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Table 1 Descriptive statistics at days 1 (D1) and 12 (D12) of the 209 calves randomly assigned to receive a metaphylactic antimicrobial treatment of tildipirosin (TILD) or placebo (PLAC) at D12

From: A randomised clinical trial of a metaphylactic treatment with tildipirosin for bovine respiratory disease in veal calves

 

PLAC (n = 100)

TILD (n = 109)

Nominal variables*

Number

Proportion (%)

Number

Proportion (%)

Male

91

91

103

95

Holstein breed

89

89

99

93

RS ≥ 5a

    

D1

1

1

0

0

D12

3

3

5

5

DEPTH ≥ 3 cmb

    

D1

1

1

2

2

D12**

8

8

18

17

Failure of passive transferc

55

55

59

54

Continuous variables*

Mean

(range)

SD

Mean

(range)

SD

Serum total solids (g/L)

54.3

(38–83)

7.9

53.3

(41–80)

7.9

Weight at arrival (kg)

47.6

(34.5–63.5)

5.9

46.7

(33.1–65.3)

6.8

  1. aCalf respiratory score assessing rectal temperature, cough, nasal and ocular discharge as well as ear drop. Calf is considered clinically sick when score ≥ 5
  2. bUltrasonographic assessment of lung consolidation maximal depth using thoracic ultrasonography. Calf is considered sick by ultrasonography when depth ≥ 3
  3. cSerum total solids less than 52 g/l
  4. *Used of Fisher’s test or chi-squared test for the nominal variables and t-test for the continuous variables
  5. **P = 0.06; no significant difference observed for all data