Fig. 1.

Comparison of determined and calculated metabolizable energy (ME, kcal/kg DM) of meat meal and meat and bone meal using the determined ME values (Adedokun and Adeola, 2005; Olukosi and Adeola, 2009; n = 32). The prediction equation ME (Eq. (4)) was: ME (kcal/kg DM) = 4,055.20 – 43.04 × ash (% DM). Using the regression analysis (determined – calculated ME vs. calculated ME – average of calculated ME), the intercept (– 57.66 ± 79.74; P = 0.475) and slope (– 0.07 ± 0.40; P = 0.859) were not different from 0.