Bird flu should not be taken lightly in summer. H7N9 influenza epidemic in China
Release time:
Jun 14,2018
On May 22, laying hens raised by a farmer in Liaozhong District, Shenyang City, Liaoning Province developed symptoms of suspected avian influenza, with 11000 cases and 9000 deaths.
On May 24, Liaoning Provincial Animal Disease Prevention and Control Center diagnosed a suspected bird flu epidemic.
On May 31, confirmed by the National Avian Influenza Reference Laboratory, the outbreak was H7N9 influenza.
After the outbreak of the epidemic, the local area has done a good job in dealing with the epidemic in accordance with the relevant plans and technical specifications for prevention and control. 8000 chickens and chickens of the same flock have been culled, and all chickens in the epidemic site have been treated harmlessly. At present, the epidemic has been effectively controlled.
More Attention to Prevention and Control of Poultry Avian Influenza in High Temperature Season
The old concept believes that only the cold season in winter and spring is the high incidence period of avian influenza. The temperature in summer is high, and the virus is not easy to survive and spread in the environment. In addition, the poultry house is well ventilated, and the possibility of avian influenza is unlikely. Therefore, many farmers often neglect the effective prevention and control of avian influenza in poultry flocks during the high temperature season, coupled with the changes in poultry breeding methods in recent years (from open and semi-open to fully closed) and the frequent mutation of avian influenza viruses., And the decline in the resistance of poultry flocks caused by high temperature and high humidity stress, etc., the phenomenon of avian influenza in poultry flocks during high temperature seasons is often seen, and the frequency is increasing.
To do a good job in the prevention and control of avian influenza in poultry during the high temperature season, the specific measures are as follows:
Strengthen the management of poultry houses, appropriately reduce the feeding density, maintain good ventilation, do a good job of wet curtain cooling and spray cooling, timely remove the feces in the house, and maintain a good environment in the house. In closed farms, backup generators should also be prepared to prevent a sudden power outage from causing a large number of deaths of poultry flocks due to heat.
It is strictly forbidden to feed spoiled and moldy feed, keep the feed fresh and nutritionally comprehensive, and appropriately increase VC or compound multi-dimensional and other drugs to reduce stress and improve resistance such as astragalus polysaccharide in feed or drinking water, so as to ensure the physical strength of poultry flocks.
According to the immunization program and antibody monitoring, real-time immunization and strengthening of H5 and H9 subtype vaccine immunization, farms should purchase H5 H7 subtype bivalent avian influenza vaccine to do a good job of immunization against different current avian influenza epidemic strains.
Strengthen the biosecurity measures of poultry farms, strictly prohibit the entry and exit of foreign personnel, especially poultry and egg traffickers and vehicles. The entry and exit of personnel in this field should be strictly disinfected, and regularly carry out sanitary disinfection and deratization of the surrounding environment of the farm and poultry houses. Insecticide and other work, as far as possible to eliminate the source of infection and cut off the route of transmission.
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