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Table 1 Management and housing requirements of Finnish finishing pig units classified as LSO 2000 units. A single deviation of < 10% from a single measurement was allowed.

From: Diagnoses and Treatments in Health-Classified Fattening Herds Rearing Pigs All In – All Out

Variable

Requirement

Variable

Requirement

General

Pens

Number of pigs per compartmenta

≤ 400 (300)

Total pen area per pig

≥ 0.9 m2

Hospital pens for sick pigs

5 places per 100 pigs

Solid floor per pig

≥ 0.6 m2

Bedding provided

Yes

The slot width in the slatted floor

18–23 mm

Loading of the slaughter pigs

No electrical prod allowed

Fence between the pens

No electrical fence allowed

Contract with the local veterinarian

Yes

  

Adequate biosecurity measuresb

Yes

Air quality

Housing and management

Examination every 18 months

Airflow at the height of the pigs

≤ 0.2 meters per second

  

Ammonia

≤ 10 ppm

Feeding

CO2

≤ 3000 ppm

Feeding only approved feedstuffsc

Yes

H2S

≤ 0.3 ppm

Trough space, no floor feeding

≥ 32 cm/pig

Humidity

50–80%

  

Extra heat provided

Yes

Water

Effective environmental temp.d

12–22°C

Free access to water from a nipple

Yes, 1.0–1.5 litres/minute

  

Location of the water nipples

Manure area

Light

Water quality examined

Every three years

Light intensity

≥ 100 lux

  

Use of lights

10–16 hours/day

  1. a Compartment is a room housing pigs. Several compartments can be situated on a compound, but in that case a maximum of 300 pigs per compartment is allowed.
  2. b Proper loading conditions of slaughter pigs and protective clothing and boots for visitors used.
  3. c Approved by the quality officer of the slaughterhouse: Diet based on Finnish grain (>70%), no antimicrobial feed additives, salmonella control and the use of substances causing bad taste (e.g. fish products), technical problems (e.g. some plant oils), ethical problems (e.g. blood), safety risks (e.g. waste food) denied or restricted.
  4. d Effective environmental temperature = Temperature measured + floor effect (-4°C concrete, -5.5°C steel, +0°C wood, +0.5°C plastic) + effect of bedding (+0 – +5°C) – airflow × 15.