Fiber birta loola jeedaa waa in la gooyo habka silig birta wanaagsan, xiirid birta bir qabow giringiriyey, ingot wax lagu shiida ama birta nidaamka sharciga uumi degdeg ah, shubka qaso qadarka saxda ah ee fiber birta, hagaajin karaa caabbinta adkaysiga, leexin xoog, iyo si weyn u wanaajiso adkeysigeeda iyo saameynta iska caabinta.