1, pay attention to the physiological characteristics of broilers Broilers have no sweat glands, antipyretic analgesics are not ideal for heat stress; broilers lack adequate cholinesterase stocks and are very sensitive to anticholinergic drugs, so it is best to use levamisole for broiler nematodes; broiler kidneys The ball structure is simple, the effective filtration area is small, and it is very sensitive to gentamycin and streptomycin excreted by the kidney after intramuscular injection; chickens have rich air bags, and the aerosol administration effect is good. 2, pay attention to synergy and antagonism In the feeding process of broilers, a synergistic combination of drugs can increase the effectiveness of prevention and treatment. Drugs with antagonistic effects can reduce drug efficacy and must be used staggered for a certain period of time. Such as norfloxacin, oxytetracycline calcium and chlortetracycline, salinomycin and monensin have antagonistic effects. 3, pay attention to master the indications Each drug has its own intrinsic structure and a certain scope of action. The antibacterial spectrum of various drugs should be clearly defined. Drugs should be selected according to the principles of high efficacy, small side effects, safety, low cost, and reliable source, and the pathogen should be selected according to clinical symptoms. Microbial highly sensitive drugs, to achieve the right medicine, to avoid blindness. Abuse of antibiotics is not allowed, and in particular, broad spectrum antibiotics cannot be abused. Antibiotics have no effect on nervous system symptoms. Most of the neurological symptoms are brain damage. Most of the antibiotics cannot enter the brain through the blood-brain barrier. 4, pay attention to drug residues The withdrawal period of broiler chickens prior to listing should be determined according to the pharmacokinetics of various drugs. Short-residue drugs should be used as far as possible. All medicines should be stopped 7 days before slaughter to avoid drug residues and endanger public health. Be cautious about using more toxic drugs and avoid toxic side effects, such as olaquindox. Benzaldehyde,Cinnamaldehyde 5-fluorouracil Solution,Fluorouracil Vs Imiquimod,Uracil Medication Shandong Chenyi Environmental Protection Technology Co.,Ltd , https://www.chenyichemistry.com