Effect of odontoplasty on apparent digestibility and consumption time of diet for equines

ABSTRACT The aim of this study was to investigate the effect of odontoplasty on apparent digestibility of diet for horses, consumption time, and particle size of feces. Nine horses were used, aged 14.5±3.3 years and weightng 531±38.7kg. The diet consisted of 1.5% of live weight (LW) in Tifton 85 hay and 0.75% of LW in concentrate for both assays. The experiment consisted of two tests of apparent digestibility using the method of total collection, before and after the odontoplasty, where the consumption time of hay and concentrate was also evaluated and the particle size of the feces was analyzed. An effect (P

摘要 本研究旨在探讨牙齿修整术（odontoplasty）对马匹日粮表观消化率、采食时间及粪便粒径的影响。试验共使用9匹马匹，年龄为14.5±3.3岁，体重为531±38.7kg。本试验日粮方案为：两次试验均按马匹活体重（live weight, LW）的1.5%供给蒂夫顿85号干草，按LW的0.75%供给精饲料。试验包含牙齿修整术前后两次表观消化率试验，采用全收粪法开展，同时测定干草与精饲料的采食时间，并对粪便粒径进行分析。试验发现存在效应（P