…feeding of energydense diets over short periods to cull cows could be profitable (Sawyer et al., 2004), improve carcass characteristics (Swingle et al., 1979; Matulis et al., 1987; Cranwell et al., 1996a; Stelzleni et al., 2007) and meat quality (Cranwell et al., 1996b; Stelzleni et al., 2007).