The effect of linseed diet on carcass value traits and fatty acid composition in muscle and fat tissue of fattening pigs

Abstract

ABSTRACT:The aim of the study was to evaluate the effect of linseed in the diet of fattening pigs on carcass value traits and changes in the fatty acid profile in muscle and fat tissue. Thirty crossbred gilts were divided into two groups (control C and experimental L) and fed a commercial feed mixture for fattening pigs. Ground linseed was added to a feed mixture for the experimental group. The average daily gain, lean meat percentage and intramuscular fat content were not affected by the linseed diet but pH1 value and drip loss were significantly influenced by dietary treatment (P < 0.01). The inclusion of linseed increased linoleic and alpha-linolenic acid content in L group (P < 0.05, P < 0.01) while arachidonic acid content was decreased in both muscle (P > 0.05) and fat tissue (P < 0.01). The content of total n-6 PUFA and n-3 PUFA and their ratio were also determined. A significant decrease in the n-6/n-3PUFA ratio was found in L group compared to C group (P < 0.01). The total SFA content in muscle tissue was not significantly affected (P > 0.05) by the linseed diet but it was decreased (P < 0.01) in backfat. The MUFA/SFA ratio was not affected by the linseed diet (P > 0.05) whereas the SFA/PUFA ratio was reduced (P < 0.01).

Effect of linseed oil sediment in the diet of pigs on the growth performance and fatty acid profile of meat

“…Okrouhlá et al (2013) also reported lower content of palmitoleic (C16:1n-7) fatty acid in the study with linseed, but as MUFA can be synthesized in the pig body, their contents in meat are not so important as those of PUFA Kralik et al, 2010). Bečková and Václavková (2010) and Okrouhlá et al (2013) indicated that linseed in the diet of pigs decrease total MUFA; however, no similar results were found in our study. The current results revealed that the MUFA:PUFA ratio decreased by 1.02-0.89 units in the meat of experimental groups 1 and 2, thereby improving the quality of pork.…”

“…Corino et al (2008) showed that inclusion of extruded linseed in the diet of pigs increased n-3 PUFA content in both longissimus dorsi muscle and backfat and decreased n-6:n-3 PUFA ratio. Inclusion of 13.4% ground linseed in the diet of pigs increased the content of linoleic and alpha-linolenic acids in the muscle tissue and backfat (Bečková and Václavková, 2010).…”

The Influence of Probiotic Lactobacilli and Flaxseed on the Health of Weaned Piglets and Metabolism of Polyunsaturated Fatty Acids (PUFAs)

“…On the basis of increased amount of substrate, conversion of ALA to long-chain ω-3 PUFAs increased in the body and resulted in their increased concentration in muscle tissue. Our results agree with those obtained in studies conducted in pigs[2, 11,13,29], chickens[41] and…”

Effect of Dietary Extruded Linseed and Walnut Meal Mixture (8:1) on Performance and Plasma Protein Profile in Weaned Piglets

“…The effects of feeding linseed was extensively studied on grower-finisher pigs and had been stated that linseed is an effective feed for increasing the n-3 PUFA content of pig meat and improve the n-6:n-3 PUFA ratio (Rentfrow et al, 2003). Previous findings (Matthews et al, 2000;Riley et al, 2000;Kouba et al, 2003;Corino et al, 2008;Guillevic et al, 2009;Bečková and Václavková, 2010;Nurnberg et al, 2011) reported that inclusion of linseed in pig diets may improve the nutritional value of pork meat without deleteriously affecting organoleptic characteristics, oxidation or colour stability and enhance the levels of n-3 fatty acids, which have a potentially positive health effect in humans.…”