Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
METODIChKA_angl_1_vet.doc
Скачиваний:
0
Добавлен:
01.04.2025
Размер:
581.63 Кб
Скачать

5. Answer the questions.

1. Why are domestic animals so important for man? 2. What raw materials do domestic animals supply industry with? 3. What are the four types of cattle? 4. What are sheep raised for? 5. Why is hog-breeding the most economic way of producing meat? 6. What sources of producing human food do you know?

Lesson 3. The Cow

Word List a

1. abomasum

- сычуг – четвертый отдел преджелудка животных

2. calf (pl. calves)

- теленок

calving

- отел, роды у коровы

3. colostrum

- молозиво

4. compartment

- отдел (желудка), перегородка

5. consist in

- заключаться, состоять.

6. gestation = pregnancy

- период беременности, стельность (коровы)

7. laxative

- слабительный

8. mature

- зрелый (скот), созревать, доводить до зрелости

9. milk

- молоко, доить

10. omasum

- книжка – третий отдел преджелудка животных

11. quality

- качество, сорт

milkling quality

- молочное качество, удойность

12. quantity = amount

- количество

13. reticulum

- сетка – второй отдел преджелудка животных

14. rumen

- рубец – первый отдел преджелудка животных

15. skin

- кожа, шкура

16. supply

- запас, снабжение; снабжать; питать

17. tо feed (fed)

- кормить

1. Read and translate the text.

THE COW

The cow belongs to the class of ruminants. Its value as a domestic animal consists in her ability to consume and digest large quantities of roughage and to convert it into milk and meat for human food.

The cow's stomach, which is a compound one, has four distinct compartments; rumen, reticulum, omasum and abomasum. The stomachs of mature cows vary in capacity from 25 to 60 gallons (150 to 300 pounds) depending on the size of the animal.

To produce a large supply of rich milk, cows must be not only well fed but also be of good milking qualities. The cows that are producing milk require a much larger quantity of water than is necessary for growing animals.

The period of gestation in cows is about 40 weeks.

The lactation period is the period of milking after each calf and it usually lasts for about ten months.

The first milk after calving is called colostrum, and it has a necessary laxative action on the calf's stomach.

Dairy cows are milked three times a day and watered twice a day.

In summer the consumption of water by cattle is greater on account of the greater evaporation from the skin.

2. Answer the following questions:

1. What class of animals does the cow belong to? 2. What farm animals chew the cud? 3. Why is the cow a valuable animal? 4. How many compartments are there in the cow’s stomach? 5. Are enzymes secreted in the first compartment? 6. How long does a period of gestation in the cow last? 7. How long does the lactation period last? 8. In what season do the cattle consume more water?

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]