Analysis On Inulin Output Of Chicory And Effect Of Inulin On Layer

At present, the domestic research on chicory(CHORIUM INTYBUS L.) inulin still is at the initial stage. This research was to explore preliminarily the output factors and the influence of chicory inulin on layer. The best chicory variety for the highest inulin content and yields was screened from 4 varieties; The best harvest time under the condition of cutting or not was determined for the highest inulin content and yields of the best variety; Inulin content at different time in fresh and roasted chicory root storage at different temperature was measured to find out the best storage methods; Feed intake, intebsity of laying, feed/egg ratio, death and culling rate, average egg weight, eggshape index, eggshell/egg, thickness of egg shell, Haugh unit, egg total lipid contents and triglycerides, total serum cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL-C), and low density lipoprotein cholesterol (LDL-C) concentrations was measured to investigate the influence of inulin and chicory extracts on production performance, egg quality and serum lipid of layers. The major results were shown as follows:Puna Cichorium intybus had the highest content(300mg/g)and yield(160g/m2).The fresh chicory root stored at -4℃had the highest content at the first 9 weeks, thereafter, the roasted chicory root had a higer content than the fresh root especially stored at -4℃.Cutting or not had no effect on the inulin content of chicory that were both 35%, but the time chicory had the highest inulin content were mid-October and mid-August respectively. The cuted chicory had the highest inulin yield of 150g/m2 that was 40 g/m2 higher than the not cuted, which were harvested 2 month later than the latter in mid-October.D grup(BD+1.5%inulin) had higher (P < 0.01) feed intake, B, C, E, F,G grups (BD+0.1%, 0.5%, 1.5%, 2.0% chicory extracts , BD+0.5% inulin) had lowe(rP﹤0.01) death and culling rate ; J grup (BD+2.0% chicory extracts), had higher (P﹤0.01)egg-yolk color , B grup (BD+0.1% inulin) had lower the total serum cholesterol (TC)(P﹤0.01),triglycerides (TG)(P﹤0.01),the total egg cholesterol(P﹤0.01)and triglycerides (P﹥0.05).The chicory extraction were better than inulin in reducing death and culling rate and improving egg-yolk color, but inulin were better than chicory extraction in other items. The results indicate that the variety, storage temperature and time ,cutting and the harvest time have the important influence to the chicory inulin output;extract from Cichorium intybus L. roots and inulin are able to improve lipid metabolism observed in layers,...