Studies On Processing Technology Of Compound Ration Formulated With Complex Treated Maize Stalk For Bovine And Mutton

Technical flow-process and parameters of biochemically treated crop fodder ration formation processing were investigated and determined. Furthermore, the effect of different ration ingredients and their characters, different additives and their adding levels on formation effectiveness of crop fodder ration were studied systematically. Besides, the optimal processing scheme was selected from 27 processing scheme through fuzzy multifactorial model.The results showed that: (1) The best Technical flow-process is Cuttings—Biochemically treating — Drying—Adding concentrate —Commixing — Modulating—Pelleting—Drying and cooling —Packing. (2) When the moisture content of ration(concentrate/roughage is 4:6) was 21.48, the shaping rate was the highest (90.36%), the density was the largest (861.63kg/m3 ), and smash resistance was the best (95.20%). Pellets made with roughage size 3 had the highest density(885.63 kg/m3). The ration adding velocity had no significant effect on pelleting, but low adding velocity led to poor production efficiency, while high adding velocity caused frequently choke. (3) With the increasing of adding quantity of bentonite, shaping rate, smash-resistance and density were improved, but the nutrient density of ration was too low when the bentonite adding level was too high. So, 3% was adopted as a optimum adding level. Adding molasses did not have significant effect on pelleting indexes, such as shaping rate , smash-resistance, density and so on.To the contrary, it had a faint depressing trend on shaping rate .(4)With the ratio of concentrate/roughage increasing, the shaping of ration was becoming harder. While with the increased crude protein level in ration, the shaping of ration was becoming easier. The alfalfa hay has a good character as a ingredient to haping pellet, when alfalfa hay totally take the place of corn fodder ,the shaping effectiveness was the best. (5)Four factors(moisture , molasses, bentonite , alfalfa hay/corn fodder) had different effect degree on three pelleting indexes(shaping rate, smash-resistance, and density) ,and the order was ranked as follow: moisture > Bentonite > alfalfa hay/corn fodder > molasses. 23%moisture, 3% Bentonite, 25:35 alfalfa hay/corn fodder, 1.5% molasses forecasted by The Orthogonal Experiment Design [L₉(3⁴)] were the best level to pellet. Through analysis of variance, neither alternating of moisture and size,nor alternating of size and bentonite had effect on pelleting, while alternating of moisture and bentonite had a significant effect on pelleting, and level 3 was the best adding quatity. (6) Through a fuzzy multifactorial evaluation of mathematical model, the three best processing scheme was ranked as: processing scheme 24, processing scheme 27, processing scheme 21.