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Table 7 Mixed effects linear regression explaining the average daily weight gain (g/day)

From: Post-weaning diarrhea in pigs weaned without medicinal zinc: risk factors, pathogen dynamics, and association to growth rate

  Coefficient (g/day) p value 95% confidence interval
Ran. effect: Sow/pen at weaning   8.0 e−4   
Constant 94.3 1.1 e−5 52.3 136.3
Producer
  Producer A Baseline    
  Producer B 35.5 0.006 10.3 60.6
Weight at birth (g) 0.052 7.6 e−6 0.029 0.075
Time of weaning
 Weaned at the insertion day Baseline    
 Weaned in the farrowing unit 18.8 0.018 3.2 34.3
Body condition score at insertion
 Normal or above Baseline    
 Below normal 20.6 0.016 3.8 37.4
Days with hollow flanks − 7.3 1.0 e−14 − 9.1 − 5.4
Days suffering from diarrhea
 0 days Baseline    
 1 days 3.7 0.641 − 11.8 19.1
 2 days 26.0 0.001 10.7 41.2
 3 days 28.4 0.004 9.2 47.6
 4–6 days 23.2 0.052 − 0.2 46.7
Pen in the nurserya
 1 (A, 8.1 kg) Baseline    
 2 (A, 6.5 kg) 7.7 0.493 − 14.3 29.7
 3 (A, 4.2 kg) 0.9 0.951 − 26.8 28.5
 4 (A, 5.5 kg) -20.4 0.073 − 42.6 1.9
 5 (B, 4.8 kg) -16.2 0.196 − 40.7 8.3
 6 (B, 6.5 kg) 1.2 0.918 − -21.1 23.5
 7 (B, 6.5 kg) 19.7 0.091 − 3.1 42.6
 8 (B, 8.4 kg) 0.0    
  1. Average daily weight gain was measured for the first 14 days after insertion to the nursery pigs units at two Danish indoor producers. n = 258
  2. aPen number (producer, mean weight at insertion)