Liha töötlemine
finishing heifers generally improved the is a major determinant of purchase intent
efficiency of carcass gain with minimal effect with consumers preferring leaner products
on marbling score, yield grade, loin muscle (Brewer et al. 2001; Rincker et al. 2008).
area, or percentages of carcasses grading Fernandez et al. (1999) reported that pork
USDA Choice. Avendano-Reyes et al. texture and taste are enhanced at intramuscu-
(2006) reported that feeding either zilpaterol- lar fat levels up to 3.25%, but inconsistent
or ractopamine-hydrochloride considerably effects occurred with respect to tenderness/
improved gain-to-feed ratio, hot carcass toughness.
weight, and carcass yield. Zilpaterol increased Ellis et al. (1996) reported that longissi-
loin muscle area. Both beta-agonists mus muscle from pig genotypes selected for