الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
 |  | from | 106 |  |  |
| | | from | 106 | | |
Abstract
The public health authorities in several contuies have established regulations for the veterinary use of drugs in food producing animals and poultry. 1- In vitro: several methods were used for the determination of tetracycline group of antibiotics . These methods were a gar diffusion test, high voltage electrophoresis and