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Production of Chhadi in Cemented Tank

by Anusha Neupane
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Current price ₹3,647.00
Original price ₹4,277.00
Original price ₹4,277.00
Original price ₹4,277.00
(-15%)
₹3,647.00
Current price ₹3,647.00

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Book cover type: Paperback
  • ISBN13: 9783389074633
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Grin Verlag
  • Publisher Imprint: Grin Verlag
  • Publication Date:
  • Pages: 58
  • Original Price: GBP 32.9
  • Language: English
  • Edition: N/A
  • Item Weight: 87 grams
  • BISAC Subject(s): General

Bachelor Thesis from the year 2023 in the subject Agrarian Studies, grade: 4.00, language: English, abstract: Farming of Mrigal (Cirrhinus mrigala) and Rohu (Labeo rohita) under single stocking and multiple harvesting to produce finger size fish, called Chhadi, is emerging rapidly in Nepal. The culture of Chhadi fish was conducted for the period of 90 days from 15th Sept to 15th Dec, 2023 to investigate its production and gross margin. A cemented tank of 25 m in size was used to calculate its growth, yield and survival. Fry of Mrigal and Rohu with an average size of 1.37 1.14 g and 2.92 1.02 g respectively were stocked at the stocking density of 15 fry/m . The ratio of Mrigal and Rohu was 9:1. Pond preparation was done to create suitable conditions for Chhadi production, Urea and DAP were used at doses of 4.7 g/m /week and 3.5 g/m /week respectively. The feeding was done at 5% body weight at initial 2 months twice a day and at last 1 month used 3% of body weight using pelleted feed which was prepared using mustard oil cake, rice bran and soyabean meal in 2:2:1 ratio. Water quality parameters DO, temperature, pH and Secchi disc visibility were recorded daily. The average temperature at morning (7 AM) and afternoon (3 PM) were 25.2 4.5 C and 28.6 4.2 C respectively, average DO at morning and afternoon; 4.3 1.4 mg/L and 7.3 1.2 mg/L respectively, average pH at morning and afternoon 8.1 0.3 and 8.3 0.2 and Secchi disc visibility at 11 AM was 39.2 14.8. During the culture period, sampling was conducted at a fifteen days interval to ensure the growth rate and for feed adjustment. From the study, the average harvested weight of Rohu and Mrigal was 33.21 8.6 and 26.25 5.70 g/fish respectively. Similarly, the total weight gain of Rohu was 853 g/tank and that of Mrigal was 6770 g/tank. The overall survival rate of Chhadi was 87.93%. The overall extrapolated GFY and NFY were 12.99 t/ha/yr and 12.36 t/ha/yr respectively while the AFCR was 1.28. The B/C ratio of Chhadi prod

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