Abstract
Thirty llamas were used to study the effect of a 90day feed supplementation on meat quality, chemical composition and muscle fatty acid profile. Treatments were: GR=llama on native pasture until slaughter; GR+SH=like GR, but with overnight free access to barley/alfalfa hay; and GR+SC=like GR, but with overnight free access to a wheat bran/sorghum grain concentrate. The supplementation had no effect on postmortem pH and temperature decline in the Longissimus lumborum muscle (LLM), cooking losses nor Warner–Bratzler shear force values (P>0.05). Meat from GR+SC llama had higher fat content in LLM (P<0.05) compared to GR and GR+SH llama. Intramuscular fat from GR+SH llama showed higher (P<0.01) proportions of polyunsaturated fatty acids, higher (P<0.05) polyunsaturated fatty acids/saturated fatty acids and desirable fatty acids ratio, lower (P<0.05) omega-6/omega-3 (n−6/n−3) ratio, and higher (P<0.01) conjugated linoleic acid.
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