Table 1.
Milk parameters of dairy cows fed diets contaminated with AFB1 1.
| Item | Control | AFB20 | AFB40 | SEM | p Value |
|---|---|---|---|---|---|
| Daily milk yield (kg/day) | 17.23 | 16.94 | 17.9 | 5.33 | 0.29 |
| Milk fat (%) | 4.93 | 4.50 | 4.69 | 0.11 | 0.32 |
| Milk protein (%) | 4.01 | 4.13 | 4.17 | 0.08 | 0.48 |
| Milk lactose (%) | 5.08 | 5.06 | 5.05 | 0.06 | 0.98 |
| Total solids (%) | 15.17 | 14.73 | 14.97 | 1.17 | 0.58 |
| Urea (mg/dl) | 33.04 | 25.79 | 23.2 | 5.01 | 0.73 |
| SCC (cells/mL) 2 | 0.27 | 0.21 | 0.22 | 0.05 | 0.28 |
| FCM (kg) 2 | 16.19 | 17.03 | 16.54 | 0.58 | 0.59 |
| ECM (kg) 2 | 7.36 | 7.67 | 7.42 | 0.41 | 0.85 |
1 Control group (AFB1 null); AFB20 group (20 μg/kg in the total mixed ration); and AFB40 group (40 μg/kg in the total mixed ration). 2 Feed efficiency (%), milk yield/DMI (dry matter intake); SCC, somatic cell count; FCM, 3.5% fat-corrected milk. Values for 3.5% FCM yield were calculated with the equation: (0.4324 × milk yield) + (16.218 × milk fat); ECM, energy-corrected milk. Values for ECM were calculated with the equation: (milk yield × 0.383% milk fat + 0.242% milk protein + 0.7832)/3.113830.