Table 2.
Overview of significant differences in predictor variables between production types
| Variable | Category | % (number) of herds |
|||
|---|---|---|---|---|---|
| Dairy | Mixed | Beef | Total | ||
| Remaining with the dam for >24 h after birth | Yes | 7.1a (2/28) | 11.3a (6/53) | 31.7b (13/41) | 17.2 (21/122) |
| Automated milk feeding system | Yes | 28.6a (8/28) | 7.1b (4/56) | 7.3b (3/41) | 12.0 (15/125) |
| Own farm colostrum only | Yes | 93.1a (27/29) | 81.5a (44/54) | 47.4b (18/38) | 73.6 (89/121) |
| Milk type | Cow milk (referent = milk replacer) | 31.0a (9/29) | 69.8b (37/53) | 41.1a (16/38) | 51.7 (62/120) |
| Presence of chronically ill animal in pen or adjacent pen | Yes | 62.1a (18/29) | 41.1a (23/56) | 31.7b (13/41) | 42.9 (54/126) |
| Bedding material | Sawdust (referent = straw) | 17.2a (5/29) | 6.9ab (4/58) | 0b (0/41) | 7.0 (9/128) |
| Shaving calves in winter | Yes | 28.6a (8/28) | 30.9a (17/55) | 73.2b (30/41) | 44.4 (55/124) |
| Vaccination against bRSV/PI-31 | Yes | 57.1a (16/28) | 47.4a (27/57) | 85.4b (35/41) | 61.9 (78/126) |
| Vaccination against Mannheimia haemolytica | Yes | 32.1a (9/28) | 33.3a (19/57) | 68.3b (28/41) | 44.4 (56/126) |
a,b
Percentages within a row with different superscripts are statistically different at P < 0.05.
1
bRSV = bovine respiratory syncytial virus; PI-3 = parainfluenzavirus type 3.