Comparative evaluation of the meat quality of beef cattle breeds of Indian, African and European origins

摘要: The aim of this study was to rank diverse beef cattle genotypes for meat quality characteristics and determine whether that ranking changed depending on the environment in which animals were finished. Breed groups, ranging from 100% Bos indicus taurus content, derived Indian zebu (Brahman), African (Boran), British breeds (Hereford-Shorthorn), continental (Charolais Simmental) Sanga (Tuli Belmont Red). Heavy steers (>600 kg) raised a tropical finished either pasture or feedlot. For striploins (longissimus) feedlot steers, cooking loss greatest (Z) steaks, least (B) steaks (P < 0·001), intermediate other breeds. eye rounds (semitendinosus) both there no breed differences loss. striploin B most tender, (S) × cross (ZC) more tender than Z steaks. Warner-Bratzler initial yields suggested lower toughness these due myofibrillar toughness. Peak force minus yield smaller, opposite effect increasing connective tissue associated with content. This prominent round samples. In as round. had peak 1·3 kg contrast results where 1·2 higher B. followed same trend relative but lesser extent. From feedlot, S pasture, There evidence heterosis f any attribute. These are best explained terms model incorporating differential effects components implications tenderness grilling roasting cuts predominantly Brahman-based herd northern Australia can be improved through crossbreeding taurine studied.