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Table 1 Approximate numbers of different kinds of pig herds, total number of sows and annual number of pigs slaughtered in Nordic countries in 1998.

From: Disease Surveillance Strategies in Swine

  Denmark Sweden Finland Norway Iceland
Nucleus herds 60 40 150 110b -
Multiplying herds 230 150 20 85 -
Conventional herds      
- farrowing 2.800 5.100 2.300 500 -
- farrowing-to-finishing 5.500 760 1.400 3.400 54
- finishing 10.000 5.800 1.800 2.000 -
- sow pool systems - 30 8 1 -
Total no. of sows (thousands) 1.000 274 185a 65 4
Annual no. of pigs      
Slaughtered (mill.) 21 3.9 2.2 1.3 0.065
  1. a Gilts older than 200 days of age included
  2. b Aspirant herds included