畜牧兽医专业英语十篇课文翻译 Lesson 1 skeleton The skeleton is the basic framework of the animal. It gives it shape and size.The skeleton carries and supports the weight of the body . It protects some organs from external damage ,e.g.ribs ribs protect the heart and lungs and skull protects the allow the animal to move. The bones contain reserves of some elements which the animal can mobilize when they are needed by the body(1) 动物骨架的基本框架。它给出了它的形状和尺寸。骨架进行和支持身体的重量。它可以保护从外部损伤某些器官， egribs肋骨保护心脏和肺部，骷髅保护动物移动。骨骼含有的一些元素储备的动物时，可以调动他们所需要的身体（1） The skeleton develops in the unborn animal from cartilage which hardens as chemical salts are deposited in it. 骨架在未出生的动物从化学盐沉积在软骨硬化的发展。 In the aged animal the amount of mineral of in the bone increases. This makes the bones brittle. Bones grow in both length and thickness. The bones of the skeleton do not develop at the same rate in the growing animal (2) . The skull and hind limbs of a new-born lamb form a high percentage of the skeleton but this decreases as the lamb grows. Hind limbs develop faster than fore limbs. 在老年动物矿物在骨的增加的量。这使得骨骼脆性。骨骼的生长在长度和厚度。骨头的骨架不以同样的速度在不断增长的动物（2）发展。一个新出生的羊羔头骨和后肢形成一个高比例的骨架，但降低的羔羊生长。后肢比前肢发展得更快。 Animal breeders by careful selection can changes produce and size of the skeleton and thus the animal(3). Sometimes the changes produce weakness in the skeleton . Very long pigs can suffer from back troubles. Movement depends on the joints between the bones to move under muscle actiong. Joints fall into there categories. 通过仔细选择的动物育种者可以改变产生和大小的骨架，因此，动物...
