8 CCR 1201-19 Part 10 - Trichomoniasis
10.1. Definitions
10.1.1. "Acceptable Specimen" means a
specimen determined satisfactory for diagnostic testing by the approved
laboratory, including complete documentation.
10.1.2. "Approved Laboratory" means any
laboratory designated and approved by the State Veterinarian for testing
T. fetus samples.
10.1.3. "Bovine" means any sexually intact
male or female animal of the genus Bos.
10.1.4. "Colorado Commuter Permit" means a
permit issued by the Colorado State Veterinarian's Office to Colorado livestock
producers who use pasture lands and other livestock operations in one or more
states that are contiguous to Colorado.
10.1.5. "Commingle" means having both male
and female bovines, regardless of ownership, in the same enclosure or pasture
where such animals would have a reasonable opportunity for sexual
contact.
10.1.6. "Complete Herd
Test" means an official T. fetus test of all breeding-age
bulls as determined by the State Veterinarian.
10.1.7. "Directly to Slaughter" means
transporting an animal to a slaughter plant after loading into a transit device
without unloading prior to arrival at the destination slaughter
plant.
10.1.8. "Herd" means a group
of bovines (male and female) that have commingled for any period of time during
the last 12 months.
10.1.9.
"T. fetus PCR test (Polymerase Chain Reaction)" means a method
approved by the State Veterinarian for the testing of samples collected by an
accredited veterinarian to detect, through in vitro amplification, the presence
of T. fetus DNA.
10.1.10. "Official Colorado Negative
T. fetus Tag" means a tag provided by the Colorado Department
of Agriculture to accredited veterinarians which is applied to bulls that test
negative for T. fetus using official testing
methods.
10.1.11. "Positive
T. fetus Bull" means a bull that has had a positive T.
fetus test.
10.1.12.
"Positive T. fetus Herd" means the group of all bovines that
have commingled and in which group any bovine (male or female) has had a
positive diagnosis for T. fetus.
10.1.13. "Negative T. fetus
Bull" means a bull that qualifies by one of the following:
10.1.13.1. Originates from a herd not known
to be infected, has tested negative to an official test, and has been isolated
from females since that test;
10.1.13.2. Originates from a positive herd
but has had a series of two negative T. fetus PCR tests at intervals of at
least one week and continues to be isolated from females;
10.1.13.3. Has met current Colorado import
requirements; or
10.1.13.4.
Originates from a positive herd, has been isolated from females, and has had
two negative T. fetus PCR tests at least one week apart.
10.1.14. "Regulatory Veterinarian" means the
State Veterinarian or his or her designee. This may be a state or USDA employed
veterinarian or any accredited veterinarian holding a current state license to
practice veterinary medicine.
10.1.15. "Suspect T. fetus
Bull" means a bull from a positive T. fetus herd that has not
yet had two consecutive negative T. fetus PCR tests.
10.1.16. "Trichomonas fetus
(or T. fetus)" means a contagious venereal protozoan parasite
disease of the Tritrichomonas foetus species that causes
infertility, pyometra, abortions, and reproductive inefficiency in female
bovine.
10.1.17. "Unacceptable
Sample" means a sample that is deemed not diagnostic by the approved testing
laboratory.
10.2.
Intrastate Breeding bulls
10.2.1. All bulls
12 months and older must have a negative T. fetus PCR test
within 60 days prior to change of ownership or change of possession under lease
or loan. Bulls shall not be exposed to females at the new premises until the
results of the test are known.
10.2.2. Any bull with a positive test shall
be immediately quarantined. The quarantine shall be in effect until the bull is
sent to slaughter. The positive T. fetus bull's herd of origin
will be placed under a hold order. The hold or quarantine order will be
released in accordance with the regulatory section of this
rule.
10.3. Regulatory
Action
10.3.1. Public Grazing & Grazing
Associations
10.3.1.1. All breeding bulls
commingling in grazing associations, regardless of whether public or private
associations, or on public lands, regardless if on private or multiple user
permits, shall have the official T. fetus PCR test conducted
annually. Negative bulls shall be identified as in Part 10.5.1 below.
10.3.1.1.1. If any bull is found positive,
all bulls that have an epidemiological link to the positive bull, regardless of
owner, manager, or operator, will be required to have two consecutive negative
T. fetus PCR tests and be isolated under quarantine prior to
turn out time.
10.3.1.1.2. Any
stray bull located on public grazing lands or in a grazing association shall be
subject to the management procedures set forth in 10.4.5.
10.3.2. Positive T.
fetus Bull & Herd
10.3.2.1. Any
confirmed T. fetus positive bovine and its herd (as defined by
state animal health officials) shall immediately be placed under quarantine,
and will remain under quarantine as follows:
10.3.2.1.1. Positive T.
fetus bulls shall be identified with an official Positive T.
fetus test tag by an accredited veterinarian within 5 days of
diagnosis.
