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Water allocations for the farming of freshwater fish in rural parts of Madhepura, in the state of Bihar

Kalyani Kumaria, Kumar Ramashankara & Arun Kumarb*
aDepartment of Zoology, P. Sc. College, B. N. Mandal University, Madhepura, Bihar, India
bUniversity Department of Zoology, B. N. Mandal University, Madhepura, Bihar, India
Received : 15th June, 2022 ; Revised : 16th July, 2022

Abstract– The use of water in freshwater fish production in semi-intensive fish culture is the topic of this research, which focuses on rural areas of Madhepura, Bihar, India. The usage of water in the fish pond takes into account both the loss of water due to evaporation and the requirements for water exchanges. According to the findings of the present study, the amount of water necessary for fish farming is estimated to be 10.45 m3/Kg of fish production when semi-intensive culture is used and additional feed is provided. There is a mechanism linked with the production of feed that accounts for approximately 7.6 m3/Kg of fish production. Seepage loss each year comes to roughly 118.26 cm on average, whereas evaporation loss per year comes in at 149.83 cm on average.

Key words: Water budgets, freshwater fish productivity, seepage, pond evaporation.

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