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Table 4 Effect of dietary inclusion of M. piperita with probiotic bacterium B. coagulans on growth performance and intestinal enzyme activities of Catla catla (Experiment 2)

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

Growth rarameters Dietary treatments
C2 PP1 PP2 PP3 PP4
Initial weight (g) 1.05 ± 0.010 1.03 ± 0.010 1.05 ± 0.010 1.06 ± 0.002 1.03 ± 0.010
Final weight (g) 2.81 ± 0.010C 2.93 ± 0.050BC 3.02 ± 0.060AB 3.21 ± 0.150A 2.78 ± 0.390C
Weight gain (g) 1.75 ± 0.001C 1.90 ± 0.040BC 1.97 ± 0.080AB 2.15 ± 0.010A 1.75 ± 0.040C
Growth % gain in BW 166.53 ± 2.640B 184.27 ± 1.940AB 188.10 ± 9.410AB 202.58 ± 1.340A 169.73 ± 3.220B
Growth per day in BW 1.01 ± 0.010B 1.07 ± 0.010AB 1.07 ± 0.030AB 1.12 ± 0.003A 1.02 ± 0.010B
Specific growth rate (SGR) (% BW d−1) 0.42 ± 0.003B 0.45 ± 0.003AB 0.46 ± 0.020AB 0.48 ± 0.003A 0.43 ± 0.010B
Feed conversion ratio (FCR) 2.76 ± 0.030AB 2.64 ± 0.030C 2.74 ± 0.090AB 2.53 ± 0.020BC 2.84 ± 0.010A
Gross conversion efficiency (GCE) 0.36 ± 0.004B 0.38 ± 0.004AB 0.37 ± 0.010B 0.40 ± 0.003A 0.35 ± 0.002B
Protein efficiency ratio (PER) 0.04 ± 0.003C 0.05 ± 0.001BC 0.05 ± 0.002AB 0.05 ± 0.0003A 0.04 ± 0.001C
Apparent protein digestibility (APD) (%) 74.64 ± 0.490B 77.43 ± 0.640AB 78.37 ± 0.630A 78.96 ± 0.680A 76.62 ± 0.570AB
Protease activity (mg of tyrosine liberated mg of protein−1 h−1) 2.23 ± 0.020C 2.30 ± 0.020B 2.33 ± 0.020B 2.62 ± 0.020A 2.27 ± 0.020BC
Amylase activity (mg of maltose liberated mg of protein−1 h−1) 1.68 ± 0.020D 1.84 ± 0.010E 2.13 ± 0.020B 2.40 ± 0.010A 1.93 ± 0.010C
Cellulase activity (mg of glucose liberated mg of protein−1 h−1) 1.20 ± 0.020E 1.35 ± 0.010D 1.47 ± 0.020C 1.73 ± 0.010A 1.55 ± 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)