Table 8.
Body frame measurements by calves fed a CS without or with MON, or EOC, or a combination of both MON and EOC (MON ×EOC)
| Treatment1 | Main effects & interaction, P-value < 2 | |||||||
|---|---|---|---|---|---|---|---|---|
| Measurement | CS | MON | EOC | MON + EOC | SEM | MON | EOC | MON × EOC |
| N | 20 | 20 | 20 | 20 | — | — | — | — |
| Body length, cm | ||||||||
| Day 0 | 78.3 | 79.0 | 79.6 | 80.0 | 0.63 | |||
| Day 14 | 80.7 | 80.8 | 81.6 | 82.2 | 0.63 | |||
| Day 28 | 82.9 | 82.8 | 83.8 | 84.5 | 0.63 | |||
| Day 42 | 85.4 | 85.2 | 86.3 | 87.1 | 0.63 | |||
| Day 56 | 88.2 | 87.7 | 89.3 | 90.2 | 0.63 | |||
| Day 70 | 92.1 | 90.6 | 92.6 | 93.7 | 0.63 | |||
| Average, 0 to 70 d | 85.8 | 85.6 | 86.4 | 86.7 | 0.54 | 0.99 | 0.06 | 0.48 |
| Gain 0 to 70 d | 6.7 | 6.36 | 7.09 | 7.35 | 0.57 | 0.92 | 0.22 | 0.57 |
| Wither height, cm | ||||||||
| Day 0 | 79.1 | 79.3 | 80.3 | 80.5 | 0.74 | |||
| Day 14 | 81.7 | 81.4 | 82.2 | 82.5 | 0.74 | |||
| Day 28 | 84.2 | 83.6 | 84.6 | 84.8 | 0.74 | |||
| Day 42 | 86.8 | 86.0 | 87.1 | 87.5 | 0.74 | |||
| Day 56 | 89.1 | 88.5 | 89.9 | 90.6 | 0.74 | |||
| Day 70 | 92.4 | 91.5 | 93.1 | 94.2 | 0.74 | |||
| Average, 0 to 70 d | 86.4 | 86.2 | 86.7 | 87.3 | 0.66 | 0.68 | 0.10 | 0.34 |
| Gain 0 to 70 d | 6.73 | 6.48 | 6.91 | 7.48 | 0.58 | 0.78 | 0.28 | 0.44 |
| Heart girth, cm | ||||||||
| Day 0 | 78.7 | 78.8 | 79.5 | 79.0 | 0.71 | |||
| Day 14 | 80.8 | 81.2 | 81.7 | 81.7 | 0.71 | |||
| Day 28 | 83.0 | 83.3 | 83.9 | 83.9 | 0.71 | |||
| Day 42 | 85.2 | 85.7 | 86.5 | 86.6 | 0.71 | |||
| Day 56 | 87.8 | 88.5 | 89.3 | 89.6 | 0.71 | |||
| Day 70 | 90.6 | 91.5 | 92.5 | 93.1 | 0.71 | |||
| Average, 0 to 70 d | 85.1 | 85.7 | 85.9 | 86.4 | 0.60 | 0.27 | 0.12 | 0.96 |
| Gain 0 to 70 d | 6.13 | 6.21 | 6.93 | 7.47 | 0.59 | 0.30 | 0.15 | 0.98 |
| Abdominal girth, cm | ||||||||
| Day 0 | 78.1 | 77.7 | 78.9 | 78.1 | 0.84 | |||
| Day 14 | 80.2 | 79.9 | 81.1 | 81.0 | 0.84 | |||
| Day 28 | 82.4 | 82.3 | 83.8 | 84.1 | 0.84 | |||
| Day 42 | 84.8 | 84.9 | 86.6 | 87.3 | 0.84 | |||
| Day 56 | 87.5 | 88.0 | 89.5 | 90.9 | 0.84 | |||
| Day 70 | 90.4 | 92.0 | 92.8 | 94.9 | 0.84 | |||
| Average, 0 to 70 d | 84.6 | 85.3 | 85.6 | 87.1 | 0.74 | 0.07 | 0.02 | 0.49 |
| Gain 0 to 70 d | 6.43 | 7.15 | 7.33 | 8.91 | 0.55 | 0.05 | 0.03 | 0.47 |
| Cannon bone, cm | ||||||||
| Day 0 | 9.40 | 9.55 | 9.72 | 9.95 | 0.16 | |||
| Day 14 | 9.85 | 10.1 | 10.2 | 10.5 | 0.16 | |||
| Day 28 | 10.6 | 10.8 | 10.9 | 11.1 | 0.16 | |||
| Day 42 | 11.4 | 11.5 | 11.8 | 11.9 | 0.16 | |||
| Day 56 | 12.2 | 12.3 | 12.6 | 12.7 | 0.16 | |||
| Day 70 | 13.0 | 13.1 | 13.5 | 13.6 | 0.16 | |||
| Average, 0 to 70 d | 11.3 | 11.3 | 11.4 | 11.3 | 0.13 | 0.92 | 0.53 | 0.91 |
| Gain 0 to 70 d | 1.68 | 1.67 | 1.70 | 1.62 | 0.14 | 0.67 | 1.00 | 0.85 |
1CS, calf starter; MON, CS containing monensin; EOC, CS containing essential oil and cobalt; MON+EOC, CS containing monensin, essential oils and cobalt.
2 P-value for main effects of MON or EOC and interaction.