The study investigated the effects of feeding duration on length and weight ileum, basal endogenous loss (BEL) phosphorus (P) broiler chickens fed a P-free diet (PFD). A standard starter was to 384 birds for 15 days. On day 15, they were weighed randomly allocated one three treatment groups in randomized complete block design, with eight replicate cages per 16 cage. each group PFD 2, 3, or 4 Th...