Lesson 12 Energy Utilization
一、Words and Expression
disposition /ˌdɪspəˈzɪʃn/ n.安排,布置,部署
combustion /kəmˈbʌstʃən/ n.燃烧;(化学)氧化
calorimeter /ˌkæləˈrɪmɪtər/ n.热量计
digestible /daɪˈdʒestə / adj.易消化的
indigestibility /ˌɪndɪˌdʒestəˈbɪləti/ n.难消化
lignin /ˈlɪɡnɪn/ n.木质素
roughage /ˈrʌfɪdʒ/ n.粗粮,粗饲料
concentrate /ˈkɑːns(ə)ntreɪt/ n.精饲料
carbohydrate /ˌkɑːrboʊˈhaɪdreɪt/ n.碳水化合物
feces /ˈfiːsiːz/ n.排泄物,粪便;渣滓
accomplish /əˈkɑːmplɪʃ/ v.完成,实现
urine /ˈjʊrɪn/ n.尿液
fermentation /ˌfɜːrmenˈteɪʃn/ n.发酵
heat Increment /hiːt ˈɪŋkrəmən/ n.热增值,热增耗
ration formulation /ˌdɪspəˈzɪʃn/ n.日粮配制
excrete /ɪkˈskriːt/ v.排泄;分泌
take into account /teɪk ˈɪntə əˈkaʊnt/ n.考虑;重视;体谅
ruminant /ˈruːmɪnənt/ n.反刍动物;adj.反刍动物的
indigestibility /ˌɪndɪˌdʒestəˈbɪləti/ n.难消化
precise /prɪˈsaɪs/ adj.精确的,精密,准确的;一丝不苟的
二、Sentence Structures and Analysis
1、This is especially important from the standpoint of balancing rations for ruminants since such animals normally have significant energy losses of both types,and different feeds and rations vary greatly in the amount of these losses.
2、In the final analysis, however, to the extent that reliable NE values are available,they represent the most precise measure of an animal's energy needs and the capacity of different feeds to meet these needs.
3、Not only do NE values allow for the energy losses of the urine and fermentation gases,but also they take into consideration the energy losses from the heat of nutrient utilization or the heat increment.

