T/NAASS 028-2022 Ningxia standard prevention and control technology regulations for cow vibrio septicemia in dairy farms
T/NAASS 028-2022 Ningxia standard prevention and control technology regulations for cow vibrio septicemia in dairy farms
Basic Information
Scope
Scope: This document specifies the technical requirements for preventive disinfection, comprehensive diagnosis, vaccination, and control of bovine botulism in large-scale dairy farms in Ningxia. This document is applicable to the prevention and control of bovine botulism in large-scale dairy farms in Ningxia. Main technical content: 3. Terms and definitions The following terms and definitions are applicable to this document. 3.1 Bovine botulism Bovine botulism refers to an acute, fatal infectious disease in cattle caused by different serotypes of Clostridium botulinum. 4. Preventive disinfection 4.1 Disinfection timing Disinfect the stables, grounds, and utensils of large-scale dairy farms at least once a week to prevent bovine botulism. 4.2 Selection of disinfectants Prepare disinfectant solutions strictly according to the instructions for use of disinfectants. It is recommended to prepare and use them immediately. Disinfectants should be replaced regularly, and acid-base disinfectant mixtures are strictly prohibited. Most disinfectants can kill Clostridium botulinum, but its spores are highly resistant and require high-concentration, high-efficiency disinfectants, such as 20% bleaching powder and 3%-5% sodium hydroxide, for disinfection. 4.3 Disinfection targets These include exercise fields, delivery rooms, feeding areas, milking platforms, production area roads, calf islands, and watering stations. 5. Comprehensive diagnosis 5.1 On-site diagnosis Sick cattle do not exhibit any precursor symptoms, develop acutely, and have a short disease course. Some may exhibit sudden lying down and standing up, accompanied by abdominal pain, loss of appetite, or anorexia; significantly weakened rumination or complete cessation; weakness in the limbs, unsteady gait, or lying on the ground; muscle tremors; cold ears and nose; and respiratory difficulties, ultimately leading to death. Based on acute death, a short disease course, and the aforementioned