Michalet-Doreau B
Unité de la Valeur Alimentaire, INRA, Theix, Ceyrat, France.
Reprod Nutr Dev. 1990;Suppl 2:151s-152s.
In sacco dry matter (DM) and nitrogen (N) disappearances without degradation (ie, lost as particles) were measured in 18 concentrates. Mean losses were 17% DM and 11% N, but were larger with oats (40 and 32%). They led to a mean overestimation of N degradability by 3.4 points. Overestimation was higher (up to 8 points) when the losses were high, as for oats, or when degradability was low, as for fish meal.
在18种浓缩饲料中测定了瘤胃内干物质（DM）和氮（N）的非降解性消失量（即作为颗粒损失）。平均损失为17%的干物质和11%的氮，但燕麦的损失更大（分别为40%和32%）。这导致氮降解率平均高估了3.4个百分点。当损失较高时，如燕麦，或降解率较低时，如鱼粉，高估程度更高（高达8个百分点）。
