Table 5.
Performance of non-castrated, band and knife castrated with or without a single application of s.c. meloxicam in Angus crossbred calves castrated at 1 wk of age from d 7 post-castration until the end of the study (d 56)
| Treatment1 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CT | BA | KN | P-value2 | |||||||
| Item | NM | M | NM | M | NM | M | SEM | CAS | MED | CAS × MED |
| Initial BW, kg | 48.4 | 46.7 | 47.7 | 47.9 | 49.2 | 48.3 | 2.18 | 0.80 | 0.60 | 0.90 |
| Final BW, kg | 112.9 | 109.6 | 109.5 | 113.5 | 111.7 | 111.9 | 3.44 | 0.98 | 0.86 | 0.53 |
| ADG d 56, kg/d | 1.16 | 1.10 | 1.09 | 1.17 | 1.14 | 1.14 | 0.061 | 0.98 | 0.87 | 0.53 |
1CT = non-castrated but handled as castrated; BA = calves castrated with rubber rings; KN = calves castrated with a Newberry knife; NM = single s.c. injection of lactated ringer’s at castration time; M = single injection of s.c. meloxicam (0.5 mg/kg) at castration time.
2CAS = castration effect; MED = medication effect.