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Table 4 Feed utilisation parameters of L. rohita fingerlings after 100 days of feeding

From: Nutritional evaluation of a short-horned grasshopper‚ Oxya hyla hyla (Serville) meal as a substitute of fishmeal in the compound diets of rohu, Labeo rohita (Hamilton)

 

RD

TD

D1

D2

D3

D4

D5

D6

D7

FCR

1.89 ± 0.38a

1.99 ± 0.48a

1.82 ± 0.22b

1.72 ± 0.20b

2.19 ± 0.40a

2.05 ± 0.39a

1.95 ± 0.41a

PER

1.59 ± 0.08b

1.62 ± 0.09a

1.67 ± 0.10a

1.74 ± 0.12a

1.36 ± 0.07c

1.40 ± 0.06c

1.54 ± 0.17b

PRV

1.45 ± 0.17

1.43 ± 0.14

1.46 ± 0.24

1.48 ± 0.23

1.46 ± 0.31

1.44 ± 0.29

1.46 ± 0.37

LRV

2.68 ± 0.27

2.63 ± 0.38

2.53 ± 0.39

2.73 ± 0.30

2.50 ± 0.39

2.72 ± 0.44

2.61 ± 0.56

ARV

1.09 ± 0.16

1.13 ± 0.20

1.09 ± 0.30

1.15 ± 0.20

1.27 ± 0.22

1.27 ± 0.23

1.20 ± 0.17

Nm

64.04 ± 6.61a

58.81 ± 6.88b

65.80 ± 3.20a

67.39 ± 2.54a

56.97 ± 1.27b

59.51 ± 8.21b

60.86 ± 4.23b

APD

80.28 ± 1.23a

78.11 ± 2.28b

80.37 ± 1.61a

81.66 ± 1.65a

78.55 ± 2.62b

77.97 ± 2.57b

79.12 ± 2.56b

  1. Means with ±SD are values of triplicate groups. Figures in the same row with different superscripts are significantly different (one-way ANOVA followed by DMRT, p < 0.05). RD reference diet, TD test diet, FCR feed conversion ratio, PER protein efficiency ratio, PRV protein retention value, LRV lipid retention value, ARV ash retention value, Nm nitrogen metabolism, APD apparent protein digestibility