Table 4. The effect of dietary supplementation of marine-derived Ca-Mg complex on blood profile of sows and their progeny through four parities

Items	Parity 1			Parity 2			Parity 3			Parity 4			SEM	p-value
	CON1)	0.3LC	0.7LC	CON	0.3LC	0.7LC	CON	CC1	0.7LC	CON	0.3LC	0.7LC		Parity	Trt	P × T
Sow
Calcium (mg/dL)	9.7A	9.9	9.8	9.6AB	9.8	9.8	9.5ABb	9.8a	9.7ab	9.4Bb	9.9a	9.9a	0.090	‡	***	NS
Magnesium (mg/dL)	2.70	2.84	2.81	2.67b	2.85a	2.84a	2.68b	2.84a	2.83a	2.55b	2.78a	2.79a	0.037	*	***	NS
Vitamin D (ng/mL)	64.99	63.24	68.38	61.79	63.13	61.26	63.33	62.22	62.81	62.36	62.64	62.96	1.727	‡	NS	NS
Prolactin (ng/mL)	0.07B	0.06	0.06	0.07B	0.08	0.07	0.06B	0.07	0.07	0.09A	0.08	0.08	0.005	***	NS	NS
Estrogen (pg/mL)	42.2C	44.5	49.2	53.0B	54.5	50.2	60.1A	56.4	61.1	55.1AB	60.6	57.4	2.908	***	NS	NS
Piglets
Calcium (mg/dL)	10.9A	11.4	11.2	10.7AB	11.0	10.9	11.0A	11.3	11.3	10.5Bb	10.9a	11.0a	0.125	***	***	NS
Magnesium (mg/dL)	3.46B	3.69	3.60	3.62A	3.78	3.74	3.68A	3.79	3.79	3.60ABb	3.78a	3.81a	0.060	**	***	NS
Growth hormone (ng/mL)	0.056AB	0.059	0.056	0.060A	0.060	0.060	0.050B	0.060	0.060	0.040C	0.040	0.040	0.004	***	NS	NS

CON, Basal diet; 0.3LC, Basal diet - MgO - 0.3% limestone + 0.40% marine-derived Ca-Mg complex; 0.7LC, basal diet - MgO - 0.7% limestone + 0.40% marine-derived Ca-Mg complex.
Different superscripts within a row indicate a significant difference (p < 0.05) in response to treatment diets CON vs 0.3LC and 0.7LC.
Different superscripts within a row indicate a significant difference (p < 0.05) among parity.
p < 0.1,
p < 0.05,
p < 0.01,
p < 0.001.
P × T, interactive effects between parity and dietary treatments; NS, non-significant.