MRIGAL

Control

Experiment

Difference

18.100

17.300

0.800

9.05 (0.5x18.1)

7.785 (.45x17.3)

1.265

20.00

30.00

10.00*
*proportionate to control 19.116 lack
Net extra production=10.8
lack

75%

90%

15%

15.00

23.00

8.00*

*proportionate to control 14.337lack.
Net extra production = 8.663 lack

Assuming spawn rate @ Rs. 400/- per lack  = Benefit Rs.3,465.20

In Lack

1.10

1.73

0.63

Total Benefit per operation = Rs.3,465/-

1)      In normal condition assuming 60 operation per season, Total Benefit = Rs. 2,07900/-

2)      With application of  Fish Grower operation can be achieved for 75 times  Total Benefit = Rs.2,59,875./-A

Less cost of Instrument =
Rs. 40,000/-= Rs. 2,19875/-

Net Profit after recovery of Instrument cost.

Hence, Total Gain achievable =

1^st year=  Rs.  2,19875/-
2^nd year= Rs.  2,59,875/-
3^rd year= Rs.  2,59,875/-
4^th year =Rs.  2,59,875/-
5^th year= Rs.  2,59,875/-
6^th year= Rs.  2,59,875/-
7^th year= Rs.  2,59,875/-
8^th year =Rs.  2,59,875/-

Total Benefit =Rs. 20,39000/-