Carcass traits, commercial cuts, tissue composition, intake, digestibility, and performance of Sindhi bulls subjected to feed restriction

ABSTRACT: This study showed the effect of feed restriction on performance, nitrogen balance (NB), microbial protein synthesis, carcass traits and meat cut thirty-two Sindhi non-castrated males (296 ± 21.3 kg initial BW 21 1.5 months old). All bulls were distributed in a completely randomized design with four treatments (feed levels) (0, 15, 30, 45% total dry matter -DM) data subjected to analysis variance regression. Nutrient intake, NB, final BW, gain, feeding efficiency, hot cold weight, subcutaneous fat thickness, commercial cuts tissue decreased linearly (P<0.05) by level. A linear increased digestibility DM, NDFap, carbohydrates proportion muscle tissue, as well quadratic increase non-fibrous bone percentage level imposed (P<0.05). The did not affect (P>0.05) crude protein, synthesis deposition longissimus dorsi area + fat/bone ratio. reduced intake consequently bulls; however, it promoted reduction N excretion, which can be important if conducted subsequent compensatory weight gain.