Metabolizable Energy Values of Treated Wheat Bran and Wheat Millrun Protein Concentrate

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Using broiler chicks, the nitrogen corrected metabolizable energy (ME) was determined for wheat bran, pelleted wheat bran, and three pelleted wheat brans to which either NaOH, NH4OH, or HCl were added prior to pelleting, and wheat bran treated with a commercial cellulolytic enzyme concentrate (Pectinol 41P). The dry matter ME values were 1612, 1659, 1645, 1703, 1770, and 2132 kcal/kg, respectively. The ME values for the HCl-pelleted bran and Pectinol 41P-treated bran were both significantly higher than that of the untreated bran and significantly different from each other (P=.05). There was no significant improvement in ME from the other bran treatments. The ME was also determined for three wet alkaline processed wheat millrun protein concentrates containing oh a dry matter basis 27, 27, and 24% protein, .9, 1.0, and 1.1% crude fiber, and 47, 51, and 49% starch, respectively. The millrun concentrates were found to contain 3803, 3882, and 3770 kcal ME/kg, respectively. The average ME value of the millrun concentrates was about 96% higher than the ME of the original wheat millrun.