There are also a number of studies carried out to demonstrate ways
to enhance fatty acids considered beneficial for human health in poultry
meat. Similarly as shown for ruminants, offering grass is already
efficient to a certain degree. Accordingly, Molee, Puttaraksa, and
Khempaka reported that keeping poultry in a free-range system
increased the proportion of n−3 fatty acids and reduced the ratio of
n−6 to n−3 fatty acids in Thai indigenous chicken meat, although
the main diet predominantly consisted of corn and soybean meal, a
diet also fed to a control group. The Ruzi grass used for the paddock in
the free-range group was rich in n−3 fatty acids. Also Ponte et al.found a greater level of n−3 fatty acids in breast meat of broilers when kept in a free-range pasture
system.