Table 1.
Comparison of preweaning morbidity, growth and mortality in a randomized trial of the effect of feeding a lacteal-derived colostrum replacer (CR) or pooled maternal colostrum (MC) in calves
|
Treatment group |
P value | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Lacteal-derived CR |
Pooled MC |
||||||||
| Estimate | n |
95% Confidence interval |
Estimate | n |
95% Confidence interval |
||||
| Lower | Upper | Lower | Upper | ||||||
| Number of calves enrolled |
|
295 |
|
|
|
273 |
|
|
|
| Preweaning health events |
|
|
|
|
|
|
|
|
|
| Diarrhea (%) |
15.9 |
47 |
11.8 |
20.1 |
24.5 |
67 |
19.4 |
29.6 |
0.011 |
| Respiratory disease (%) |
21.4 |
63 |
16.7 |
26.0 |
21.2 |
58 |
16.4 |
26.1 |
0.974 |
| Omphalitis (%) |
0.3 |
1 |
0.0 |
1.0 |
0.4 |
1 |
0.0 |
1.1 |
0.956 |
| Treatment with antibiotics (%) |
33.6 |
99 |
28.2 |
38.9 |
43.2 |
118 |
37.3 |
49.1 |
0.018 |
| No health events or treatments (%) |
63.4 |
187 |
57.9 |
68.9 |
54.2 |
148 |
48.3 |
60.1 |
0.026 |
| Preweaning mortality/100 calves, 60-day follow-up period |
2.4 |
7 |
0.6 |
4.1 |
3.3 |
9 |
1.2 |
5.4 |
0.506 |
| Mean birth weight (kg) |
39.1 |
293 |
38.5 |
39.7 |
39.4 |
269 |
38.8 |
40.1 |
0.452 |
| Weaning weight (kg) |
58.9 |
275 |
57.9 |
59.8 |
57.0 |
248 |
56.0 |
57.9 |
0.006 |
| Mean daily weight gain (kg/day) | 0.405 | 274 | 0.388 | 0.422 | 0.355 | 247 | 0.337 | 0.372 | <0.001 |