Table 1 Variables available in broiler datasets.
Variable name | Additional Information | Intended use |
|---|---|---|
Abattoir ID | Identifier of abattoir | Grouping variable |
Farm CPH number | Identifier of farm | Grouping variable |
Farm house ID | Identifier of farm house | Grouping variable |
Region | Derived from postcode of farm7 | Grouping variable |
Datea | Date of inspection at slaughterhousex | Predictor |
Number of animals | Number of animals in batch sent to slaughterx | Predictor |
Number in houseb | Number of animals in house on the farmx | Predictor |
Production systemc | Pre-categorised+: (intensive indoor; extensive indoor, free-range, organic)y | Predictor |
Stocking density | Density of animals in kg/m2 (pre-categorised+: < 33 kg/m2, 33–39 kg/m2, > 39 kg/m2)z | Predictor |
Breed | Breed of animals (pre-categorised+: Cobb, Hubbard, Hybro, Ross) y | Predictor |
Age | Age of birds in daysx | Predictor |
Mortality in house | Cumulative daily mortality rate in housex | Predictor |
FPD Swedish score | Swedish score of footpad dermatitis8 | Outcome |
Abnormal colour feveredb | Count and percentage | Outcome |
Antemortem rejectsb | Count and percentage | Outcome |
Ascites and oedema | Count and percentage | Outcome |
Bruising and fracturesb | Count and percentage | Outcome |
Cellulitisb | Count and percentage | Outcome |
Dermatitis and cellulitisd | Count and percentage | Outcome |
Dermititisb | Count and percentage | Outcome |
Dead on arrival | Count and percentage | Outcome |
Emaciation | Count and percentage | Outcome |
Hepatitisb | Count and percentage | Outcome |
Joint Lesions | Count and percentage | Outcome |
Jaundiceb | Count and percentage | Outcome |
Pericarditisb | Count and percentage | Outcome |
Perihepatitis and peritonitisb | Count and percentage | Outcome |
Respiratory diseased | Count and percentage | Outcome |
Salpingitisb | Count and percentage | Outcome |
Total rejectionsd | Count and percentage | Outcome |
Tumours and nodulesb | Count and percentage | Outcome |
