Table 2 Growth performance, feed conversion and survival rate of fingerlings Labeo rohita fed diets containing varying levels of papain enzyme for 60 days

IBW (g fish⁻¹)

17.57 ± 1.57

17.65 ± 1.21

17.72 ± 0.55

17.60 ± 0.62

17.57 ± 0.42

17.66 ± 0.76

0.366

FBW (g fish⁻¹)

27.80 ± 1.13^e

29.19 ± 0.87^c

30.75 ± 2.05^a

29.49 ± 0.35^b

29.04 ± 1.70^c

28.07 ± 0.47^d

0.000

WG (%)

58.23 ± 0.83^d

65.35 ± 0.78^c

73.48 ± 0.70^a

67.55 ± 0.40^b

65.25 ± 1.15^c

58.96 ± 0.95^d

0.000

DGR (g day⁻¹)

1.71 ± 0.01^d

1.92 ± 0.01^c

2.17 ± 0.03^a

1.98 ± 0.01^b

1.91 ± 0.03^c

1.74 ± 0.02^d

0.000

SGR (% day⁻¹)

0.76 ± 0.005^d

0.84 ± 0.005^c

0.92 ± 0.004^a

0.86 ± 0.002^b

0.84 ± 0.007^c

0.77 ± 0.006^d

0.000

GCE (%)

0.27 ± 0.007^bc

0.29 ± 0.007^a

0.29 ± 0.003^a

0.28 ± 0.003^ab

0.30 ± 0.005^a

0.26 ± 0.005^c

0.002

FCR

2.90 ± 0.03^a

2.65 ± 0.01^b

2.44 ± 0.01^d

2.59 ± 0.02^c

2.64 ± 0.03^bc

2.88 ± 0.04^a

0.000

SR (%)

100.00 ± 0.00

100.00 ± 0.00

100.00 ± 0.00

100.00 ± 0.00

96.67 ± 5.77

100.00 ± 0.00

0.458