(1) "Bovine trichomoniasis" is a sexually transmitted disease of cattle caused by the parasitic
protozoan organism Tritrichomonas fetus.
(2) "The Department" is the Oregon Department of Agriculture (ODA).
(3) "Virgin bull" is a sexually intact male bovine less than 12 months of age that is certified by
the owner/manager as having had no potential breeding contact with females.
(4) "Exposed herds" are cattle herds which have had, within twelve months, direct commingling
or cross fence contact with test-positive herd during a time of potential breeding activity.
(5) "Permanent Identification" is a steel alphanumeric ear tag provided as official identification
to accredited veterinarians, breed registry tattoos, or other means of identification established by
the Department after review by the Trichomoniasis Advisory Panel.
(6) "Herd" is a group of cattle managed as a separate unit and not mixed with other cattle under
the same ownership.
(7) "Test positive herd" is a defined herd of cattle in which a diagnosis of trichomoniasis has
been made by a certified, licensed veterinarian.
(8) “Trich-year” is the period from September 1st to August 31st of any given year.
In addition to an import permit and other disease control requirements, the following
requirements must be met regarding bovine trichomoniasis.
(1) Bulls 12 months of age and over shall have all of the following:
(a) Negative trichomoniasis test results within 60 days proceeding entry into Oregon performed
by a certified veterinarian and
(b) A Certificate of Veterinary Inspection that states:
(i) The bulls represented on this Certificate of Veterinary Inspection have been tested for and
found to be negative for trichomoniasis pursuant to subsection (1)(a) above and have been
confined and have not had sexual contact with females since their last negative test; and
(ii) Trichomoniasis has not been diagnosed in the herd of origin within the past 24 months.
(2) Any bull originating from a herd in which trichomoniasis has been diagnosed within the past
24 months shall have all of the following:
(a) Three (3) consecutive negative trichomoniasis tests conducted at least seven (7) days apart,
but not more than 28 days apart, with the last test conducted within 60 days proceeding entry;
(b) A Certificate of Veterinary Inspection that states that the requirements, set forth in subsection
(2)(a) above, have been met.
(3) All breeding bulls, 12 months of age and over, entering Oregon as part of a herd that has an
authorized Out-of-State Grazing permit pursuant to section 603-011-0264, do not require a
Certificate of Veterinary Inspection but are required to have one negative trichomoniasis test
within the 12 months proceeding entry. However, all bulls from a herd in which trichomoniasis
has been diagnosed within the past 24 months must comply with (2)(a) above to qualify the herd
for an Out-of-State Grazing permit. All Out-of-State Grazing permits shall include an attached
copy of the test record, that includes the permanent identification number of the bull(s) tested
and the name and telephone number of the testing certified veterinarian.
(4) Bulls may be exempt from the trichomoniasis test requirements for entry into Oregon under
any one or all of the following conditions:
(a) Used solely for exhibition purposes and remain under confinement at the location of the
exhibition without having access to or allowed to commingle with sexually mature female cattle;
(b) Used solely for artificial insemination using semen extension and preservation protocols that
meet Certified Semen Services standards; or
(c) Consigned directly to slaughter without unloading before the arrival at the slaughter plant.
(1) The Department shall establish a Bovine Trichomoniasis Advisory Panel, whose membership
(a) Five voting members who are representatives of the cattle industry, recommended by the
Animal Health Committee of the Oregon Cattlemen's Association; and
(b) Four non-voting advisory members who are; the OSU Extension Veterinarian, two practicing
veterinarians appointed by the Advisory Panel, and one representative of the office of the ODA
(2) Duties of the Advisory Board shall be to:
(a) Advise the Department on management of issues related to the program; and
(b) Advise the Department on preferred policies and processes for resolution of disputes related
to the program.
(3) Certified veterinarians, as described in 603-011-0630, must report a positive test result of
Tritrichomonas fetus to the Department on a form supplied by the Department within 48 hours of
determining the result.
