南美野生羊驼是南美洲类似骆驼的动物中最高的动物。南美野生羊驼的毛太硬，没有用处。
The guanaco is the tallest of the South American camel-like animals. The hair of a guanaco is too stiff to be useful.
黑色的羊驼的毛还要长一些，这种毛出口到世界各地，织成织品。
The dark-colored alpaca has even longer hair, which is exported all over the world and made into fabric.
各处理组在实验期绒毛生长速度均显著提高，但褪黑激素对羊驼采食量及净毛率无影响。
During the experiment the fleece growth rate in treated groups was increased significantly, but MTL had no effects on picking amount and net fleece.
各处理组在实验期绒毛生长速度均显著提高，但褪黑激素对羊驼采食量及净毛率无影响。
During the experiment the fleece growth rate in treated groups was increased significantly, but MTL had no effects on picking amount and net fleece.
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