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Table 1 Performance characteristics of the sows on farm of the last 9 months (January- September 2019) and corresponding reference values

From: A case report: Actinobaculum suis infection associated with formation of pyogranuloma, epididymitis and azoospermia in a boar

Performance characteristics Status quoOctober 2019 Referencevalues [14]
Piglets born alive/ litter 13.8 12–14.0
Piglets born dead/ litter 1.8 ≤ 0.5
Piglets weaned/ litter 11.1 11.0
Litter/ sow/ year 2.1 2.1a
Return to oestrus rate (%) 35.3 ≤ 12.0
Regular return (%)b 28.7  
Irregular return (%)c 6.6  
  1. a calculated with 115 days pregnancy, suckling period of 56 days and 4 days return to oestrus
  2. b Sows returning to oestrus 18–24 and 36–48 days after insemination
  3. c All other sows returning to oestrus without regular return