Table 2.
Intake, performance, feed efficiency, and body measurements of dairy calves fed bulk tank milk (BTM, n = 15), waste milk (WM, n = 15), and pasteurized waste milk (PWM, n = 15) during the period from 4 to 60 d of age.
| Item | Treatment 6 | SEM | p-Value 1 | ||||
|---|---|---|---|---|---|---|---|
| BTM | WM | PWM | T | W | T × W | ||
| Intake | |||||||
| Milk (g of DM/d) | 772.37 a | 764.29 b | 740.87 c | 1.20 | <0.01 | 0.06 | 0.69 |
| Starter (g of DM/d) | 129.95 | 159.72 | 162.44 | 0.73 | 0.13 | <0.01 | <0.01 |
| Total DMI 2 (g of DM/d) | 895.34 | 911.17 | 899.98 | 11.81 | 0.93 | <0.01 | 0.64 |
| Total gross energy 3 (Mcal/d) | 3.48 | 3.91 | 4.23 | 1.21 | 0.21 | <0.01 | <0.01 |
| Total CP 4 (kg/d) | 50.75 | 57.35 | 59.22 | 5.19 | 0.27 | <0.01 | <0.01 |
| Water (L/d) | 1.87 | 1.84 | 1.86 | 0.08 | 0.95 | <0.01 | 0.09 |
| Performance | |||||||
| Initial weight (kg) | 38.49 | 38.19 | 39.51 | 0.43 | 0.62 | - | - |
| Final weight (kg) | 76.03 | 77.43 | 74.09 | 0.82 | 0.77 | - | - |
| Average of total period (kg) | 37.55 | 39.25 | 34.58 | 0.36 | 0.13 | - | - |
| ADG (kg/d) | 0.67 | 0.71 | 0.62 | 0.03 | 0.25 | <0.01 | 0.26 |
| Feed efficiency 5 | 0.76 a | 0.79 a | 0.71 b | 0.03 | <0.01 | <0.01 | <0.01 |
| Body measures (cm) | |||||||
| Heart girth | 86.94 | 86.16 | 86.23 | 1.33 | 0.21 | <0.01 | <0.01 |
| Withers height | 84.41 | 84.15 | 84.28 | 0.79 | 0.74 | <0.01 | 0.73 |
| Hip width | 24.95 | 25.01 | 24.82 | 0.56 | 0.35 | <0.01 | 0.75 |
| Hip height | 87.19 | 87.35 | 87.36 | 0.92 | 0.88 | <0.01 | 0.06 |
1 T = treatment effect; W = week effect; T × W = treatment × week interaction; 2 Total DMI = starter DM + milk DM intakes; 3 Total gross energy = starter GE + milk GE intakes; 4 Total CP = starter CP + milk CP intakes; 5 feed efficiency was calculated by dividing ADG (g) by average daily DMI; 6 Means followed by a lowercase letter represent statistical difference between treatments (p < 0.05; Tukey test).