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

Aly et al.

Aly et al. BMC Veterinary Research 2013 9:168   doi:10.1186/1746-6148-9-168

Open Data