Providing supplementary, artificial milk for large litters during lactation: effects on performance and health of sows and piglets: a case study

Table 2 Effects of group and parity class on sows’ condition (Least square means, RSD^a, P-values)

	Treatment		Parity class				P-values
	SG^b	CG^c	A (1/2)	B (3/4)	C (5–9)	RSD	Group	Parity class
Sow live weight, kg
Housing-in	271.7	270.8	245.9^a	269.0^b	299.0^c	14.5	0.728	<.0001
Housing-out	234.0	235.8	208.3^a	232.0^b	264.4^c	18.9	0.492	<.0001
Body condition score^d
Housing-in	3.86	3.84	3.92	3.75	3.88	0.33	0.741	<.0001
Housing-out	2.92	2.89	2.75^a	2.79^b	3.17^c	0.41	0.904	<.0001
Difference in backfat thickness Housing-in to -out, mm
Anterior	3.76	4.71	4.99	4.11	3.60	2.40	0.061	0.196
Middle	2.91	3.26	3.69	2.96	2.62	1.17	0.353	0.136
Posterior	3.00	3.33	3.98^a	3.00^a,b	2.51^b	1.84	0.351	0.037

^aRSD: residual standard deviation
^bSG: supplemented group
^cCG: control group
^dclasses 1.00 (skinny) to 5.00 (fat), 0.25 intervals
*a,b: values within group or parity class with different superscripts differ significantly at P < 0.05 t-test with Bonferroni correction

ISSN: 2055-5660