1:3:5 (Labeo rohita: Cirrhinus mrigala: Cyprinus carpio: Hypophthalmichthys nobilis: Ctenopharyngodon idella: Oreochromis niloticus), integrated with two pigs. The total weight of fishes was 83.7 kg with a stocking weight of 18.75 kg. The mean harvest weight of L. rohita, C. mrigala, C. carpio, H. nobilis, C. idella, and O. niloticus was 197.3±9.0, 157.4±29.9, 402.2±102.6, 394.3±13.8, 121.5±36.8, and 139.4±20.1 g/fish. The extrapolated GFY and NFY for L. rohita, C. mrigala, C. carpio, H. nobilis, C. idella and O. niloticus was 0.97, 0.19, 1.73, 0.57, 0.27, 0.65 t/ha/yr, and 0.76, 0.15, 1.58, 0.39, 0.20 and 0.30 t/ha/yr respectively. Overall, extrapolated GFY, NFY, survival rate and AFCR were 4.2 t/ha/yr, 3.4 t/ha/yr, 62.93 %, 2.72, respectively. It was found that the B: C ratio of 1.65 can be obtained in carp-Tilapia polyculture in integration with the pig. Thus, it can be concluded that it is an economic enterprise, and can be recommended for small-scale fish farmers of Nepal.

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