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Table 6 Yearly risk of introduction of pig diseases

From: Risk assessment as a tool for improving external biosecurity at farm level

Scenario/Model

Biosecurity measures

Farrow-to-finish herd 484 sows

Specialised fattening herd 1600 pigs

SD

 

%

%

 Baseline

No

11.43 (2.88–31.30)

45.35 (5.66–70.00)

Yes

2.33 (0.20–4.92)

22.18 (2.69–35.75)

 Low-risk

No

8.17 (1.88–25.58)

26.32 (2.98–45.35)

Yes

1.18 % (0.10–2.52)

12.50 (1.37–22.03)

M. hyo

 Baseline

No

100 (98.37–100)

100 (100–100)

 

Yes

53.51 (17.20–85.03)

55.86 (18.34–87.56)

 Low-risk

No

99.99 (98.30–100)

100 (99.99–100)

Yes

54.24 (17.01–86.46)

38.12 (15.09–67.61)

  1. Model outputs for swine dysentery (SD) and Mycoplasma hyopneumoniae (M. hyo) in two example pig herds, as calculated in a stochastic model, based on two scenarios (baseline and low-risk contact patterns, respectively), with and without mitigating biosecurity (quarantine for new animals, protective clothes for visitors, hygiene lock for loading/unloading, isolated deadstock collection area). Median result and 5th to 95th percentiles (in brackets) are given