2.Point out the nouns with the suffixes-tion, -ment, -ness and ajectives with the suffix –al from the text.

3.Form Participle 1 of the following verbs and translate them.

To lie, to supply, to remove, to lower, to contain, to maintain, to be ,to enlarge.

4.Translate into Russian.

1.The thyroid gland , located in the neck , produces thyroxine , a hormone that regulates the rate of body metabolism. 2.This hormone has been separated in pure form. 3.The parathyroid glands are very small glands ,usually located close to the thyroid gland. They secrete a hormone called parathormone, which regulates the calcium metabolism in the blood.4.The simplest method of furnishing iodine is to supply iodized stock salt instead of ordinary salt. 5.When there is insufficient iodine in the food , the thyroid gland enlarges in an effort to manufacture enough thyroxine , and the disease called goitre results.6.There is no need of supplying additional iodine to pregnant animals in areas where there has been no trouble from goitre in new-born animals.7.In lambs and calves affected with goitre , the enlarged thyroid gland is readily seen.8.In foals there is seldom a visible goitre ,the only symptom usually being extreme weakness at birth.

5.Translate into English.

1.Скорость обмена веществ организма контролируется действием тироксина б секретируемого щитовидной железой.2.Для синтеза гормона щитовидной железы –тироксина необходим йод.3.Недостаток йода в рационе взрослых животных вызывает заболевание называемое зобом у новорождённых (поросят, ягнят, телят, жеребят).4.В районах ,где недостаток йода натболее ощутим, необходимо использовать иодизированную соль вместо обычной соли для всего скота.

Text №9 animal feeds. Composition of feeds.

When a chemist makes an analysis of any feedstuff-clover hay, for example –he determines the amount of water , proteins, ash, crude fibre and fat contained in the substance.

Water . All feeds-even those apparently dry, like corn or hay- contain a portion of water varying from 10 to 15 percent.

Roots , such as beets and turnips , contain approximately 90 percent water. The water in the feed serves the same purpose as ordinary water consumed by the animals.

Ash. This is a mineral part of the food substance remaining after the material is burned. It contains most of the mineral elements which comprise a necessary part of every ration.

Proteins. These important constituents are characterized by the fact that they contain nitrogen.They serve the purpose of building up tissue in the body –such as muscle , skin, etc. –and constitute the main element in the curd of milk. Lean meat and the white of an egg are examples of the nearly pure protein material .All the hays , clover, alfalfa, cowpea, and soybean contain the largest amount.

Among the common concentrates linseed meal, cotton-seed meal, and wheat bran contain relatively large quantities. A certain amount of proteins is indispensable in ration, as nothing can substitute them.