(4) In response to a positive bovine trichomoniasis test the Department shall:
(a) Conduct an investigation to identify herds that were potentially exposed to the infected herd.
(b) Require that any further bovine trichomoniasis testing be performed by a certified person,
and accept the results of a retest by a certified person, if the original test was performed by a
non-certified person; and
(c) Require permanent identification and testing of all bulls, excepting virgin bulls, in the test-
positive herd and exposed herds.
(5) All bulls in herds required to be tested must be withdrawn from breeding contact and tested
between 10 and 90 days after withdrawal.
(6) All bulls in test-positive herds must each have three consecutive negative test results with
each test event separated by at least seven days and no more than 28 days, after initial diagnosis
is made. Bulls that have a positive test result shall be considered infected and be handled as
described in 603-011-0620(8).
(a) Test-positive herds with valid Out-of–State Grazing Permit will have all bulls restricted in
place until three consecutive negative test results are complete with each test event separated by
at least seven days but no more than 28 days. Bulls that have a positive test result shall be
considered infected and be handled as described in 603-011-0620(8); or
(b) Return all herdmate bulls from Out-of-State Grazing Permit affected herds to their state of
origin to complete three negative consecutive trichomoniasis tests as described in (6) above. The
Department shall release the herdmate bulls from restriction when the State Veterinarian from
the state of origin notifies the Department that the required testing is complete. Test-positive
bulls shall not return.
(c) Out-of-State Grazing Permit herds exposed to trichomoniasis will have all bulls restricted in
place until one negative trichomoniasis test is complete. Any cattle determined to be infected
will be restricted and the herd status will be changed to an test-positive herd and subject to the
requirements of subsection (6)(a) or (b); or
(d) Return all herdmate bulls to their state of origin to complete one negative trichomoniasis
test. The Department shall release the herdmate bulls from restriction when the State
Veterinarian from the state of origin notifies the Department that the required testing is complete.
Any bull that has a positive test result shall cause the herd to be classified as test-positive and
treated as in (6)(i) or (ii).
(7) All bulls from a test-positive herd must be re-tested every trich-year until every remaining
bull tests negative during the same test period.
(a) All bulls from a test-positive herd must be re-tested before February 1 of the following year.
(b) All bulls removed or culled from a test-positive herd are to be tested before removal or
(8) Test-positive bulls shall be held under quarantine separate and apart from other cattle or shall
comply with one of the following:
(a) Test-positive bulls may be retested and, if found negative on three consecutive tests that are
separated by at least seven days, may be considered test-negative and released from quarantine;
(b) Test-positive bulls moving into feeding channels shall be castrated before moving from the
(c) Test-positive bulls moving out of the infected herd into commercial slaughter-marketing
channels, including collection points, shall be identified before moving with an "S" brand
applied to both sides of the tailhead and shall move only to slaughter under authority of a VS
Form 1-27 Permit for Movement of Restricted Animals; or
(d)Test-positive bulls moving out of the infected herd directly to slaughter shall do so with:
(i) A VS Form 1-27 Permit for Movement of Restricted Animals; and
(ii) Prior notification of the State Veterinarian; and
(iii) Record of their permanent identification on the VS Form 1-27 under which authority they
(9) Failure to comply with the above provisions for response to a positive bovine trichomoniasis
test shall result in quarantine of all cattle in the non-compliant herd under provisions of ORS
(10) The Department may waive the mandatory testing and quarantine provisions of this rule if:
(a) The owner or manager demonstrates that a herd program for control of bovine trichomoniasis
which the Department determines, after consultation with the Advisory Panel, to be adequate
under the circumstances, is in place and operational at time of diagnosis; or
(b) The owners or managers of the test positive herd and of all exposed herds agree to not test, or
agree to pursue a control program of their own design, and the Department determines that such
action is adequate under the circumstances.