Читать книгу Farm Animal Medicine and Surgery - Graham R Duncanson - Страница 88

In commercial situations, antimicrobials are initially supplied to poultry in the drinking water and then, if required, the same antimicrobial can be included in the food. In backyard flocks and individual birds, injectable antimicrobials licensed for other stock can be used under the cascade principle. Hence, the ambulatory practitioner does not normally need to carry specifically licensed poultry products.