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Table 4 Meat inspection findings of the batch slaughtered after the herd visit in 46 study herds

From: Herd-level risk factors for chronic pleurisy in finishing pigs: a case-control study

Variable n Mean SD Median Min Max
No. of slaughter pigs 46    286.5 58 1530
Mean carcass weight 29 87.0 7.9 87.7 62 106
Condemnations (kg/pig)*
 All herds 27 0.4 0.34 0.3 0.03 1.4
 Control herds 15 0.3 0.34 0.2 0.03 1.4
 Case herds 12 0.5 0.33 0.3 0.8 1.4
Lean meat (%) 29 60.1 0.9 60.2 57.2 62.1
Whole carcass condemnations (%)*
 All herds 46 0.2 0.3 0.1 0 1.0
 Control herds 25 0.1 0.3 0 0 1.0
 Case herds 21 0.3 0.3 0.3 0 1.0
Partial carcass condemnations (%)*
 All herds 46 5.8 1.2 16.2
 Control herds 25 5.0 1.2 16.2
 Case herds 21 7.4 2.2 13.9
Organ condemnations (%) 44 1.1 0 10.5
Pneumonia (%) 46 1.3 0 6.2
Pleurisy (%)*
 All herds 46 5.8 0 60.9
 Control herds   1.9 0 34.5
 Case herds   42.4 2.9 60.9
Milk spots in liver (%) 46 1.7 0 56.8
Arthritis (%) 46 2.7 0 10
Abscesses (%)*
 All herds 46 3.1 0.9 12.7
 Control herds 25 2.7 0.9 11.2
 Case herds 21 4.9 1.4 12.7
Tail biting (%)*
 All herds 46 0 0 3.6
 Control herds 25 0 0 1.7
 Case herds 21 0.6 0 3.6
  1. Variables that have a significant association with the main outcome variable (pleurisy) are reported separately for control and case herds
  2. Mean and standard deviation are reported for normally distributed variables and median, minimum and maximum values for the others
  3. * Variables that have a significant association with the main outcome variable (pleurisy) in univariate logistic regression (p ≤ 0.05)