ORIGINAL PAPER
Effect of fat content in primal cuts of pigs fed diet enriched in n-3 polyunsaturated fatty acids on health-promoting properties of pork
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The Kielanowski Institute of Animal Physiology and Nutrition Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
Publication date: 2016-02-25
J. Anim. Feed Sci. 2016;25(1):20-28
KEYWORDS
ABSTRACT
The effect of fat content in primal cuts of pigs fed diet enriched
in the mixture of linseed (2%), rapeseed (0.5%) and fish (0.5%) oils on healthpromoting
properties of pork was investigated. Twenty-four crossbred (♂Duroc
× ♀(Polish Large White × Danish Landrace)) pigs were fed an experimental
diet restrictively from 60 to 105 kg of body weight. After slaughter the right-half
carcass was dissected into neck, loin, ham, shoulder and belly. Based on the
fat content in the Longissimus thoracis et lumborum muscle pigs were divided
into two groups – with low intramuscular fat content (LMF; below 1.10%) and
with high intramuscular fat content (HMF; above 1.10%). Meat from primal cuts
was characterized with SFA (saturated fatty acids)/PUFA (polyunsaturated
fatty acids) and n-6/n-3 PUFA ratios for meat with health-promoting properties
according to WHO. Belly and neck of pigs from both groups, and loin and
shoulder of HMF pigs met the European Union recommendations for human
nutrition for products which are considered as either n-3 PUFA sources or
products with high n-3 PUFA content. The particular fatty acids content is
positively related with the fat content in primal cuts; however this effect is more
pronounced in meat with a greater fat content.
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