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Table 4 Mean birth weight ± standard deviation (BW ± SD, in kg) and coefficient of variation (CV) based on the sum of live born and stillborn piglets (LB + SB) and based on LB piglets only, and mortality rate (MR) according to treatment (P = peforelin, E = eCG, C = control) and parity of 3014 piglets (2688 LB) in 212 litters in three herds

From: Effect of a GnRH analogue (peforelin) on the litter performance of gilts and sows

Parity Group n Weight MR (%)
BW_LB + SB BW_LB
Mean ± SD CV Mean ± SD CV
Gilts P 28 1.33a ± 0.37 0.19 1.36a ± 0.34 0.22 9
E 17 1.23b ± 0.31 0.22 1.26b ± 0.30 0.22 13
C 25 1.29a,b ± 0.34 0.21 1.32a,b ± 0.32 0.21 12
Primiparous P 30 1.42 ± 0.41 0.25 1.47 ± 0.39 0.22 12
E 15 1.37 ± 0.36 0.27 1.40 ± 0.35 0.25 13
C 24 1.42 ± 0.40 0.25 1.45 ± 0.37 0.23 12
Pluriparous P 20 1.36 ± 0.43 0.25 1.41 ± 0.40 0.26 15
E 27 1.34 ± 0.39 0.26 1.38 ± 0.36 0.23 16
C 26 1.38 ± 0.48 0.25 1.43 ± 0.46 0.23 12
All parities P 78 1.37a ± 0.40 0.22 1.42a ± 0.38 0.23 12
E 59 1.31b ± 0.36 0.25 1.35b ± 0.35 0.23 14
C 75 1.36a ± 0.41 0.23 1.40a ± 0.39 0.22 12
  1. a, b Within a specific parity group, differences among treatment groups were statistically significant (p ≤ 0.05)