Table 6. The effect of dietary supplementation of marine-derived Ca-Mg complex on saliva stress hormones in sows through four parities

Items (ng/mL)	Parity 1			Parity 2			Parity 3			Parity 4			SEM	p-value
Items (ng/mL)	CON¹⁾	0.3LC	0.7LC	CON	0.3LC	0.7LC	CON	0.3LC	0.7LC	CON	0.3LC	0.7LC	SEM	Parity	Trt	P × T
Before farrowing
Cortisol	1.00	0.82	0.84	1.11	0.95	0.91	0.97	0.96	1.08	0.82	0.83	1.07	0.119	NS	NS	NS
Epinephrine	0.86^A	0.84	0.82	0.92^A	0.9	0.87	0.59^B	0.67	0.58	0.57^B	0.69	0.57	0.066	***	NS	NS
Norepinephrine	0.96^ABa	0.72^b	0.67^b	1.11^Aa	0.92^b	0.76^b	0.92^ABa	0.73^b	0.71^b	0.90^Ba	0.73^b	0.69^b	0.063	**	***	NS
After farrowing
Cortisol	1.27^Ba	0.83^b	0.88^b	1.8^Aa	1.37^b	1.32^b	1.69^Aa	1.27^b	1.3^b	1.29^Ba	0.87^b	0.83^b	0.098	***	***	NS
Epinephrine	0.86^Ba	0.65^b	0.56^b	1.12^A	0.87	0.71	0.88^Ba	0.61^b	0.56^b	0.94^ABa	0.63^b	0.58^b	0.068	***	***	NS
Norepinephrine	0.80^AB	0.79	0.67	0.98^A	1.0	0.89	0.68^B	0.72	0.61	0.68^B	0.75	0.6	0.069	***	*	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.
p Different superscripts within a row indicate a significant difference (p < 0.05) in response to treatment diets CON vs. 0.3LC and 0.7LC.
pDifferent superscripts within a row indicate a significant difference (p < 0.05) among parity.
p < 0.05,
p < 0.01,
p <.001.
P × T, interactive effects between parity and dietary treatments; NS, non-significant.