Animals were examined and drenched with anthelmintic (Cydectin; Moxidectin, Fort Dodge Animal Health, Fort Dodge, Iowa, USA). These goats were housed indoors in metabolism crates and offered a mixed diet (Table 1) with 15 % bermudagrass hay (BGH; Cynadon Dactylon). All the diets were weighed before and after being offered to measure DMI. Mixed diets contained different levels of the ground PB replacing ground wheat straw (WS; Triticum aestivum). Experimental treatments included: the control diet–0 % PB plus 30 % WS, 15 % PB plus 15 % WS, and 30 % PB plus 0 % WS.