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. 2019 Dec 11;93(6):1301–1317. doi: 10.3382/ps.2013-03614

Table 8.

Relative effect of various diseases on production costs per delivered broiler (%)

Production system
Disease1 Conventional Volwaard Better Life 1*/Puur & Eerlijk Better Life 2* Better Life 3*/Skal Organic
Baseline situation 0.00 0.00 0.00 0.00 0.00 0.00
Respiratory
 IB 0.48 0.39 0.37 0.38 0.16 0.19
Immune organs
 IBD 0.48 0.39 0.37 0.77 0.33 0.38
Gastrointestinal
 Coccidiosis 1.24 1.70 1.68 1.48 4.03 4.38
 Escherichia coli 6.86 2.89 2.80 3.28 3.54 4.37
 NE 3.39 3.25 3.22 3.18 2.42 2.61
Locomotion
 Leg problems 1.19 0.35 0.33 0.31 0.00 0.00
Heart and vascular
 Ascites 0.61 0.10 0.09 0.11 0.00 0.00
 SDS 0.19 0.02 0.02 0.04 0.00 0.00
1

IB = infectious bronchitis; IBD = infectious bursal disease; NE = necrotic enteritis; SDS = sudden death syndrome.