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This study investigated the effect of feeding different levels of protected fat (calcium soaps of tallow) on fattening performance, carcass characteristics, meat quality, fatty acid composition of  Longissimus Thoracis  (LT) muscle and economic evaluation of 45 fat-tailed Morkaraman male lambs. The lambs were randomly divided into three groups including a control diet without protected fat (CON), supplemented with 2% protected fat (group PF2), and supplemented with 4% protected fat (group PF4) during the fattening period. Eight lambs randomly selected from each group were slaughtered to determine carcass characteristics and meat quality. Supplementing protected fat significantly improved the fattening performance and carcass characteristics ( p &lt;0.05). The groups were similar in terms of pH, colour, ether extract, dry matter and sensory evaluations, except for the crude protein of group PF2. Myristic acid and stearic acid ( p &lt;0.05), which are saturated fatty acids (SFA), were decreased with the supplementation of protected fat, while palmitic acid was increased ( p &lt;0.01). The fattening with protected fat had a highly significant positive effect on important unsaturated fatty acids such as oleic acid ( p &lt;0.01) and resulted in an increase of approximately 91% in the conjugated linoleic acid (CLA) ( p &lt;0.05). SFA was significantly decreased, and health indicators were improved ( p &lt;0.01). In conclusion, the supplementation of protected fat had a positive effect on fattening performance, carcass traits, chemical, sensory properties and economic evaluation.

Improving the functional value of meat quality by feeding with protected fat supplementation in Morkaraman lambs