材料
Poultry Production 家禽生产
Large-scale intensive meat (1) poultry production is a waste of food resources. This is (2) more protein has to be fed to animals (3) the form of vegetable matter than can ever (4) recovered in the form of meat. Much of the food value (5) lost in the animal´s process of digestion and cell replacement. (6) the case of chicken, neither can one eat feathers, blood, feet (7) head. In all, only about 44% of the live animal fits (8) be eaten as meat.
This means one (9) to feed approximately 9-10 times as (10) food value to the animal than one can consume (11) the carcass. As a system (12) feeding the hungry, the effects can prove disastrous. (13) times of crisis, grain is the food of life.
(14) the huge increase in poultry production (15) Asia and Africa continues. Normally British or US firms are involved. (16) instance, an American based multinational company (17) this year announced its involvement in projects (18) several African countries. Britain´s largest suppliers of chickens, Ross Breeders, (19) also involved in projects all (20) the world.
第(4)空填()。
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