Skip to main content

Table 2 Growth performance of ducks at days 14 and 35 of age 1 , Exp. 1

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

Item Enzyme 14 d of age 35 d of age
BW, g Feed intake, g F/G, g/g BW, g Feed intake, g F/G, g/g
Treatment2
    T1:PC - 695.1a 955.0a 1.48a 2395a 3950.1a 2.07
    T2:NC1 - 676.8ab 970.1b 1.55b 2321ab 3908.7a 2.13
    T3:NC1 + 690.7a 996.4b 1.56b 2371ab 3966.0a 2.12
    T4:NC2 - 664.4b 956.2a 1.56b 2276b 3749.6b 2.09
    T5:NC2 + 706.2a 1021.3b 1.56b 2391a 3978.1a 2.11
    SEM   6.22 9.71 <0.01 25.37 43.22 0.02
    P-Value   <0.01 <0.01 <0.01 <0.01 <0.01 0.239
P-Value of factorial analysis3
    NR4   0.803 0.589 0.615 0.625 0.160 0.355
    Enzyme   <0.01 <0.01 0.626 <0.01 <0.01 0.782
    NR × Enzyme 0.050 0.067 0.660 0.217 0.043 0.454
  1. a,bMeans 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 7 pens of 16 ducks.
  3. 2 PC = 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.
  4. 3Using negative control treatments with or without enzyme supplementation.
  5. 4NR = Apparent metabolizable energy, digestible amino acid, available P and Ca reduction.