Dhanoa M S, France J, Crompton L A, Mauricio R M, Kebreab E, Mills J A N, Sanderson R, Dijkstra J, López S
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, UK.
J Anim Sci. 2004 Mar;82(3):733-46. doi: 10.2527/2004.823733x.
A method is proposed to determine the extent of degradation in the rumen involving a two-stage mathematical modeling process. In the first stage, a statistical model shifts (or maps) the gas accumulation profile obtained using a fecal inoculum to a ruminal gas profile. Then, a kinetic model determines the extent of degradation in the rumen from the shifted profile. The kinetic model is presented as a generalized mathematical function, allowing any one of a number of alternative equation forms to be selected. This method might allow the gas production technique to become an approach for determining extent of degradation in the rumen, decreasing the need for surgically modified animals while still maintaining the link with the animal. Further research is needed before the proposed methodology can be used as a standard method across a range of feeds.
提出了一种确定瘤胃降解程度的方法，该方法涉及两阶段数学建模过程。在第一阶段，一个统计模型将使用粪便接种物获得的气体积累曲线转换（或映射）为瘤胃气体曲线。然后，一个动力学模型根据转换后的曲线确定瘤胃中的降解程度。动力学模型以广义数学函数的形式呈现，允许从多种替代方程形式中选择任何一种。这种方法可能会使气体产生技术成为一种确定瘤胃降解程度的方法，减少对手术改造动物的需求，同时仍保持与动物的联系。在将所提出的方法用作一系列饲料的标准方法之前，还需要进一步研究。
