A new model predicting intake at pasture for beef cows
We developed a simple model predicting dry matter intake and diet digestibility at pasture, for a simulator of grassland-based suckler systems. Herbage is divided into structural components described by their biomass and digestibility. Diet composition is calculated assuming that the most digestible and abundant components are preferred. Dry matter intake depends on diet digestibility, animal intake capacity (function of animal characteristics), and sward biomass. The model is sensitive to digestibility of herbage components. Its predictions were satisfactory, since errror represented 5％ of the mean observed value for diet digestibility and 10％ for the dry matter intake.
intake pasture modelling beef cows
M.Jouven R.Baumont
INRA, UR1213 Herbivore Research Unit 63122 Saint Genes Champanelle, France
国际会议
The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)
北京
英文
755-760
2007-09-16（万方平台首次上网日期，不代表论文的发表时间）