Three different carbohydrate sources (cellulose on wood basis, maize starch and apple pectin) in combination with a low phosphorus (P) basal diet were fed to eight pigs fitted with single ileum-T-cannulas in a balance trial. The effects on net disappearance of dry matter, N, P and Ca as well as phytate (IP6) degradation in the intestine were studied. A basal diet and three diets supplemented with 25% of one carbohydrate source were applied in three experimental periods following an incomplete Latin Square design. Animals were housed individually in balance crates. After 15 days of adaptation to the diets, five days of total excreta collection were followed by two days of spot sampling of ileal digesta. The results showed a significantly decreasing effect of cellulose on the precaecal, postileal and total tract digestibility of DM, N and P. Starch reduced precaecal IP6 degradation and P digestibility. The addition of pectin negatively affected the precaecal digestibility of DM, N and Ca as well as the total tract digestibility of P and Ca. Postileally, cellulose and pectin caused a net secretion while starch induced a net absorption of P.

中文翻译：

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低磷摄入量饲喂不同碳水化合物来源对猪P、Ca和N的盲肠前和回肠后代谢的影响

在平衡试验中，将三种不同的碳水化合物来源（基于木材的纤维素、玉米淀粉和苹果果胶）与低磷 (P) 基础饮食相结合，喂给八头装有单回肠 T 型插管的猪。研究了对肠道中干物质、N、P 和 Ca 的净消失以及植酸盐 (IP6) 降解的影响。根据不完整的拉丁方设计，在三个实验阶段应用基础饮食和补充了 25% 的一种碳水化合物来源的三种饮食。动物单独饲养在平衡箱中。在适应饮食 15 天后，收集总排泄物 5 天，然后对回肠食糜进行两天现场取样。结果表明，纤维素对 DM、N 和 P 的盲肠前、回肠后和总消化道消化率的影响显着降低。淀粉降低了前盲肠 IP6 的降解和磷的消化率。添加果胶对 DM、N 和 Ca 的盲肠前消化率以及 P 和 Ca 的总消化道消化率产生负面影响。Postileally，纤维素和果胶引起净分泌，而淀粉诱导 P. 的净吸收。