Briefly, 48 single reared male lambs of the Rasa Aragonesa
breed were weaned at 49 ± 1.61 days of age and then fed a basal
concentrate (control; C) consisting of 185 g of crude protein (CP)/kg
dry matter (DM), 190 g of neutral detergent fibre (NDF)/kg DM, and
13.22 megajoules (MJ)/kg DM supplemented with 30 mg dl-α-
tocopheryl acetate/kg of concentrate. According to the treatment, this
concentrate was replaced with a similar concentrate with the same
characteristics but enriched with 500 mg dl-α-tocopheryl acetate/kg
concentrate (VE concentrate) several days before the lambs reached
their target slaughter weight (22–24 kg).