Antibiotics have been used in animal feed for about 50 years eve

Benefits of Antibiotic use in Animal Feed

The benefits of antibiotics in animal feed include increasing efficiency and growth rate, treating clinically sick animals and preventing or reducing the incidence of infectious disease. By far the major use of antibiotics among these, however, is increased efficiency, i.e. a more efficient conversion of feed to animal products, and an improved growth rate. In chicken feed, for example, tetracycline and penicillin show substantial improvement in egg production, feed efficiency and hatchability, but no significant effect on mortality. Chlorotetracycline, oxytetracyclin and penicillin also show an improved growth rate, but little effect on mortality. Antibiotics in animal feed, in general, are used regularly for increased efficiency and growth rate than to combat specific diseases.

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• 不得病的鸡长的快。 -陌上花开缓缓行- ♀ (24 bytes) () 07/21/2014 postreply 11:33:42

• 我本来也这么想，但是看文章最后一句话。。。 -破烂熊- ♀ (0 bytes) () 07/21/2014 postreply 11:38:26

• 那这种作用的机理到底是什么呢。 -陌上花开缓缓行- ♀ (0 bytes) () 07/21/2014 postreply 11:47:48

• 不知道。但是如果说它能催生我觉得很难理解。 -破烂熊- ♀ (0 bytes) () 07/21/2014 postreply 12:13:29

• 提高营养的吸收率，就可以用更少的饲料更短的时间养更肥的鸡 -高兴就哭- ♀ (0 bytes) () 07/21/2014 postreply 13:11:32