Economic feasibility of interventions targeted at decreasing piglet perinatal and pre-weaning mortality across European countries

Table 2 Basic assumptions on productivity and additional costs for management and housing interventions tested in the bio-economic model

Intervention name¹	Description of an intervention	Expected effect on mortality reduction (%)		Cost of intervention
Intervention name¹	Description of an intervention	Perinatal mortality	Pre-weaning mortality	Cost of intervention
Housing interventions
(1) Ventilation	Mechanical ventilation in gestation unit	3.8% [16]		Fixed costs up by 1% (own calculations)
(2) Interior	Interior design of gestation unit renewed every 12.5 years	2.6% [16, 18]		Fixed costs up by 5% (own calculations and [38])
Management and housing intervention
(3) Assistance	Drying and placing piglets close to udder, 3 heating lamps per litter	2.4% [18]		Labor input and fixed costs up by 10 and 0.25%, respectively (own calculations and [39])
Management interventions
(4) Enrichment	Oak attached to a chain (3 per pen), straw pellets supplementation	4% [20]		Cost of feed up by 1%, cost of enrichment set at €1.8/sow (own calculations and [40])
(5) Animal-friendly handling	Sows experienced music (06.00–18.00) and backscratching (15 s/sow/d) during farrowing and lactation period		3.3% [19, 21]	Additional 9 min labor per litter [41]

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