种良种的种
A seed of a good variety
以上为机器翻译结果，长、整句建议使用 人工翻译 。
试验结果表明：内蒙古西部良种奶牛繁育中心引进的12头荷斯坦种公牛符合种用公牛的繁殖性能的要求，表明可以进行正常的配种和种用。
The results showed that: the 12 Holstein Bulls that were introduced by Western Inner Mongolia improved cow breeding center can fit for the requirement of reproductive, and can be used for breeding.
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