求以下段落的英文摘要(急)

Chicken colibacillosis by pathogenic Escherichia coli strains caused by a number of acute or chronic bacterial sexually transmitted diseases. The disease can occur throughout the year, because of the complexity of starting antigen, serotype diversity and complexity of clinical disease, often associated with viral and bacterial diseases and other complicated, or following the law, to the poultry industry made considerable harm. The disease on the poultry industry an effective air defense of the healthy development of very important antibiotics reasonable and effective use, control and prevention of disease is an important aspect. Over the years a large number of antibacterial drug use has led to the emergence of many drug-resistant strains, in order to effectively combat this disease must be kept regularly informed of its various degree of sensitivity of antibiotics in order to guide the rational clinical use of antimicrobial agents. In some areas of the main areas of the separation