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Table 2 Litter characteristics at parturition from sows in the 6 groups

From: Vaccination of sows against type 2 Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) before artificial insemination protects against type 2 PRRSV challenge but does not protect against type 1 PRRSV challenge in late gestation

Group ( n)a Gestation Litter characteristics
  n Average lengthb(cm) Length rangeb(cm)
1 (5) 106-109 Live-born 3 29.4 29.0-30.1
   Stillborn 45 28.8 28.1-29.6
   Mummified 1 14.1 13.4-16.3
2 (5) Term Live-born 49 30.5 30.1-32.4
   Stillborn 2 29.2 29.0-29.4
   Mummified - - -
3 (5) 102-107 Live-born 5 28.9 28.6-29.4
   Stillborn 42 27.9 27.1-28.5
   Mummified - - -
4 (5) 103-108 Live-born 7 27.9 27.6-29.1
   Stillborn 41 27.3 27.1-27.7
   Mummified - - -
5 (3) Term Live-born 26 31.3 30.8-32.1
   Stillborn 1 29.5 29.5
   Mummified - - -
6 (3) Term Live-born 29 31.6 30.3-32.1
   Stillborn - - -
   Mummified - - -
  1. an, number of sows in group.
  2. bEstimation of fetal death based on crown-to-rump length.