Table 7 Intestinal digestive enzyme activities (U mg−1 protein) of P. Vannamei-fed diets formulated with different inclusion levels of novel feed ingredients note: 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).

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

15.17 ± 0.55ab

14.28 ± 0.44b

16.05 ± 0.58a

15.98 ± 0.59a

0.013

Protease

19.74 ± 1.72

20.92 ± 1.49

22.36 ± 2.08

21.46 ± 1.88

0.165

Lipase

1.38 ± 0.11b

1.50 ± 0.09b

1.78 ± 0.14a

1.92 ± 0.19a

0.006

  1. 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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