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Centesimal composition of lamb meat submitted to diets with different concentrate levels

Centesimal composition of meat from lambs submitted to three diets with different concentrate levels was studied. Eighteen Morada Nova male lambs were used, with 15kg initial live weight. The diets were: D1 - 60% concentrate (C) and 40% roughage (R); D2 - 45% C and 55% R and D3 - 30% C and 70% R. When animals that received the D1 reached 25kg live weight, the respective lot, formed by three animals, was slaughtered. The carcasses were refrigerated at 4ºC for 24 hours. From the left half carcass were obtained five cuts: neck, shoulder, ribs, loin and leg. The legs were dissected and the Semimembranosus muscle was obtained in order to determinate the centesimal composition. The concentrate levels in the diet did not affect water, ash and fat content of the lamb meat, but they affected (P<0.05) meat protein content. Meat from lambs fed with 30% and 60% concentrate in the diet had similar protein content.

ash; fat; protein; sheep; water


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