Table 3.
Total, 1 to 35 Days | ||||||||
---|---|---|---|---|---|---|---|---|
Treatments | L-Threonine, % of Requirements | MP, g/kg | Aflatoxin B1, 500 µg/kg | FI 1, g | BWG 2, g | FCR 3 | EPEF 4 | EBI 5 |
T1 | 100 | 0 | − | 2725.2 | 1627.4 | 1.68 | 269.2 | 261.5 |
T2 | 100 | 0 | + | 2736.7 | 1609.1 | 1.71 | 265.5 | 257.9 |
T3 | 100 | 1 | − | 2731.6 | 1591.4 | 1.72 | 264.2 | 256.4 |
T4 | 100 | 1 | + | 2682.0 | 1611.6 | 1.67 | 278.7 | 270.7 |
T5 | 125 | 0 | − | 2738.5 | 1653.9 | 1.66 | 277.1 | 269.3 |
T6 | 125 | 0 | + | 2738.8 | 1615.9 | 1.70 | 264.5 | 257.0 |
T7 | 125 | 1 | − | 2744.6 | 1640.3 | 1.68 | 274.5 | 266.7 |
T8 | 125 | 1 | + | 2747.5 | 1630.2 | 1.69 | 269.6 | 261.8 |
Pooled SEM | 25.87 | 31.16 | 0.03 | 14.29 | 13.98 | |||
Main Effects | Levels | Means 6 | ||||||
L-Threonine | 100 | 2718.9 | 1609.9 | 1.69 | 269.4 | 261.6 | ||
125 | 2742.3 | 1635.1 | 1.68 | 271.4 | 263.7 | |||
Mycofix Plus | 0 | 2734.8 | 1626.6 | 1.68 | 269.1 | 261.4 | ||
1 | 2726.4 | 1618.4 | 1.69 | 271.7 | 263.9 | |||
Aflatoxin B1 | − | 2735.0 | 1628.3 | 1.68 | 271.2 | 263.5 | ||
+ | 2726.2 | 1616.7 | 1.69 | 269.6 | 261.8 | |||
Main Effects and Interaction Effects | p-values | |||||||
L-Threonine | NS | NS | NS | NS | NS | |||
Mycofix Plus | NS | NS | NS | NS | NS | |||
Aflatoxin B1 | NS | NS | NS | NS | NS | |||
L-Threonine × Mycofix Plus | NS | NS | NS | NS | NS | |||
L-Threonine × Aflatoxin B1 | NS | NS | NS | NS | NS | |||
Mycofix Plus × Aflatoxin B1 | NS | NS | NS | NS | NS | |||
L-Threonine × Mycofix Plus × Aflatoxin B1 | NS | NS | NS | NS | NS |
1 Feed Intake. 2 Body Weight Gain. 3 Feed Conversion Ratio. 4 European Production Efficiency Factor. 5 European Broiler Index. 6 Means represent 32 pens of chickens with 10 birds per pen (n = 32/group). NS, p ≥ 0.05.