The effect of grain polyphenols and the additionof vitamin E to diets enriched with α-linolenic acid on the antioxidant status of pigs
Journal Title: Journal of Animal and Feed Sciences - Year 2010, Vol 19, Issue 4
Abstract
The aim of this study was to determine the antioxidant status and blood lipid profile of pigs fed diets enriched with α-linolenic acid (ALA) and containing two sets of antioxidants: phenolic compounds of diet components (barley, triticale, naked oat and buckwheat by-products) only, or phenolic compounds and vitamin E supplementation. A three-factorial experiment was performed on growing-finishing barrows (6-7 pigs per group) fed individually diets supplemented with 3% linseed oil, formulated as isoenergetic, isofibre and isofat. The influence of the type of diet (barleytriticale-based control diets vs 40%-oat-based diets), the share of buckwheat by-products (0 vs 10/12% of grower/finisher diets), and vitamin E supplementation (0 vs 100 IU⋅kg-1) was evaluated. The analysed feed materials could be classified according to their total phenolic compound (TPC) content and in vitro antioxidant capacity (TAC) in the following decreasing order: buckwheat hulls and bran >> barley >> naked oat ≈ triticale. Diets with higher levels of TPC and TAC, i.e. barleytriticale-based control diets and diets containing buckwheat by-products, increased erythrocyte superoxide dismutase and glutathione peroxidase activity, similarly as 100 IU⋅kg-1 vitamin E supplementation, thus suggesting an improvement in the antioxidant status of pigs. Only vitamin E supplementation significantly (over four-fold) increased vitamin E concentrations in the blood serum and M. longissimus dorsi (LD) of pigs, and decreased the rate of lipid oxidation in LD. The obtained results suggest that the phenolics present in cereal grains and in buckwheat, occurring as natural antioxidants in ALA-rich and vitamin E-deficient diets, are not sufficient to maintain the oxidative stability of pork. Diets containing 40% oat significantly improved the HDL/TCH and HDL/LDL ratios in serum.
Authors and Affiliations
M. Flis, W. Sobotka, Z. Antoszkiewicz, K. Lipiński
Keywords
Related Articles
- EP ID EP73830
- DOI -
- Views 94
- Downloads 0
Factors affecting the nutritional value of pea (Pisum sativum) for broilers
In a trial carried out on broiler chickens, the nutritive value of five pea cultivars (coloured-flowered: Turnia, Sokolik, Milwa, and white-flowered Muza and Cysterski) was determined. A total of 60 male Ross 308 17-dayo...
Effects of direct-fed microbials and their combinations with yeast culture on in vitro rumen fermentation characteristics
This study was conducted to determine the effects of Bacillus licheniformis (Bl) and Clostridium butyricum (Cb) and their combinations with yeast culture on in vitro rumen fermentation in a twoway factorial design. Treat...
The comparison of propylene glycol and glycerol as feed additives in early lactation of high producing dairy cows
The aim of this study was to compare the antiketogenic effect of glycerol and propylene glycol after parturition. Two experiments were carried out on 36 Holstein cows. In each experiment there were 18 dairy cows receivin...
The effect of live yeast, Saccharomyces cerevisiae, and their metabolites on ciliate fauna, fibrolytic and amylolytic activity, carbohydrate digestion and fermentation in the rumen of goats
The influence of live Saccharomyces cerevisiae cells and their metabolites on the number of ciliates and some fibrolytic and amylolytic enzymes, together with the effect on the concentration of volatile fatty acids (VFA)...
Effect of diets with different contents of sunflower meal without or with exogenous enzymes supplementation on gastrointestinal tract response of growing turkeys
The present experiment was conducted to investigate the effect of a different dietary content of sunflower meal (SFM) and the efficiency of an non-starch polysaccharide (NSP)-degrading enzyme preparation on growth and gu...