|
|
CWD ARTICLES
Updated 12/27/02
Oregon joins battle of deer, elk illness
Scientists gather specimens that will be tested for chronic wasting disease.
BILL MONROE
The Associated Press
December 24, 2002
WALDPORT - The most explosive issue in the history of North American deer and
elk management could erupt from the end of a grapefruit knife that Doug Cottam bought at Fred Meyer.
Hands safely squeezed into latex gloves, he kneels at a rural roadside and
works the bent blade carefully down the cranial canal of a poached elk to
slice free the bull's brainstem.
"There it is," the seasoned Oregon Department of Fish and Wildlife
biologist says quietly, with a little awe. "That's all there is to
it."
Biologists, Oregon State Police, sheriff's deputies, treaty tribal members,
hunters, ranchers, zookeepers and even state and county road crews that come
upon roadkill have spread throughout Oregon
this fall in a determined effort to make sure a deadly brain disease hasn't
invaded from its strongholds in Rocky Mountain states
and Canadian provinces.
The 500 to 1,500 samples being collected mark the state's most intense and
widespread surveillance of big game animals, part of a nationwide race
against chronic wasting disease, a fatal, incurable biological time
bomb. It threatens North
America's wild and domestic herds, along with billions of
dollars invested in hunting, farming and wildlife management.
The best and earliest test thus far is possible only on the brainstems of
animals within 24 hours of death, making the fall hunting seasons a perfect
sampling window.
So far, Oregon is disease-free,
but chronic wasting has been diagnosed in
free-ranging or captive mule deer, white-tailed deer and elk in 11 states
and two Canadian provinces, some of which have slaughtered thousands of
wild deer and farmed elk to stem the spread.
Urgency heightens every time it hopscotches across
entire states or even within new borders.
It recently was reported in an elk at Wind
Cave National Park
near Mount Rushmore, South Dakota's
second case in a wild elk. In early November, Illinois'
first case was diagnosed.
"It's the most frightening thing I've ever seen," said Cottam, 43. "These things are awfully hard to
stop."
Chronic wasting, similar to mad cow and Creutzfeldt-Jakob disease in humans,
appears limited to deer and elk. Testing across the continent concentrates on
those two species, with surveillance and research on other species in their
family, called cervids. They include a wide range of grazing animals, from
moose, caribou and reindeer to tiny imports such as axis, fallow and sika deer.
Oregon is gathering as many
specimens as possible from its 67 geographic game management units through
December. They'll be shipped in January to the National Veterinary Services
Laboratory in Ames, Iowa.
Results are expected in the spring or early summer. Another intense
collection
scheduled for 2003 will give biologists a better idea of the disease's
presence, and annual tests will continue for the foreseeable future.
Dozens of states, including Oregon,
have banned interstate traffic on cervids, putting the skids on a growing
elk-ranching industry and affecting species that haven't been afflicted, such
as axis, fallow and sika deer raised
for their restaurant-quality venison. Even reindeer used in live Santa Claus
displays can't cross many state lines.
Cottam and other biologists in Oregon began with
buck deer seasons in late September, but poor hunting in dry fall weather
almost immediately sent them searching for additional sources.
"We've gotten a lot of cooperation," said Cottam,
who's attached to Fish and Wildlife's Newport
office. "And it's across the board, with hunters, game farmers, tribal
hunters, road crews, state police, everyone. I've actually gotten many of my
samples from department employees who call me from their own hunts. Nobody
wants this here."
Perhaps the most unusual collection point is the Wildlife Safari "meat
wagon," which has a state permit to search Winston-area roadways each
morning for fresh roadkill to feed its large cats.
The drive-through zoo has contributed more than 20 skulls to the state's
effort.
Don Whittaker, a staff biologist coordinating the sampling, said extra
attention is being paid to regions such as the northern areas of Central
Oregon, where tuberculosis was discovered last year at an
elk-ranching operation.
