The effect of linseed diet on carcass value traits and fatty acid composition in muscle and fat tissue of fattening pigs
2011
Beckova, R.,Vyzkumny Ustav Zivocisne Vyroby, Kostelec nad Orlici (Czech Republic) | Vaclavkova, E.,Vyzkumny Ustav Zivocisne Vyroby, Kostelec nad Orlici (Czech Republic)
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 the treatment. The inclusion of linseed increased linoleic and alpha-linolenic acids concentrations in L group while arachidonic acid conc. significantly decreased in fat tissue. The levels of total n-6 PUFA and n-3 PUFA and their ratio were also determined. A significant decrease in the n-6/n-3 PUFA ratio was found in L group. The total SFA content significantly decreased in backfat of L group. The MUFA/SFA ratio was not affected by linseed, whereas the SFA/PUFA ratio was significantly reduced.
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