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本文测定了苹果、麦麸、卷心菜、胡萝卜和梨5种食物的中性洗涤剂纤维、酸性洗涤剂纤维、纤维素、半纤维素和木质素含量,研究了它们增加粪便干重的作用及消化率的变化。结果表明,饲料中2.5%的中性洗涤剂纤维使粪便干重比对照组平均增加1倍。个体变化分析发现粪便干重主要受中性洗涤剂纤维摄入量的影响。5种食物中以胡萝卜的膳食纤维各成份消化率较高。食物的半纤维素消化率平均为纤维素的1.3倍。食物的木质素对膳食纤维降解有不同程度的影响;半纤维素可能对纤维素的消化也有阻滞作用。此外,食物和膳食纤维的物理和生物学特性也与膳食纤维的消化有关。
In this paper, the content of neutral detergent fiber, acid detergent fiber, cellulose, hemicellulose and lignin of five kinds of food such as apples, wheat bran, cabbage, carrot and pear were measured, and their effects on increasing dry weight of excrement and digestion Rate changes. The results showed that 2.5% neutral detergent fiber in the feed increased the average dry weight of feces by 1 time compared with the control group. Individual variation analysis found that dry weight of feces was mainly affected by neutral detergent fiber intake. Five kinds of food to carrot dietary fiber digestive rate higher. The hemicellulose digestibility of food is on average 1.3 times that of cellulose. Food lignin on the degradation of dietary fiber have varying degrees of impact; hemicellulose may also block the digestion of cellulose. In addition, the physical and biological properties of food and dietary fiber are also related to the digestion of dietary fiber.