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Table 3 Effect of dietary inclusion of M. piperita without probiotic bacterium B. coagulans on growth performance and intestinal enzyme activities of C. catla (Experiment 1)

From: Synergistic effects of autochthonous probiotic bacterium and Mentha piperita diets in Catla catla (Hamilton, 1822) for enhanced growth and immune response

Growth parameters Dietary treatments
C1 P1 P2 P3 P4
Initial weight (g) 1.04 ± 0.01 1.01 ± 0.004 1.02 ± 0.003 1.05 ± 0.020 1.06 ± 0.002
Final weight (g) 2.50 ± 0.010C 2.79 ± 0.360B 2.90 ± 0.090AB 3.05 ± 0.050A 2.78 ± 0.250B
Weight gain (g) 1.47 ± 0.020C 1.78 ± 0.030AB 1.87 ± 0.080AB 2.00 ± 0.070A 1.72 ± 0.030B
Growth % gain in BW 141.09 ± 4.150C 175.82 ± 3.170AB 181.92 ± 7.590AB 192.18 ± 9.920A 161.48 ± 2.240BC
Growth per day in BW 0.92 ± 0.030C 1.04 ± 0.010AB 1.05 ± 0.040AB 1.09 ± 0.050A 0.99 ± 0.010B
Specific growth rate (SGR) (% BW d−1) 0.38 ± 0.010C 0.44 ± 0.010AB 0.45 ± 0.010AB 0.46 ± 0.150A 0.42 ± 0.003BC
Feed conversion ratio (FCR) 3.13 ± 0.090A 2.74 ± 0.030B 2.68 ± 0.110B 2.58 ± 0.080B 2.81 ± 0.050AB
Gross conversion efficiency (GCE) 0.32 ± 0.010C 0.36 ± 0.004AB 0.37 ± 0.020AB 0.39 ± 0.010A 0.36 ± 0.010B
Protein efficiency ratio (PER) 0.04 ± 0.001C 0.04 ± 0.001AB 0.05 ± 0.002AB 0.05 ± 0.002A 0.04 ± 0.003BC
Apparent protein digestibility (APD) (%) 74.25 ± 0.620B 74.32 ± 0.600B 75.68 ± 0.530AB 77.67 ± 0.420A 75.50 ± 0.670AB
Protease activity (mg of tyrosine liberated mg of protein−1 h−1) 1.77 ± 0.010D 2.14 ± 0.010C 2.21 ± 0.010B 2.33 ± 0.010A 2.14 ± 0.010C
Amylase activity (mg of maltose liberated mgof protein−1 h−1) 1.29 ± 0.020E 1.47 ± 0.010D 1.72 ± 0.010B 2.09 ± 0.010A 1.57 ± 0.010C
Cellulase activity (mg of glucose liberated mg of protein−1 h−1) 0.97 ± 0.010E 1.11 ± 0.010D 1.20 ± 0.010C 1.40 ± 0.010A 1.29 ± 0.010B
  1. Weight gain (g) = W2 − W1; Growth % gain in BW = (W2 − W1)/W1 × 100; Growth per day in % BW = {2(W2 − W1)/t(W1 + W2)} × 100; SGR = (ln W2 − ln W1)/t × 100; FCR = Feed Offered (Dry wt.) (g)/Body weight gain (Wet wt.) (g); GCE = Body weight gain (Wet wt.) (g)/Feed Offered (Dry wt.) (g); PER = Wet Weight Gain (g)/Crude protein fed (%)
  2. Where, W1 = Initial Weight (g), W2 = Final Weight (g), Duration of experiment (No. of days)
  3. Note: All values are mean ± S.E. of mean. Values with different superscript in the same row are significantly (P < 0.05) different (Tukey’s honest test)