英语翻译For these reasons,researchers in tropical countries are

英语翻译
For these reasons,researchers in tropical countries are encouraged
to take advantage of the opportunities offered in the area of nutrition of
"small non-ruminant herbivores" in the tropics,and to participate in the
development of feed resources and feeding systems which take account
of sustainability criteria.The appearance of a new computerized journal
dealing specifically with small non-ruminant herbivores reflects the
increasing interest being given to these species (RLPHNR,1993).
The nutritional requirements of small non-ruminant herbivores are
determined by the relative activities of:
C digestion and absorption in the duodenum,and
C digestion by fermentation and absorption in the caecum.
C In the case of the rabbit,the guinea pig and probably the picure
(Dasyprocta spp.),must be added coprophagy as a physiological
recycling mechanism.Tropical animal feeding:a manual for research workers 49
The last two processes are ruled out in the case of the snails at least until
more is known about the physiology of digestion in these species.
The fact that the small non-ruminant herbivores must satisfy their
nutritional requirements by pathways (i) and (ii) has important implic-
ations,for example:
C Energy metabolism is based on the utilization of glucose,VFA and
lipids.
Therefore,tropical feed resources must be selected according to their
capacity to supply:digestible fibre (the source of VFA),sugars and
starch (sources of glucose) and pre-formed lipids.
In the tropics,satisfying the energy needs of small non-ruminant
herbivores in a sustainable manner probably requires that major
emphasis is given to maximizing intake rather than digestibility.The
reasons for this are as follows:
C From the physiological standpoint,these animal species have a high
capacity to tolerate bulky feeds.
C Optimizing the concentration of fibre in the diet is a way of ensuring
that intake is maximized,provided that there is an appropriate
balance between the digestible and indigestible fractions.This
because these fractions perform separate functions:"fibre" as a
source of VFA and "fibre" as a mechanism to stimulate rate of
passage.Rate of passage is a fundamental feature of the strategy,
because of its close relationship with intake and coprophagy,in the
case of the rabbit and guinea pig.
C The role of lipids is important because of the enormous potential in
tropical regions of sources of plants that produce these nutrients in
the fruit (e.g.,the African oil palm).Many trees found in the tropics
produce nuts and seeds which are rich in lipids.A tree attracting
attention in Venezuela (Cardozo,A.,personal communication) prod-
uces oil which can be "tapped" from the trunk in a similar way to
that used to obtain latex from the rubber tree

基于这些原因,在热带国家的研究人员,鼓励
考虑到在营养面积提供的机遇
“小非反刍草食动物”,在热带地区,并参加
开发饲料资源和饲养系统,考虑到
可持续性标准.一个新的电脑杂志的外观
处理小非反刍草食动物特别是反映了
越来越多的关注正考虑对这些物种（RLPHNR,1993）.
小非反刍草食动物的营养要求
由相对活动：
ç在十二指肠消化和吸收,
ç消化发酵和盲肠吸收.
C在兔,豚鼠和案件可能picure
（Dasyprocta属.）必须添加食粪作为一种生理
回收mechanism.Tropical动物饲料：为科研工作者49手册
最后两个进程排除在蜗牛的情况至少要到
更多的是了解的这些物种的消化生理的影响.
事实上,小非反刍草食动物,必须满足他们的
由途径（一）和营养需求（二）具有重要的意蕴,
例如ations：
C通过能源的新陈代谢是基于葡萄糖,VFA及利用
血脂.
因此,热带的饲料资源,必须根据自己的选择
供应能力：可消化纤维（挥发性脂肪酸的来源）,糖和
淀粉（葡萄糖的来源）和预先形成的脂质.
在热带地区,满足能源需求的小非反刍动物
以可持续的方式可能需要的主要食草动物
强调的是最大限度地摄入量,而不是消化率.该
这种情况的原因如下：
c从生理角度来看,这些动物具有较高的
饲料的能力,忍受笨重.
ç优化膳食纤维中的浓度是保证方式
最大化的摄入,只要有适当
平衡的消化和消化分数.这
因为这些部位执行不同的功能：“纤维”作为
来源VFA及“纤维”作为一种机制,以刺激率
通过.的通过率是该战略的一个基本特征,
因为它的密切关系,在摄入和食粪,
案件的兔子和豚鼠.
C的作用是重要的,因为血脂的巨大潜力
对植物产生这些营养素的来源,在热带地区
水果（例如,非洲油棕榈）.许多树木在热带地区发现
坚果和种子生产中的脂类丰富.树吸引
在委内瑞拉的注意力（卡多佐,答,个人通信）督促,
城市集体企业油可以“挖掘”以类似的方式从树干
曾经获得橡胶树胶乳
明不明白?（有些地方看不懂,可以与上一行连起来看）