Table 3.
Growth parameters among steer calves weaned abruptly (A, 237 d age), after 7 d nose flap (N, 237 d age) application, or after a time delay of 49 d (D, 286 d age) from birth until shipment to a finishing facility with standard errors (SEM)
| Parameter | A | N | D | SEM |
|---|---|---|---|---|
| BW* 14 d before weaning A and N, kg | 260.4 | 263.8 | 263.2 | 5.5 |
| BW 7 d before weaning A and N, kg | 266.6 | 268.4 | 262.7 | 5.3 |
| BW at weaning A and N, kg | 275.7 | 278.1 | 273.3 | 4.7 |
| BW 7 d after weaning A and N, kg | 280.1 | 279.8 | 286.4 | 5.0 |
| BW 42 d after weaning A and N, kg | 302.5 | 285.2 | 293.1 | 4.8 |
| BW at shipment to finishing facility, kg | 321.4 | 317.3 | 314.1 | 4.8 |
| ADG*: birth to weaning of A and N, kg/d | 1.01 | 1.02 | 1.00 | 0.02 |
| ADG: 7 d preweaning of A and N, kg/d | 1.33 | 1.13 | 1.71 | 0.59 |
| ADG: 7 d postweaning of A and N, kg/d | 0.61a | 0.31a | 1.86b | 0.26 |
| ADG: 42 d after weaning A and N, kg/d | 0.54b | 0.37a | 0.69c | 0.04 |
a,b,c Values without common superscripts differ (P ≤ 0.05).
* BW: body weight; ADG: average daily gain.