Protein in feeds and lean tissue is composed of amino acids.
饲料和瘦肉组织中的蛋白质均由氨基酸组成。
There was a majority of substantial or disconnected connective tissue type in Lean pigs .
瘦肉型猪致密型与不连续型结缔组织比例较高，梅山猪则多为疏松型与连续型。
There was a majority of substantial or disconnected connective tissue type in Lean pigs .
瘦肉型猪致密型与不连续型结缔组织比例较高，梅山猪则多为疏松型与连续型。
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