Addition of tert-butylhydroquinone (TBHQ) to maize oil reduces lipid oxidation but does not prevent reductions in serum vitamin E in nursery pigs

Table 7 Serum and tissue parameters of nursery pigs fed maize oil and TBHQ

Maize oil	Unoxidized		Oxidized		SEM	P-values
Antioxidant^a	–	+	–	+		OX^b	AX^c	OX × AX^d
Liver
Weight, g	583	605	633	621	33	0.32	0.88	0.60
HSI^e	2.96	3.08	3.17	3.20	0.09	0.08	0.42	0.65
Se, μg/g dry weight	2.55	2.45	2.53	2.56	0.06	0.44	0.61	0.31
Vitamin E, μg/g dry weight^f.	29.12	26.61	26.12	24.88	2.66	0.38	0.48	0.81
Serum
Se, ng/mL	173	163	164	164	6	0.40	0.32	0.39
Vitamin E, μg/mL	0.43	0.54	0.38	0.38	0.05	0.03	0.23	0.26

^aRendox® CQ, (active ingredient is TBHQ; Kemin Industries, Des Moines, IA) was added at 1000 mg/kg of lipid
^bOX = oxidation
^cAX = antioxidant
^dOX × AX = interaction effect between oxidation and antioxidant
^eHSI = hepatosomatic index = liver weight as % of BW
^fVitamin E was measured in α-tocopherol equivalents

ISSN: 2049-1891