10.3.2.1.2. Positive
T. fetus bulls shall be quarantined then sent directly to
slaughter or to livestock market for slaughter only or to an Approved
Feedlot.
10.3.2.1.3. All other
bulls in a positive T. fetus herd shall remain quarantined
until they have tested negative to two consecutive T. fetus
PCR tests at least one week apart. The initial negative T.
fetus PCR test is included in the series of negative tests
required.
10.3.3. Reproductive Bovine Females from a
Positive T. fetus Herd
10.3.3.1. Females over 12 months of age (not
known to be virgin heifers) from a positive T. fetus herd may
be sold directly to slaughter or quarantined on the premises of origin.
Individual females will be released from quarantine when there are two
consecutive negative T. fetus PCR tests of the entire bull
population and the cow(s) has a calf at side (with no exposure to other than
known negative T. fetus bulls since parturition), has
documented 120 days of sexual isolation, or is determined by an accredited
veterinarian to be at least 120 days pregnant.
10.3.3.2. Heifers known to be virgin at the
time of turnout, or heifers exposed only to known negative T.
fetus bulls and not yet 120 days pregnant, may remain within the
herd.
10.3.3.3. Open females shall
be sold to slaughter, moved to an Approved Feedlot, or held in isolation from
all bulls for 120 days. Any female sold to slaughter through a livestock market
shall be identified with an official Colorado positive T.
fetus tag during the quarantine period.
10.3.3.4. Breeding by artificial insemination
with semen from a known negative bull is allowed during the quarantine
period.
10.3.4.
Management Procedures of T. fetus Positive herds
10.3.4.1. The State Veterinarian may require
additional testing of bulls, pregnancy testing of females, segregation of
cattle within a herd, and may hold or quarantine a herd until the owner,
lessor, or manager of the herd has complied with any additional requirements
set forth by the State Veterinarian.
10.3.5. Management Procedures Regarding Stray
Bulls
10.3.5.1. Any stray bull without a
current negative Colorado Trich Tag found on public or private land, from a
known or unknown herd of origin, may be confined and placed under a hold order
until the bull has one or more T. fetus PCR test(s) conducted.
The test(s) shall be the responsibility of the bull's owner. The conditions of
the hold or quarantine orders and number of tests will be determined by the
State Veterinarian.
10.4. Identification
10.4.1. All bulls tested for T.
fetus, whether for official or unofficial testing, must be officially
identified.
10.4.2. At the time of
testing, an accredited veterinarian must:
10.4.2.1. Record the bull's official
identification device on the T. fetus test submission
form;
10.4.2.2. Apply an official
Colorado T. fetus tag to the tested bull; and
10.4.2.3. Record the official Colorado
T. fetus tag number of the tested bull on the test submission
form.
10.4.3. Bulls that
are determined T. fetus PCR test negative shall be identified
with an official Colorado negative T. fetus tag. Tags will be
supplied by the Colorado Department of Agriculture and be assigned to
accredited veterinarians. The official negative T. fetus tag
color shall be changed annually.
10.4.4. Bulls identified pending negative
test results shall be isolated from all females until the test result is
reported negative.
10.4.5. Positive
T. fetus bulls shall be identified with an official red
positive T. fetus tag supplied by the Colorado Department of
Agriculture.
10.4.6. Any
quarantined cows moved from the original premises of quarantine shall be
identified with an official red positive T. fetus ear
tag.
10.5. Specimen
Collection Facilities
10.5.1. The bull's
owner must provide adequate corrals and restraint to protect the animal and
veterinarian from undue injury and risk. The accredited veterinarian shall
determine the adequacy of such facilities and may require the bulls be
delivered to a mutually agreed facility if the owner's facility is deemed
inadequate for specimen collection purposes.
10.6. Approved Laboratory Responsibilities
10.6.1. An approved laboratory is required to
immediately report any positive specimen to the State Veterinarian's Office.
Such report should include the official identification device, brand, owner
name, address, telephone number and the submitting veterinarian's name,
address, and telephone number.
10.6.2. In order for T.
fetus testing results to be considered official test results, the
packaging and transportation of samples for T. fetus testing
must explicitly follow the approved laboratory's protocol for transport of
specimens. Failure to follow the appropriate submission protocol and policy may
result in an unacceptable sample.
10.6.3. The laboratory shall report
unacceptable samples to the State Veterinarian. If any sample is deemed
unacceptable the submitting veterinarian shall submit a retest specimen. The
State Veterinarian may report the unacceptable samples and the name of the
veterinarian who took the unacceptable standards to the USDA Assistant District
Director who may report the information to the APHIS
Administrator.
Notes
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