Antibiotics are used in meat production. These are fed to animals to protect them from various infections. Antibiotics will stay in the blood supply of the animal. When the animal is slaughtered, there are trace amounts of these antibiotics which remain. These are not only affecting the success of various antibiotics, but they can also result in several conditions.
There are several reasons why antibiotics are injected in animals. These are used to help fight disease. If the animal is sick, then the antibiotics are used to kill the bacteria causing the problem. This is used to prevent the loss of animals, which would be an added cost to the farmer.
Antibiotics are also used as a prevention measure. Many animals are injected with antibiotics to help prevent various diseases which are floating around. Sometimes antibiotics are used in low quantities to increase the growth rate. This is common in poultry, swine and cattle farming. Here are some harmful antibiotics found in food: