Table 1 Association of birth orders with piglet traits

Farrowing duration, min

354.6 ± 26.00^a

355.13 ± 27.09^a

368.77 ± 36.50^a

456 ± 107^a

Birth interval, min

29.66 ± 7.32^a

17.72 ± 3.69^a

14.23 ± 2.84^a

73.43 ± 30.62^b

Mean vitality score

1.42 ± 0.07^a

1.44 ± .07 ^b

1.26 ± 0.07^a

1.14 ± 0.14^a

BW0h, kg

1.53 ± 0.04^a

1.51 ± 0.05^a

1.50 ± 0.04^a

1.46 ± 0.13 ^a

Umbilical cord blood glucose, mmol/L

4.01 ± 0.12^a

3.75 ± 0.12^a

3.59 ± 0.16^a

4.07 ± 0.35^a

Umbilical cord blood lactate, mmol/L

4.01 ± 0.31^a

3.76 ± 0.13^a

3.59 ± 0.18^a

6.28 ± 1.37^b

Umbilical cord blood butyrate, mmol/L

0.32 ± 0.05^a

0.39 ± .05^a

0.34 ± .06^a

0.25 ± 0.15^a

CI, g

455.72 ± 23.94^b

437.86 ± 21.0^a

392.73 ± 29.48^a

338.95 ± 37.12^a

BW weaning, kg

9.25 ± 0.35^a

8.38 ± 0.280^a

8.65 ± .32^a

9.07 ± 0.56^a

ADG weaning, g

330.31 ± 12.61^a

299.26 ± 10.03^a

308.90 ± 11.33^a

324.17 ± 20.14^a

Pre-weaning mortality, n

4^a

4^a

4^a

1^a