NEW! The proposed regulation changes are anticipated to go into effect April 1, 2017. As of that date, bulls, when trichomonosis tested, will require both official individual ID AND a “Trichomonosis approved color-coded tag”. This tamper evident California trichomonosis tag is available to California trichomonosis approved veterinarians from the MWI Veterinary Supply Company (1-800-824-3703). The California trichomonosis tag program will follow the same year (September 1 to August 31) and color schedule (white for 2016-17, then cycling through orange, blue, yellow, green) as used by neighboring states. The tags are required to be removed and replaced with current year tags during the trichomonosis testing process. The individual official ID of each bull tested for trichomonosis must be recorded and accompany the trichomonosis sample to the laboratory.
Notice: Animal Disease Traceability Proposed Rule
The Department of Food and Agriculture (Department), Animal Health Branch, proposes various changes to Division 2 of Title 3 of the California Code of Regulations. The proposal will implement specified requirements (cattle and bison) of the United States Department of Agriculture’s Animal Disease Traceability rule (9 CFR Part 86), which establishes official identification and documentation requirements for the traceability of livestock moving between all states, and modifies those requirements as necessary to facilitate movement and husbandry practices unique to California’s beef and dairy cattle industries.
This proposal additionally relocates existing importation, movement and identification regulations for cattle and bison pursuant to specific livestock diseases (bovine brucellosis and tuberculosis, and trichomonosis) into those proposed new animal disease traceability requirements; and deletes outdated requirements, replacing them with updated requirements to reflect current industry practices to enhance existing prevention, control and eradication disease programs. For additional information visit:
Summary of Proposed Regulations Changes – Animal Disease Traceability
Summary of Proposed Regulations Changes – Trichomonosis Program
What is trichomonosis?
Bovine trichomonosis (aka trichomoniasis or trich) is a venereal disease of cattle caused by the protozoa Tritrichomonas foetus. The organism lives in the folds of the prepuce and internal sheath in bulls, and colonizes the vagina, cervix, uterus and oviducts of cows. It causes abortion and extended calving seasons. Bulls will remain persistently infected and spread infection from cow to cow during natural service; however, cows generally clear infection after two to three heat cycles. Bulls over four years old are typically the main reservoir of infection in a herd; this is because older bulls often have deeper preputial folds (crypts), making for a more hospitable environment for trich to live. more...
Certain herd management practices are risk factors for infection; commingled grazing or fence-line contact with other herds is one documented risk factor. Control of T. foetus in an infected herd includes testing bulls and culling those infected. Although use of younger bulls has been recommended as a control strategy because they have a lower prevalence of infection than older bulls, such use will not eliminate the possibility of infection. Artificial insemination is considered the classic method for controlling venereal diseases of cattle. However, this is often impractical in range cattle operations due to lack of facilities, expertise or management practices. Additionally, annual pregnancy testing and culling of non-pregnant cows can help control herd infection. Also, vaccination of females can decrease duration and severity of infection. If exposure to other risk factors cannot be avoided, vaccination is believed to help reduce economic loss.
Trichomonosis can be economically devastating to herds affected. Costs are often insidious and difficult to quantify. Economic losses due to T. foetus infection can exceed 22% of expected annual income, which can exponentially increase with increasing prevalence (number of bulls infected in a herd). Losses to cow-calf herds include cost of replacement bulls, loss of genetic potential due to culling, increased days-to-conception, and subsequently lighter weaning weights.
Trichomonosis is a reportable disease. Veterinarians, laboratories, or owners must report cases of trichomonosis to CDFA within two days of diagnosis. Negative trichomonosis tests must be reported to CDFA within 30 days.
CDFA personnel investigate trichomonosis cases, notify owners of potentially exposed cattle and quarantine bulls in infected and exposed herds. Infected bulls will be quarantined to their facility and may ONLY BE SOLD FOR SLAUGHTER. Additionally, one negative real-time PCR test or three negative culture tests at owner’s expense are required for all herdmate bulls, with no less than seven days and no more than 28 days between each test. Owners of exposed cattle will be notified by CDFA and are required to test their bulls once, at their expense.
California Trichomonosis Control Program
Trichomonosis is a serious economic threat to California’s cattle herds. The California Cattlemen’s Association and the Western United Dairymen sponsored legislation to develop a trichomonosis control program. In partnership with the livestock industry, the California Department of Food and Agriculture (CDFA) developed a program that became effective September 21, 2003. At the request of the cattle industry, the control program was strengthened with new laws that became effective October 5, 2007 and with the addition of the real time PCR test in March 2011.
For Veterinarians AND LABS
Sample quality and testing are critical for diagnosing and eradicating trichomonosis. Law requires training and approval by CDFA for veterinarians collecting trichomonosis samples, and for laboratories processing samples.
California licensed, category II USDA accredited veterinarians can view a training video to become approved for Trichomonosis sample collection in California. The training video can be viewed using the link below, and Certificates of Completion following training should be returned to your Animal Health District Office. A DVD copy can be made available upon request.
Bovine Trichomonosis: Bull Sampling and Diagnosis
Laboratories must go through a training session at the California Animal Health and Food Safety Laboratory (CAHFS) to be approved to read trichomonosis samples. Laboratories are commonly private veterinary clinics, but can be other private labs. CDFA requires that at least one person in the lab/clinic be trained through a short session at CAHFS; training should be repeated if that person leaves the lab/clinic. Veterinarians/clinics may contact their Animal Health Branch District Office to complete the scheduling form. CDFA will then contact the individual to confirm training date and location.
For Public Sale Yards
- Determining cattle age by their teeth
- Sign for Sale Yards
- Brand Inspection letter re: application of green back tags
Bulls 18 months of age and older without a negative trichomonosis test must be sold for slaughter only. Packers can purchase these bulls for immediate slaughter. Alternatively, these bulls can be sold to dealers who are licensed with California and/or registered with Packers and Stockyards as federally approved dealers; all dealers must have an agreement with CDFA before purchasing untested bulls for slaughter.
- Approved Slaughter Channel Agreement
- California Dealer License Application (Marketing Enforcement Form 28-003)
- Listing of California Livestock Dealers
Your local Animal Health Branch District Office is available to provide guidance to producers and veterinarians in all areas of California's Trichomonosis Program. District offices will be the primary point of contact for investigating positive trichomonosis test results.