Table 6.

The level of malondialdehyde (µM) in liver as affected by the dose of the additive.

Type of Sample	Breed	Mean			Statistical Significance	Standard Deviation
Liver	Polish Merino	ExPM150	28.500 µM	ExPM300	0.000 **	±4.175
				CPM	0.139
		ExPM300	17.250 µM	ExPM150	0.000 **	±4.234
				CPM	0.000 **
		CPM	32.125 µM	ExPM150	0.174	±4.390
				ExPM300	0.000 **
	Wrzosówka	ExW150	20.875 µM	ExW300	0.000 **	±3.563
				CW	0.000 **
		ExW300	12.750 µM	ExW150	0.000 **	±1.832
				CW	0.000 **
		CW	28.875 µM	ExW150	0.000 **	±3.523
				ExW300	0.000 **

The multiple pairwise comparisons test and post hoc Bonferroni procedure showed significant differences between the averages for each pair of groups: * means p ≤ 0.05, ** means p ≤ 0.01. C_PM, C_W—control group, Experimental groups—Ex_PM150, Ex_PM300 and Ex_W150, Ex_W300 (150 or 300 g of chokeberry pomace additive per each kg of the complete compound feed).