NUTRITIONAL IMPLICATIONS OF L-ARABINOSE IN PIGS
NUTRITIONAL IMPLICATIONS OF L-ARABINOSE IN PIGS
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DOI：
10.1079/bjn19920077
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发表时间：
1992-07-01
影响因子：
3.6
通讯作者：
TAMMINGA, S
中科院分区：
文献类型：
--
作者：
SCHUTTE, JB;DEJONG, J;TAMMINGA, S
戊糖L-阿拉伯糖是植物来源的饲料成分的非淀粉多糖完全水解释放的最丰富的组分之一。本试验研究了猪在50和100 g/kg以及25、50、75和100 g/kg日粮中L-阿拉伯糖的回肠表观消化率和尿排泄率。作为参考，研究中包括D-葡萄糖。研究了不同日粮条件下猪的饮水量、回肠挥发性脂肪酸流量以及日粮养分的回肠和粪便消化率。用瓣膜后T-盲肠插管制备去势猪以测量回肠消化率。在非插管猪中测量粪便消化率。发现L-阿拉伯糖的表观回肠消化率约为70%。日粮中L-阿拉伯糖的存在增加了挥发性脂肪酸和乳酸的回肠流量，表明L-阿拉伯糖在猪小肠中发生了微生物降解。L-阿拉伯糖部分经尿液排泄。随着日粮水平的增加，尿排泄量占摄入量的百分比呈线性增加（P < 0.01）。在饲喂25 g L-阿拉伯糖/kg饲料的猪中，10.9%的L-阿拉伯糖摄入量出现在尿液中。当猪饲喂含100 g L-阿拉伯糖/kg饲料的饲料时，该水平增加至14.7%。粪便消化率和氮的保留显着降低饲喂L-阿拉伯糖日粮的猪。
The pentose sugar L-arabinose is one of the most abundant components released by complete hydrolysis of non-starch polysaccharides of feed ingredients of vegetable origin. Two studies were conducted to investigate the apparent ileal digestibility and urinary excretion of L-arabinose at dietary inclusion levels of 50 and 100 g/kg, and 25, 50, 75 and 100 g/kg respectively, in pigs. As a reference, D-glucose was included in the studies. Water intake, ileal flow of volatile fatty acids and ileal and faecal digestibilities of dietary nutrients in pigs fed on the different diets were also examined. Castrated pigs were prepared with a post-valvular T-caecum cannula to measure ileal digestibility. Faecal digestibility was measured in non-cannulated pigs. Apparent ileal digestibility of L-arabinose was found to be approximately 70%. The presence Of L-arabinose in the diet increased ileal flow of volatile fatty acids and lactic acid, suggesting the occurrence of microbial degradation of L-arabinose in the pig small intestine. L-arabinose was partly excreted in the urine. The extent of this urinary excretion as a percentage of intake increased linearly (P < 0.01) as the dietary level increased. In pigs fed on the 25 g L-arabinose/kg diet, 10.9% of the L-arabinose consumed appeared in the urine. This level was increased to 14.7% when pigs were fed on a diet containing 100 g L-arabinose/kg diet. Faecal digestibility and retention of nitrogen decreased significantly in pigs fed on the L-arabinose diets.