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

Table 3 Number of total born (TB), live born (LB) and stillborn (SB) piglets according to treatment (P = peforelin, E = eCG, C = control) and parity of 212 litters of three herds

	Group	n	Litter numbers (mean ± standard deviation)
	Group	n	TB	LB	SB
Gilts	P	28	13.1 ± 3.4	12.3 ± 2.9	0.7 ± 0.9
	E	17	15.2 ± 2.8	13.5 ± 3.1	1.6 ± 2.7
	C	25	14.2 ± 3.5	13.6 ± 3.4	0.6 ± 1.0
Primiparous	P	30	14.8 ± 3.9	13.6 ± 3.4	1.0 ± 1.8
	E	15	15.7 ± 3.2	14.4 ± 2.9	1.3 ± 1.5
	C	24	14.0 ± 3.0	13.3 ± 3.1	0.5 ± 0.9
Pluriparous	P	20	15.1 ± 3.7	12.4 ± 3.8	2.2^a ± 0.5
	E	27	14.9 ± 4.4	13.7 ± 3.8	0.9^b ± 1.0
	C	26	14.4 ± 4.4	12.9 ± 4.2	1.4^a,b ± 2.3
All parities	P	78	14.3 ± 3.7	12.8 ± 3.3	1.3 ± 1.8
	E	59	15.2 ± 3.7	13.8 ± 3.4	1.2 ± 1.8
	C	75	14.2 ± 3.6	13.2 ± 3.6	0.9 ± 1.6

^{a, b} Within a specific parity group, differences among treatment groups were statistically significant (p ≤ 0.05)

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