The effect of dietary fatty acid composition on adipose tissue quality and expression of genes related to lipid metabolism in porcine livers

•Dietary saturated fats (coconut oil, beef tallow) were used in pigs fed corn DDGS.•Corn DDGS negatively affected adipose tissue quality and oxidative stability.•Dietary saturated fats improved the hardness and shelf life of subcutaneous fat.•Dietary saturated fats increased expression of ACSL5, APO...

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Bibliographic Details
Published in:Animal feed science and technology 2016-06, Vol.216, p.204-215
Main Authors: Świątkiewicz, M., Oczkowicz, M., Ropka-Molik, K., Hanczakowska, E.
Format: Article
Language:English
Subjects:
Beef tallow
Coconut oil
Corn DDGS
Gene expression
Pig
Subcutaneous adipose tissue
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Summary:•Dietary saturated fats (coconut oil, beef tallow) were used in pigs fed corn DDGS.•Corn DDGS negatively affected adipose tissue quality and oxidative stability.•Dietary saturated fats improved the hardness and shelf life of subcutaneous fat.•Dietary saturated fats increased expression of ACSL5, APOA4, GSTO1, CYP2B22, CYP2C49.•The expression levels of genes were correlated with fatty acids content in the diet. This study investigated different fatty acid profiles in dietary fat sources for pigs fed with corn DDGS (CDDGS) and determined their effect on adipose tissue quality and the expression of metabolism-related genes in the liver. The experiment was carried out on 32 fatteners (60–118kg of body weight) divided into four groups. Group I (control): feed mixture with rapeseed oil; Group II: feed mixture with rapeseed oil and CDDGS; Group III: feed mixture with beef tallow and CDDGS; Group IV: feed mixture with coconut oil and CDDGS. The results confirmed the relationship between dietary fatty acid profile and acid content in fat tissue. CDDGS reduced SFA/UFA ratios and increased iodine values (P
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2016.03.020