Table 1 Descriptive statistics of the collected parameters in the peripartum period of the four different treatment groups containing three animals. No significant differences among the groups could be detected

 Body weight (kg)

267.3 ± 27.7

250.3 ± 67.2

242.3 ± 55.3

260 ± 3 4.5

0.6456

 Back fat (mm)

10.9 ± 3.3

13.1 ± 6.9

11.9 ± 1.3

9.7 ± 2.4

0.9933

 Litter number (n)

4.6 ± 2.5

4.6 ± 3.5

4.3 ± 2.3

4.6 ± 2.8

0.7216

 Litter weight (kg)

20.9 ± 1.6

21.1 ± 6.1

18.3 ± 1.6

28.5 ± 2.3

0.1141

 Number of total born piglets (n)

16.7 ± 3.8

17 ± 4.4

14.3 ± 2.8

20.3 ± 0.6

–

 Number of still born piglets Typ2 (%)

0

7.9 ± 2.8

0

8 ± 9.8

0.9015

 Farrowing duration (min)

296 ± 166.7

252.7 ± 137.6

139.7 ± 2.1

195.7 ± 109.9

0.2353

 Total duration of parturition (min)

553.7 ± 114.2

456 ± 167.9

284.7 ± 40.5

404.7 ± 256

0.0883

 Piglets interval (min)

18.1 ± 6.1

15.8 ± 6.0

10.8 ± 2.9

10.1 ± 5.2

0.3204

 Piglets interval before treatment (min)

23.5 ± 8.8

11.5 ± 5.1

10.5 ± 4.1

10.7 ± 4.5

0.4685

 Piglets interval after treatment (min)

16.2 ± 8.3

16.8 ± 6.4

10.9 ± 2.4

9.9 ± 5.3

0.1841

 Number of meconium stained piglets Score 0 (%)

73 ± 8.2

31.7 ± 10.7

70.3 ± 19.1

52.3 ± 10.8

0.9701

 Number of meconium stained piglets Score 1 (%)

29.7 ± 1 0.0

54.0 ± 19.3

23.3 ± 21.7

36.0 ± 5.3

0.8071

 Number of meconium stained piglets Score 2 (%)

4.0 ± 3.6

12.3 ± 21.4

6.7 ± 6.5

11.7 ± 7.6

0.7403

 Placenta expulsion duration (min)

364 ± 120

289 ± 144.1

119 ± 46.13

273.3 ± 191.8

0.5979

 Time from last piglet to first placental part (min)

− 112.6 ± 119.1

−85.6 ± 114.0

26 ± 30.5

− 57.3 ± 37.5

0.7835

 Time from last piglet to last placental part (min)

257.7 ± 230.7

203.3 ± 43.7

145 ± 42.0

209.0 ± 147.3

0.2185

Median (Min-Max)

Median (Min-Max)

Median (Min-Max)

Median (Min-Max)

 Number of still born piglets (n)

0 (0–1)

1 (1–3)

0 (0–2)

1 (0–4)

0.9526

 Number of still born piglets Typ 1 (%)

0 (0–2)

0 (0–1.9)

0 (0–4.6)

0 (0–0)

0.9159

 Reanimation of piglets (%)

0 (0–0)

0 (0–5)

0 (0–0)

5 (4.8–10)

0.9788

 Umbilical cord lesions (%)

0 (0–0)

0 (0–10.5)

0 (0–18.8)

5 (0–23.8)

0.9132

 Expelled placental parts (n)

5 (2–7)

6 (6–7)

5 (4–5)

8 (7–12)

0.7722