physical characteristics, chemical composition and protein fractions of iran sugar beet pulps compared with tabular values of cornell net carbohydrate and protein system

the aim of this study was to evaluate the physical characteristics, chemical composition and protein fractions of sugar beet pulp produced in iran and comparing them with the tabular values of cornell net carbohydrate and protein system. a total of 39 samples of 13 different sugar factories were sampled from iran-wide. particle size distributions of samples were determined using the penn state particle separator. results showed that collected samples of sugar beet pulp had significantly (p < 0.01) greater cp (10.6 vs. 9.8) and ee (0.90 vs. .60) concentrations and lesser om (92.9 vs. 94.7) and ndf (40.6 vs. 44.6) contents compared to the tabular values. furthermore, sugar beet pulp, based on cp%, had greater soluble protein (39.2 vs. 26.5), a fraction (35.6 vs. 25.5), b1 fraction (3.6 vs. 1.0) and lesser b2 fraction (11.7 vs. 20.4) and b3 fraction (37.2 vs. 41.8) than the tabular values (p < 0.01). accordingly, only 25 and 10% of collected samples had an equal value to the tabular values in terms of cp and ndf concentrations, respectively. therefore, it is highly recommended that beet pulp is analyzed before balancing rations by nutrition consultants and/or dairy producers or average values resulted from this research are used at least in order to have more balanced diets.