Fatty acid profile and cholesterol and retinol contents in different locations of Celta pig breed

Abstract

The fatty acid profile (total, neutral and polar lipids) and cholesterol and retinol contents of the intramuscular -Longissimus dorsi (LD) and Psoas major (PM)-, adipose -rump, covering Biceps femoris muscle, ventral and dorsal-, perirenal and hepatic fat of the Celta pig breed (Galicia, northwest Spain) were evaluated. Oleic acid was the most abundant fatty acid, except in the polar lipids of the intramuscular fat, where the most abundant fatty acid was linoleic acid. The fatty acid composition of total and neutral lipids was influenced more by the location than the fatty acids of polar lipids. There were some differences only in minor fatty acids of intramuscular and subcutaneous fat between castrated females and castrated males. The fatty acids of neutral lipids were also more influenced by sex than the fatty acids of polar lipids. The cholesterol and retinol contents showed no significant differences by sex. The LD muscle showed a higher content of intramuscular fat than the PM muscle. The greatest cholesterol values were described in the liver. Subcutaneous locations showed higher cholesterol levels than muscles.

Keywords

• celta pig
• cholesterol
• fatty acids
• location
• retinol
• sex