Recent laying hens should do a good job in the prevention of colds and respiratory diseases
Release time:
Jun 14,2018
Recently, respiratory tract infection disease more, suspected cold cases accounted for a certain proportion. Many serious cases show that the sick chicken is acute and the casualty rate is very high. Usually manifested as snoring, part of the cough is obvious, high fever, depressed spirit, motionless; autopsy shows that the follicle is severely deformed, lung and pancreatic bleeding is obvious. Many cases show that there is no time to treat direct death, resulting in greater economic losses. Friends of the same trade who do technology also responded that there have been suspected influenza epidemics in many places recently. Most of the affected chickens were not immunized with H5 H7 vaccine in time or only once.
Winter is the season of high incidence of respiratory diseases and influenza. Especially recently, the temperature has dropped sharply and the temperature has changed greatly. The external environment and the internal environment of the chicken house are the causes of respiratory diseases that cannot be ignored. And the occurrence of this suspected influenza is mainly caused by inadequate immunity. Affected by the first half of the market, the current stock of chicken in the proportion of old chicken is relatively high. And the late immune is not timely, resulting in the virus can not resist.
Therefore, while doing a good job in feeding and management, we should also pay attention to whether the chickens have respiratory symptoms and prevent them in time. In addition, a reasonable immunization program should be formulated, and antibody monitoring should be carried out regularly. According to the antibody results, vaccines matching the current epidemic strains should be selected for timely vaccination. And once the chickens are found to be abnormal, please consult a professional veterinarian in time to give a reasonable treatment plan to ensure the health of the chickens and reduce losses.
The incidence of H5 subtype avian influenza is less this year, but it cannot be ignored. The H5 subtype of avian influenza in China is mainly H5N6 serotype, which has been highly pathogenic to poultry and has great harm to the poultry industry in China. The results of the Center for Animal Disease Control and Prevention show that due to the use of Re-6 Re-8 vaccine and the epidemic trend of H5 virus itself, the overall virus pollution of H5 is less. However, because the H5 subtype influenza has always shown the characteristics of high pathogenicity to poultry, I hope that friends in the breeding industry will never relax their immunity to H5.
Professor Bi of South China Agricultural University believes that the H5 subtype avian influenza currently prevalent in the north has changed from the previous Re-6 vaccine corresponding strain to the Re-10 vaccine corresponding strain, and the prevention and control of H5 in the north must be added with Re-10 vaccine.
Generally speaking, prevention is greater than treatment. I hope that farmers will do a good job in the prevention of common diseases and improve the economic benefits of breeding under the current good egg price market.
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