Table 2 Mean numbers of active piglets massaging the udder of sows suffering from postpartum dysgalactia (PDS+) and healthy sows (PDS−) after parturition. There are missing values for 5 sows during the 6 h period after medical treatment
From: Postpartum dysgalactia syndrome in sows: effects on behavior of sows and piglets
Groups | Active piglets massaging the udder; ‘Nursing’ | |||||||
|---|---|---|---|---|---|---|---|---|
The 6 h preceeding medical treatment of PDS+ sows | The 6 h starting from 24 h after medical treatment of PDS+ sows | |||||||
n | Mean (Obs.) | Standard deviation | p-value | n | Mean (Obs.) | Standard deviation | p-value | |
PDS+ | 32 | 6.3 | 0.5 | 27 | 5.9 | 0.7 | ||
PDS− | 33 | 6.0 | 0.9 | 0.86 | 33 | 5.6 | 0.8 | 0.12 |