Once they have devoured all of the available organic matter, they are removed, sold, and the remains are sold off as what one would call worm castings.
Mar alla markii ay wada cuneen dhammaan waxyaabaha dabiiciga ah ee jira, waa la soo saaraa, waa la iibiyaa, hadhaagana waa loo iibiyaa sida loogu yeero dirxi dixiriga.