《明史·志·卷六十八》
淮、徐开始养马，也以人丁为标准。
淮、徐初养马，亦以丁为率。
Horse raising was initiated in Huai and Xu, with adult males serving as the standard.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 淮、徐初养马，亦以丁为率。 [/INST] Horse raising was initiated in Huai and Xu, with adult males serving as the standard.</s>
Explain the meaning of this Classical Chinese passage in English: 淮、徐初养马，亦以丁为率。
user
Horse raising was initiated in Huai and Xu, with adult males serving as the standard.
assistant