1. A growth promoter used in Peru in poultry and pork production is sulfate colistin, an belonging to the 1group. 
2. Salmonellosis is an important disease in poultry and pork production, because of the implications that arise in Public Health, the restrictions on the marketing of products from infected farms and the impact on health programs of farms. The most common clinical manifestation of this disease is enteritis, which is often presented as a bloody or profuse watery diarrhea accompanied by fever, but you can see a broad spectrum of clinical symptoms, such as acute septicemia,abortion, arthritis, necrosis on extremities and respiratory disease.