The colloidal gold test card is a simple and fast detection tool that can be performed on site. Farmers can collect blood samples from cattle and sheep under the guidance of veterinarians and use the Brucella rapid test card for testing. Results are usually obtained within 10-15 minutes. This method is simple to operate and suitable for rapid on-site screening, but the accuracy may not be as good as laboratory testing.

ELISA testing is a serological test method that requires samples to be sent to the laboratory for testing. This method can provide more accurate results, but requires professional laboratory equipment and operators. It is suitable for scenarios that require high-precision testing, but is not suitable for rapid on-site testing.