老湿司午夜爽爽影院榴莲视频-国产欧美日韩电影一区-亚洲成熟毛多妇女av毛片-中文日韩欧美天堂-国产欧美精品av-欧美亚洲成人免费电影-久久精品视频91

One of the main reasons for the low production capacity of China's pig industry is the low delivery rate of sows and the unreasonable use of pig equipment. The main reason for the low delivery rate is the occurrence of routine return feeling in the failure of conception, and the occurrence of unconventional return feeling in the failure of pregnancy. Boar (age, disease, reproductive obstacle, season, times of use, nutrition), sows (lactation days, equal mating days, reproductive obstacle, temperature, mycotoxin), management (mating management, mating time, mating type, etc.) are the main factors affecting the fertility rate of sows. Environment (enclosure, season, temperature, group transfer), feeding (food intake, lack of nutrition, mycotoxin, drinking water) and so on are the main causes of pregnancy failure.
A good biosafety system is the key to disease control. Modern pig production mode forces people to have high requirements for pig health. The period from birth to market is shortened. The number of weaned piglets provided by sows is increased, the conversion rate of meat is increased, and the stress of production is the increase of potential pathogenic opportunities of pigs. Large scale factory, increased production efficiency, reduced management personnel, reduced opportunities to care for pigs, high feeding density, and increased opportunities for disease transmission between pigs. Food safety requirements make people choose less drugs for disease control. To establish a sound disease control and guarantee system, to reduce the incidence of disease to the lowest level or safe control, introduction is the main source of diseases in pig farms, we should create a mutually closed environment for pigs.
Reasonable immunization is an important means of disease control. First of all, we should select the appropriate vaccine and formulate the appropriate immunization procedures for our factory. Immune detection is an essential procedure. Establish a sound immunization file, and pay close attention to the changes in the transportation and preservation of vaccines. At the same time, we should also pay attention to the disinfection of the environment, and cultivate the concept of comprehensive, full-time, thorough and blank disinfection for employees. Disinfection must not be a mere formality. The focus of disease control is environmental control. First of all, we should reduce the concentration of pathogen dust in the environment, eliminate and dilute the harmful gases excluded by pigs, ensure the entry of fresh air, cool and exhaust the humidity ventilation facilities.
Management is not an empty word. Without management, there will be many devastating infections. Problems such as supercooling, overheating, starvation and ventilation will transform latent infections into clinical diseases. Digital management will solve the problems of the day. Quality education and technical training will be provided for the employees of the pig farm.