Comparative Performance of the Polycultured Nile Tilapia (Oreochromis niloticus) and Giant Freshwater Prawn (Macrobachium rosenbergii) in Conventional and Deep-Water Concurrent Rice Cum Fish Farming System

Document Type : Original Article

Authors

Pampanga State Agricultural University

Abstract

Rice cum fish farming is an old practice of integrating the raising of fish in the production of rice. Morever, it is considered as a sustainable agricultural approach, combining rice and fish cultivated simultaneously to increase yield and enhance farmer’s profit. Integrated farming with the use of deep-water system is considered a viable option, particularly in flood prone areas. This study investigated the performance of tilapia and prawn in both conventional (CCRF) and deep-water (DCRF) concurrent rice-fish systems. An experiment was conducted in a 3-month period. The result revealed that there is significant difference between the two rice-fish farming systems in terms of temperature, dissolved oxygen, total dissolved solids and conductivity (P<0.05). Meanwhile, water quality parameters such as pH, specific gravity, salt content, ammonia, nitrite, nitrate and phosphate did not bear any significant difference (P>0.05). There is also significant difference (P<0.05) between stocks in CCRF and DCRF systems in terms of harvest length and weight, indicating bigger tilapia and prawn can be obtained from deep-water than conventional system. Regarding rice performance, comparable results were observed between the two systems (P>0.05). However, economic analysis revealed that deep-water system is more viable than the conventional one. This suggests the advantage of deep-water over its conventional counterpart in simultaneously raising tilapia and prawn in rice integration.

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