Charles Ellicott Commentary 1 Chronicles 27:29

"and over the herds that fed in Sharon was Shitrai the Sharonite: and over the herds that were in the valleys was Shaphat the son of Adlai:" — 1 Chronicles 27:29 (ASV)

And over the herds that fed in Sharon. —Heb., the oxen that grazed in the Sharon. The Sharon (i.e., “the Level”) was a fertile strip of pasture-land running along the coast of the Mediterranean, between Caesarea and Joppa. (See Song of Solomon 2:1; Isaiah 33:9.)

Shitrai. —Hebrew margin, Shirtai.

Over the herds that were in the valleys. —Apparently the valleys of the highlands of Judah. Another reading is “in valleys.”