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1. Read and translate the text. The poultry

Poultry are kept for flesh and eggs. They include hens with chickens, turkeys with polls, cocks, ducks with duck­lings and geese with goslings.

The breeds of poultry are numerous.

Digestion in the Fowl. As there are no teeth in the month of the fowl, the food is swallowed whole and passes into the crop, which is a dilated portion of the gullet. It remains there for a short interval during which the fluids of the crop exert a softe­ning influence and some digestion of starch.

The food then enters the stomach, which secretes di­gestive juices on to it, and, without much delay in this compartment, it is passed on to the gizzard which is a ve­ry thick-walled organ. It squeezes the contents into a very fine state of subdivision by the rhythmic contraction movement. The macerated food material, together with the sto­mach juices, pass into the small intestine where digestive juices – from the liver, pancreas and intestinal glands – are poured on it, and digestion proceeds rapidly.

A curious feature of the large intestine is the division of the caecum into two parts, each of which is a long blind tube.

As in other animals, absorption of the digested food goes on in the small and large intestine, and the faeces are evacuated at intervals. The heart of the fowl beats quick­er and respiration is more rapid.

The fowl is able to digest its food and absorb the food nutrients much more rapidly than other farm stock.

2. Answer the following questions:

1. What are poultry kept for? 2. Are there teeth in the fowl’s mouth? 3. What is a curious feature of the large intestine of the fowl? 4. Is the fowl able to digest its food more rapidly than other farm stock? 5. Where does absorp­tion of the digested food go on? 6. How does the heart of the fowl beat?

3. Fill in the blanks with the required words:

1. The heart of the fowl beats ... and respiration is more ... . 2. The fowl is ... to digest its food slowly. 3. The gizzard is a very ... organ. 4. The fluids of the crop exert ... influence on the food. 5. There are ... breeds of poultry.

Word List b

  1. canal

- канал, проход

alimentary canal

- пищеварительный тракт

  1. cloaca

- клоака, клоакальная полость

  1. esophagus

- пищевод

  1. gravel

- мочевой песок, гравий

  1. grit

- камешки (в желудке у птицы)

  1. junction

- соединение

  1. originate

- происходить, порождать, производить

origination

- начало, происхождение

origin

- происхождение, источник

  1. pharynx

- глотка, зев

  1. pocket

- полость, мешок

  1. proventriculus

- преджелудок, железистый желудок (у птиц)

  1. sac

- мешок, мешочек

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