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Table 8 Information on study farms, studied animals and straw provisions. Identical Farm number (within farm id) indicates that the farm produced both grower and finisher pigs. C indicates Control treatment and ES Extra Straw treatment [5]

From: Impact of amount of straw on pig and pen hygiene in partly slatted flooring systems

Farm Age category No. pigs produced /year No. of days in experiment No. pigs in experiment No. of pens Pen Size (m2) No. of pigs / pen Area/pig (m2) Mean
straw length (range).cm
Straw ration. g/pen Straw ration. g/pig No. of missing daily obs.
C ES Total Slatted C ES C ES (%)
G1 Growers 18,000 35 286 12 12 4.98 1.19 12 0.41 6.6 (1–40.5) 100 (day 1–15)
200 (day 16–24)
600(day 25–35)
200
500
1000
8.3
16.7
50.0
16.7
41.7
83.3
0
(0)
G2 Growers 7000–7500 34 427 22 17 5.39 1.06 10–11 0.49–0.54 11.9 (7.5–88.5) 47 94 4.3–4.7 8.5–9.4 1
(3)
G4 Growers 7500 43 360 12 12 4.01 1.08 12 (9)a 0.33–0.45 5.3 (1–31) 46 92 3.8–5.1a 7.6–10.2a 2 (5)
F2 Finishers 7000–7500 74 444 21 21 10.49 2.68 11 0.95 11.9 (7.5–88.5) 132 264 12 24 11b (15)
F3 Finishers 2300 70 195 11 9 9.7 1.8 11 0.88 10.4 (1–44) 100 200 9.1 18.2 2 (3)
F4 Finishers 7500 74 209 12 12 9.05 2.25 9 1.00 6.9 (5.5–51.5) 110 220 12.2 24.4 10c (14)
F5 Finishers 10,000 68 408 20 20 10.49 2.68 10 0.95 8.4 (1.5–44.5) 58 115 5.8 11.5 14d (21)
  1. aIn Farm 4 three pigs per pen were removed after 5 weeks to comply with national legislation according to Swedish board of Agriculture regulations and general advice (SJVFS 2017:25) on the holding of pigs in agriculture
  2. b2 weekends and one week
  3. c3 weekends
  4. d7 weekends