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The Rack Report Blog Contributors
The Rack Report Blog Contributors - Russell Graves

Russell Graves - Believes whitetails shouldn't be photographed in the back of a truck with their tongue hanging out.
Location - Texas

The Rack Report Blog Contributors - Brian Strickland

Brian Strickland - Has 369,518 acres of land that you can hunt on. Call him at (555) 281-HUNT.
Location - Colorado

The Rack Report Blog Contributors - Tony Hansen

Tony Hansen - Is pretty confident Michigan will release at least 300,000 archers into the woods this fall.
Location - Michigan

The Rack Report Blog Contributors - Jake Fagan

Jake Fagan - He's really just here to hang out, so don't mind him.
Location - Georgia

The Rack Report Blog Contributors - Will Brantley

Will Brantley - Loves hunting in a dorag because it makes him look Ramboish. Some may call it Little Man Syndrome.
Location - Tennessee

Monday, December 22, 2008

 

Update on CWD in Michigan

Well the 2008 deer season is all but over here in Michigan. For those of you that follow such things, you'll recall that Chronic Wasting Disease was discovered in a captive deer here during the summer. That discovery prompted the Michigan DNR to impose an immediate ban on feeding and baiting in the Lower Peninsula -- a move that caused severe angst amongst some Michigan hunters who claimed they would stop hunting and far fewer deer would be killed -- but more on that in a moment.

The DNR has tested thousands of deer and thus far no CWD-infected deer have been discovered. Personally, I'm shocked that a positive deer wasn't found. Don't get me wrong, I'm thrilled. But in every other instance when CWD is discovered in a captive deer, it's soon discovered in a wild deer. Maybe we dodged one big bullet.

Now, about the baiting ban. For those unfamiliar with baiting, it's where hunters dump corn, beets or other food in the woods to attract deer. The practice is popular in Texas and Saskatchewan -- but there are major differences in my opinion. In Saskatchewan you don't have 700,000 gun hunters and 300,000 bowhunters putting out piles of bait. The impact is negligible becuase the human population is so low. In Texas, properties are generally far larger and the deer densities are different. In other words, it's just a different situation.

The deer kill was down in Michigan this year. However, in areas where the bait ban was in place, more deer were killed than last year. The Upper Peninsula, where baiting was legal, saw a 22 percent decrease in its deer harvest. So much for the theory that hunters can't kill deer without using bait.

Tony Hansen, Michigan Man
Comments:
0C7.04

North American Cervids Harbor Two Distinct CWD Strains

Authors

Angers, R. Seward, T, Napier, D., Browning, S., Miller, M., Balachandran A., McKenzie, D., Hoover, E., Telling, G. 'University of Kentucky; Colorado Division of Wildlife, Canadian Food Inspection Agency; University Of Wisconsin; Colorado State University.

Content

Despite the increasing geographic distribution and host range of CWD, little is known about the prion strain(s) responsible for distinct outbreaks of the disease. To address this we inoculated CWD-susceptible Tg(CerPrP)1536+/· mice with 29 individual prion samples from various geographic locations in North America. Upon serial passage, intrastudy incubation periods consistently diverged and clustered into two main groups with means around 210 and 290 days, with corresponding differences in neuropathology. Prion strain designations were utilized to distinguish between the two groups: Type I CWD mice succumbed to disease in the 200 day range and displayed a symmetrical pattern of vacuolation and PrPSc deposition, whereas Type II CWD mice succumbed to disease near 300 days and displayed a strikingly different pattern characterized by large local accumulations of florid plaques distributed asymmetrically. Type II CWD bears a striking resemblance to unstable parental scrapie strains such as 87A which give rise to stable, short incubation period strains such as ME7 under certain passage conditions. In agreement, the only groups of CWD-inoculated mice with unwavering incubation periods were those with Type I CWD. Additionally, following endpoint titration of a CWD sample, Type I CWD could be recovered only at the lowest dilution tested (10-1), whereas Type II CWD was detected in mice inoculated with all dilutions resulting in disease. Although strain properties are believed to be encoded in the tertiary structure of the infectious prion protein, we found no biochemical differences between Type I and Type II CWD. Our data confirm the co·existence of two distinct prion strains in CWD-infected cervids and suggest that Type II CWD is the parent strain of Type I CWD.

see page 29, and see other CWD studies ;

http://www.neuroprion.org/resources/pdf_docs/conferences/prion2008/abstract-book-prion2008.pdf

Sunday, November 23, 2008

PRION October 8th - 10th 2008 Book of Abstracts

http://bse-atypical.blogspot.com/2008/11/prion-october-8th-10th-2008-book-of.html

Saturday, September 06, 2008 Chronic wasting disease in a Wisconsin white-tailed deer farm 79% INFECTION RATE Contents: September 1 2008, Volume 20, Issue 5

snip...see full text ;

http://chronic-wasting-disease.blogspot.com/2008/11/commentary-crimes-hurt-essence-of.html

Wednesday, December 17, 2008 White-tailed Deer in Portage County Tests Positive for CWD

http://chronic-wasting-disease.blogspot.com/2008/12/white-tailed-deer-in-portage-county.html

TSS

Monday, December 22, 2008

CWD DETECTED IN ELK HUNT AREA 117 SOUTH OF SUNDANCE WYOMING

http://chronic-wasting-disease.blogspot.com/2008/12/cwd-detected-in-elk-hunt-area-117-south.html  
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