can you help translate this painting caligraphy ]2[]3I recently purchased this painting and it has great calligraphy, I would love to know more about the story behind the painting

I recently purchased this painting and it has great calligraphy, I would love to know more about the story behind the painting
the calligraphy is the poem &quot;趙伯駒六馬圖歌&quot; by emperor 乾隆 (1736-1795).
read top to bottom, right to left:

平川苜蓿豐且滋﹒清泉映帶沙岡披﹒戎人習馬知馬性
此䖏調馬實所宜﹒牽者樴者二皆駵﹒白駒黒鬛緤栁枝
昻蔵翹足驪其色﹒一戎跨背鞍不施﹒紫騮廻首嘶厥匹
有駓齕草意自怡﹒驥不稱力稱其徳﹒况復一一皆英竒
作者寓意應有在﹒夏官遺法誰深知﹒即今大宛致汗血
骨格皆合圖中姿﹒亦不渥洼詡作瑞﹒亦不交河資興師
迥立閶闔詄蕩蕩﹒欲起王孫走筆為

the last &quot;column&quot; stated the date as

辛巳首夏御題

the first month of summer of the year 1761.