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Table 3 Apparent availability of nutrients and AME of test diets 1 , Exp. 2

From: Effects of a multi-enzyme complex on growth performance, nutrient utilization and bone mineralization of meat duck

Item Enzyme Energy % DM 2 , % CP, % EE, % Ash, % Ca, % P , % AME, kcal/kg
Treatment3
    T1:PC - 84.7a 80.9a 81.0a 92.8a 40.4a 57.7ab 51.1ab 3254
    T2:NC1 - 83.0ab 78.3ab 77.7b 87.8b 32.2a 54.6b 48.8b 3184
    T3:NC1 + 84.9a 80.8a 77.9b 90.0c 42.7a 63.2a 56.4a 3244
    T4:NC2 - 77.6c 71.9c 69.7c 85.4d 16.7c 43.9c 36.9c 2952
    T5:NC2 + 80.8b 75.8b 76.6b 89.4bc 25.4b 64.6a 45.4bd 3069
    SEM   1.00 0.65 0.91 0.49 1.73 2.63 1.40 20.1
     P-Value   <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
P-Value of factorial analysis4
    NR5   <0.01 <0.01 <0.01 0.014 <0.01 0.014 <0.01 <0.01
    Enzyme   <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
    NR × Enzyme 0.261 0.341 <0.01 0.123 0.772 0.059 0.766 0.201
  1. a,b,c,dMeans in the same row, values with the same lowercase letter superscripts mean no significant difference (P > 0.05), different lowercase letter mean significant difference (P < 0.05).
  2. 1Data are means of 6 cages of 1 ducks.
  3. 2DM = dry matter; CP = crude protein; EE = ether extract; Ca = calcium; P = phosphorus; AME = apparent metabolizable energy.
  4. 3PC = positive control; NC1 = −70 kcal/kg, −2.0% digestible amino acids (DAA), −0.1 percentage point available P (avP), −0.1 percentage point Ca; NC2 = −100 kcal/kg, −2.5% DAA, −0.15 percentage point avP, −0.12 percentage point Ca.
  5. 4Using negative control treatments with or without enzyme supplementation.
  6. 5NR = Apparent metabolizable energy, digestible amino acid, available P and Ca reduction.