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Table 4 Effects of diets supplemented with different additives on brush border enzyme activity of early-weaned piglets (Mean values and standard deviations)

From: Recombinant porcine epidermal growth factor-secreting Lactococcus lactispromotes the growth performance of early-weaned piglets

  Control Antibiotic control LL-EV LL-pEGF
Lactase (U/mg)
Duodenum 2.73 ± 0.75 2.07 ± 0.98 1.90 ± 0.29 2.63 ± 0.63
Jejunum 1.32 ± 0.27 1.37 ± 0.48 1.56 ± 0.53 1.24 ± 0.33
Ileum 0.43 ± 0.19 0.45 ± 0.22 0.36 ± 0.09 0.40 ± 0.11
Sucrase (U/mg)
Duodenum 0.69 ± 0.43a 0.99 ± 0.46ab 1.92 ± 1.35ab 2.84 ± 1.00b
Jejunum 3.12 ± 2.28a 5.83 ± 2.58ab 7.03 ± 0.87ab 9.49 ± 2.28b
Ileum 8.91 ± 0.42a 9.08 ± 1.51a 9.13 ± 0.95a 11.33 ± 0.93b
Maltase (U/mg)
Duodenum 9.19 ± 1.35 7.17 ± 1.76 10.26 ± 2.45 12.07 ± 3.91
Jejunum 3.78 ± 1.89 4.09 ± 1.61 2.43 ± 0.78 4.74 ± 1.77
Ileum 6.93 ± 1.10ab 4.21 ± 1.42a 4.77 ± 1.45a 10.18 ± 3.30b
APA (ng/g)
Duodenum 23.21 ± 2.16a 20.89 ± 2.64a 25.96 ± 4.33ab 35.19 ± 7.52b
Jejunum 23.24 ± 1.30a 29.68 ± 1.31ab 23.39 ± 5.38a 35.20 ± 4.35b
Ileum 33.69 ± 7.22 33.74 ± 2.07 32.23 ± 3.82 33.20 ± 5.83
APN (ng/g)
Duodenum 8.33 ± 1.44a 6.96 ± 0.68a 9.98 ± 1.27ab 12.33 ± 2.70b
Jejunum 9.27 ± 1.81 9.61 ± 2.83 10.42 ± 1.46 12.44 ± 2.25
Ileum 11.23 ± 2.53 12.15 ± 1.62 11.61 ± 2.01 14.84 ± 3.68
DPP-IV (ng/g)
Duodenum 8.37 ± 1.11a 6.99 ± 0.87a 9.22 ± 1.39ab 11.89 ± 2.47b
Jejunum 10.03 ± 1.92 9.73 ± 0.86 8.34 ± 2.27 9.15 ± 2.44
Ileum 10.32 ± 1.97 10.65 ± 0.91 10.44 ± 1.28 13.35 ± 1.78
  1. N = 6.
  2. LL-EV, empty vector-expressing Lactococcus lactis group; LL-pEGF, pEGF-secreting Lactococcus lactis group; APA, aminopeptidase A; APN, aminopeptidase N; DPP-IV, dipeptidase IV.
  3. a,bMeans with different superscripts in the same row indicate significant differences (P < 0.05).