Table 5. Effects of dietary selenium sources and levels on selenium concentrations of finishing pigs¹⁾

Item²⁾	Dietary treatments					SEM	p-value
Item²⁾	CON	ISe3	ISe5	OSe3	OSe5	SEM	Diet	Source	Level	Source × Level
Liver (ppm)	0.240	0.384	0.579	0.275	0.650	0.016	< 0.001	0.079	< 0.001	0.030
Kidney (ppm)	1.050	1.893	2.016	2.090	2.373	0.036	< 0.001	< 0.001	< 0.001	0.043
Pork loin (ppm)	0.070	0.123	0.129	0.131	0.162	0.007	< 0.001	0.013	0.020	0.107
Serum (ppm)	0.062	0.154	0.170	0.151	0.165	0.007	< 0.001	0.624	0.052	0.888

Each value is the mean of 4 replicates (1 pig/pen).
CON, a non-selenium-fortified diet based on corn and soybean meal; ISe3, CON + 0.3 ppm inorganic selenium; ISe5, CON + 0.5 ppm inorganic selenium; OSe3, CON + 0.3 organic selenium; OSe5, CON + 0.5 ppm organic selenium; Diet, all dietary treatments; Source, inorganic or organic; Level, 0.3 or 0.5 ppm.