I lease bulls: After a leased bull was returned, he tested positive for trich; do I need to test all my bulls?
It depends. If the leased bull tested negative on an official trichomonosis test just prior to leaving your premises, did not have any contact with other breeding age cattle following that test until arriving at the premises he was leased to, and when he arrived back at your premises he was quarantined away from all bulls and cows until the official positive test result was obtained, then testing of all other bulls you have available for lease should not be necessary. CDFA Animal Health Branch personnel investigate all positive trichomonosis test results. As part of this investigation, personnel will want to know about all locations positive bulls have been during the past 12 months and all potential contacts with other cattle during that 12 month period, including herdmates and neighboring herds. Your Animal Health Branch District Office should be contacted if you have specific questions.
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