Skip to main content

Table 1 Descriptive statistics of the 497 calves at the time of arrival

From: Field trial to evaluate the effect of an intranasal respiratory vaccine protocol on bovine respiratory disease incidence and growth in a commercial calf rearing unit

 Total ± SD (min.-max.)Vaccinated ± SD (min.-max.)Unvaccinated ± SD (min.-max.)
n497247250
Number of compartments1477
Sex: Male/female467/30231/16236/14
Mean age at arrival/days17 ± 4.9 (10–45)16.7 ± 5.2 (10–45)17.2 ± 4.6 (10–34)
Mean weight at arrival/kg56.6 ± 8.8 (40–92)56.8 ± 9.2 (40–92)56.5 ± 8.4 (40–92)
Mean serum IgG a10.2 ± 5.8 (0.7–33.9)10.5 ± 5.9 (0.7–33.9)9.8 ± 5.6 (0.7–27.7)
Mean serum SAAa123.4 ± 81.1 (9.2–609.6)127.1 ± 81.4 (9.2–436.8)119.6 ± 80.7 (9.4–609.6)
Clinical condition a b2.7 ± 2.0 (0–10)2.7 ± 2.1 (0–10)2.8 ± 2.0 (0–10)
BRD diagnosis a b1557976
Breeds (n):
 Ayrshire19187104
 Holstein1808991
 Finnish cattle211
 Dairy beef crosses1247054
  1. SD standard deviation, SAA Serum amyloid A, BRD Bovine respiratory disease,
  2. a = Observed/measured at the first clinical examination, b = See the text for detailed description
\