“…Ca, Cr, Cu, Fe, K, Mg, Mn, Na, and Zn in feeds were determined (#968.08) using an atomic absorption spectrometer (AOAC 1995). The P in feed was determined according to a Technicon autoanalyzer method N-4C (Kraml 1966). Total FA content and composition of lipid supplements, diets, and feces were determined according to the procedures of Joy et al (1997), as modified by Crocker et al (1998).…”