Table 5.
Response to vaccination and acute phase response of Nellore calves receiving saline solution (Saline; n = 14) or bovine-appeasing substance (BAS; n = 14) at weaning.
| Items 1 | Treatments | SEM | p-Value | ||
|---|---|---|---|---|---|
| Saline | BAS | Treatment | Treatment × Day | ||
| Response to vaccination | |||||
| IBR | |||||
| Titers, log2 | 2.94 | 3.06 | 0.53 | 0.85 | 0.66 |
| Seroconversion, % total | 91.7 | 100 | 5.87 | 0.33 | 0.33 |
| PI3 | |||||
| Titers, log2 | 0.03 | 0.05 | |||
| d 0 | 0.00 | 0.00 | 0.53 | ||
| d 15 | 3.21 b | 5.49 a | 0.53 | ||
| d 51 | 4.82 b | 6.15 a | 0.53 | ||
| Seroconversion, % total | 0.12 | 0.10 | |||
| d 0 | 0.00 | 0.00 | 0.09 | ||
| d 15 | 66.7 b | 100 a | 0.09 | ||
| d 51 | 100 | 100 | 0.09 | ||
| BVDV-1 | |||||
| Titers, log2 | 0.10 | 0.02 | |||
| d 0 | 0.26 | 0.40 | 0.61 | ||
| d 15 | 0.26 | 0.57 | 0.61 | ||
| d 51 | 4.26 b | 6.40 a | 0.61 | ||
| Seroconversion, % total | 66.7 | 100 | 12.0 | 0.09 | 0.69 |
| BVDV-2 | |||||
| Titers, log2 | 1.06 | 1.28 | 0.42 | 0.72 | 0.87 |
| Seroconversion, % total | 66.7 | 66.7 | 12.2 | 1.00 | 1.00 |
| Acute phase response | |||||
| Haptoglobin, mg/mL | 0.41 | 0.43 | 0.02 | 0.46 | 0.40 |
| Ceruloplasmin, mg/mL | 15.7 | 14.8 | 0.64 | 0.36 | 0.41 |
1 On d 0, calves were vaccinated against infectious bovine rhinotracheitis, bovine viral diarrhea virus type 1 and 2 (BVDV-1 and 2), parainfluenza-3 (PI3) virus, bovine respiratory syncytial virus, and Mannheimia haemolytica (2 mL s.c.; Bovi Shield Gold One Shot, Zoetis). a,b Within a row, without a common superscript, differ (p ≤ 0.05) or tend to differ (p ≤ 0.10).