Table 6 Digestive enzyme activities (U mg−1 protein) in hepatopancreas of P. Vannamei-fed diets formulated with different inclusion levels of novel feed ingredients.

From: Evaluation of different inclusion levels of a novel ingredient combination on growth performance, nutrient utilization and gene expression in Penaeus vannamei

Digestive enzyme (U/mg protein)

Diet 1

Diet 2

Diet 3

Diet 4

p value

Amylase

13.65 ± 0.81

14.31 ± 0.96

15.22 ± 1.04

15.51 ± 1.04

0.150

Protease

23.61 ± 1.04

24.19 ± 1.30

25.20 ± 0.74

25.54 ± 1.05

0.171

Lipase

1.58 ± 0.06c

1.69 ± 0.04b

1.76 ± 0.01ab

1.82 ± 0.03a

0.001

  1. The data are represented as mean ± SD of three replicates per treatments (n = 3) and the values with different superscripts indicate significant differences as determined by Duncan’s test (p < 0.05). (Diet 1: 24.82% inclusion level of PBM, IM, FW, PM, RM and SCP; Diet 2: 28.82% inclusion level of PBM, IM, FW, PM, RM and SCP; Diet 3: 32.82% inclusion level of PBM, IM, FW, PM, RM and SCP; Diet 4: 36.82% inclusion level of PBM, IM, FW, PM, RM and SCP).
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