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Table 4 Feed inputs and cost calculation based on FCRs of 2.01 and 1.80

From: Enhancing ecological-economic efficiency of intensive shrimp farm through in-out nutrient budget and feed conversion ratio

Age classes

Price of feed (USD kg−1)

Total amount of feed (kg)

Daily amount of feed (kg d−1)

Daily feed cost (USD d−1)

FCR 2.0

FCR

1.8

FCR

2.0

FCR

1.8

FCR

2.0

FCR

1.8

PL15–5 d

$2.14

90

80.6

6

5.4

$12.8

$11.5

15 d–1 month

$1.77

150

134.3

10

9.0

$17.7

$15.9

1 month–2 months

$2.02

540

483.6

18

16.1

$36.3

$32.5

2 months–90 d

$2.02

630

564.2

21

18.8

$42.4

$38.0

Total

 

1410

1263

  

$109.3

$97.9