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The present work assessed the effect of supplementation of 0.8% dietary Arbocel® RC Fine, a readily available commercial lignocellulose, to poultry feed. In a complete randomized design using 36 individually caged mature dubbed Hy-Line roosters (aged 55 weeks) grouped in 4 treatments with 9 birds per treatment, a digestibility trial was performed to determine apparent and true metabolizable energy values along with digestibility coefficients of protein and amino acid in Arbocel® containing diets. Results showed that 0.8% Arbocel® supplemented diets improved protein digestibility by 6% (P

Three experiments were conducted to evaluate broiler chicken performance, ready-to-cook carcass value, and the size of cut-up parts of the left carcass section in response to feeding a corn-soybean meal diet containing graded levels of Litani (L2), Pamir 35 (P2), or Rihan 03 (R6) barley without or with 0.1% enzyme. In the first experiment, a diet containing 25% L2 or R6 without or with enzyme was fed during the finisher period. Enzyme supplementation of the barley containing diets improved (P

Two experiments were conducted to determine threonine requirement for maximum performance and breast and drumstick major muscle relative weights of turkey toms raised from 8-10wk and 11-13wk of age. Also plasma free amino acid concentration in response to feeding a diet with graded levels of threonine was measured. A corn-peanut meal diet was formulated to contain 0.59, 0.72, 0.85, 0.98 and 1.11% threonine and fed to Large White turkey males (British United Turkeys, BUT) in both trials. Each treatment was replicated among 5 and 8 individual cages in experiments 1 and 2, respectively. Two days prior to the end of each trial, blood was removed from the brachial vein of five toms per treatment and analyzed for plasma amino acid concentration. At the end of each experiment, final body weight and feed consumption were recorded and feed efficiency was computed. Birds were then sacrificed and pectoralis major and gastrocnemius muscles were weighed. The 0.85% dietary threonine resulted in the highest weight gain and feed efficiency ratio in the first trial. In the second experiment an increase (P

Two experiments were conducted to determine the true metabolizable energy corrected to zero nitrogen balance (TMEn) and true amino acid availability (TAAA) of three local barley varieties, two-row Litani (L2), two-row Pamir-35 (P2), and six-row Rihan-03 (R6) and to study the effect of enzyme supplementation on their apparent metabolizable energy corrected to zero nitrogen balance (AMEn). Forty grams of glucose, corn, or barley variety grains was precision intubated to eight individually caged Babcock B 380 roosters. The TMEn of L2, P2, and R6 (3224, 3419, and 3253kcal/kg, on dry matter basis (DM), respectively) was lower than that of corn (P