Back fat thickness and fat percentage of 180–day–old Large White pig and Bamei pig.

Back fat thickness (cm) = average back fat thickness over three positions = (back fat thickness at shoulder+back fat thickness at thorax–waist+back fat thickness at buttock)/3. Fat percentage (%) = (Fat weight/carcass weight)×100%; Lean percentage (%) = (Lean weight/carcass weight)×100%.