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This book is the training textbook of "e;Green Certificate Engineering"e;. Taking the basic knowledge of animal and poultry diseases, the immunology and inoculation knowledge skills, the knowledge and skills of disinfection, the knowledge and skills of using drugs for animals, relevant laws and regulations and setting up the epidemic prevention system. This book also introduces how to carry out common disease prevention and treatment of rural animals and poultry in accordance with the law and scientifically, which is helpful to the prevention and treatment of common rural animal and poultry diseases.