Tests on lung tissues also are being made in those zones for TB, another
disease feared to be spreading among the continent's wildlife. Some forms are
transmissible to humans, although chronic wasting has not jumped from the
cervid species to humans or other grazing animals, such as cattle.
Larry Cooper, deputy wildlife division director for the Department of Fish
and Wildlife, said Oregon has
been told that the federal government will pay the testing bills at $35 to
$50 apiece.
"Ultimately, we're going to find a better test for it," Detwiler said.
------------------------------------------------------------------------
Game officials use
new live test on New
Mexico deer
Silver City Sun-News
By The Associated Press
Sunday, December 22, 2002 - SANTA FE (AP) - New Mexico wildlife managers are using a new method of
testing for chronic wasting disease that allows them to gather samples
without killing the animals.
The recent discovery at Colorado State University that the disease can be detected in the animals'
lymph nodes led to the change.
Wildlife officers performed tonsillectomies on three mule deer last week. All
three survived the operation.
"We're only the second state in the nation to be doing it," said
Martin Frentzel, spokesman for the state Department
of Game and Fish. "This process is just now hitting the scientific
journals. It really is groundbreaking."
Each procedure was performed at an outside operating station and took about
20 minutes.
Blindfolded and hobbled, the tranquilized deer were brought to the station,
where they are given an antibiotic. A vise holds the deer's mouth open while
a veterinarian reaches down its throat with a device and removes small pieces
of a tonsil. The deer is then given a blood test and is fitted with radio
collars and ear tags.
"The deer is sleeping basically, and we monitor its temperature and its
heart rate," said Patrick Morrow, wildlife biologist for White Sands
Missile Range Morrow. "All of the deer that we handled, we didn't have
any mortalities, and they all responded just perfectly."
The sedated deer were taken to a secluded place where they slept off the
medication for about an hour before they got back on their feet. Officers
then tracked and observed the deer for a day or two.
"Within a day, they're ready to eat again," said wildlife health
specialist Kerry Mower of the Game and Fish Department. "There will
still be some pain in their throats, but it wasn't hindering their eating at
all. We were very satisfied with that."
The samples were sent to CSU's chronic wasting
disease diagnostic laboratory for testing. Officials said it will take
several weeks before the results are returned.
If any of the test results come back positive, the deer will be tracked and
killed, officials said.
Once found only in small areas of Colorado and Wyoming, chronic wasting disease has spread to elk
ranches and wild deer herds as far away as Wisconsin. New Mexico's first and only case of the disease was
detected in a sick mule deer killed March 28 at White Sands Missile Range.
Chronic wasting disease creates sponge-like holes in a deer's brain, causing
the animal to grow thin, act abnormal and die. The disease is similar to mad
cow disease.
There has never been a known case of it being transferred to humans or
livestock.
The state Department of Game and Fish is conducting the tests with the U.S.
Army, U.S. Department of Agriculture, CSU and other agencies.
Because it takes more time and personnel to perform the live tests,
"it's very costly to do the operation we're doing," Morrow said.
"Killing is the easier, quicker, more realistic way to get the number of
samples you need, but we don't have those numbers down here."
Larry Bell, director of the New Mexico Department of Game and Fish, wanted to
attempt the live tests rather than eradicate the state's
already depleted deer herds.
"Unless we have to, we don't want to go in there and whack a bunch of
deer," Frentzel said.
Like many states in the West, New Mexico has a mule-deer population that is currently
lower than it has been for decades. Most biologists agree the decline can be
blamed on drought, increased predation and poor habitat.
----------------------------------------------------------------------------
In accordance with Title 17 U.S.C. Section 107, any copyrighted work in this
message is distributed under fair use without profit or payment to those who
have expressed a prior interest in receiving this information for non-profit
research and educational purposes only.
[Ref.
http://www.law.cornell.edu/uscode/17/107.shtml]
|