CV1 was more suitable for feeding sheep than CV2 because of lower tannin contents in CV2 changing from 1.5% to 4.5% with different seasons.
大叶地锦中的单宁含量低于小叶地锦，更适于绵羊采食，并且随季节变化，在1.5% - 4.5%之间分布。
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