Menu
Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Forums
Cattle Boards
Health & Nutrition
BVD?wtf?i
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support CattleToday:
Message
<blockquote data-quote="Lucky_P" data-source="post: 1338197" data-attributes="member: 12607"><p>Overview here: <a href="https://www.aphis.usda.gov/animal_health/emergingissues/downloads/bvdinfosheet.pdf" target="_blank">https://www.aphis.usda.gov/animal_healt ... osheet.pdf</a></p><p></p><p>IMO, the name 'Bovine Virus Diarrhea' virus is a misnomer. In most instances, though, diarrhea is NOT a feature of infection with BVD virus... it's an immunosuppressor, setting the stage for BRD, infertility, abortion, and various and sundry maladies.</p><p>I'm presuming that it was named that, when discovered, back around 1946, because the initial cases were actually BVD-Mucosal Disease cases - all of which DIE.</p><p> </p><p>Calves infected, in utero, between days 80-110(perhaps as far out as 140) will be persistently infected(PI)... and will be constantly spreading virus in every fluid and secretion for the entirety of their life... serving as a source of infection for other animals in the herd. </p><p></p><p>Ear notch - that's one of the samples we routinely use in testing for BVD. Animals that are BVD+ on ear notch are most likely Persistently Infected - and need to be removed from the herd. If they're really valuable, you could isolate them and retest in 2-3 months or so... and if negative at that time, it's an indicator that they had acute infection at the time of ear notching, and are not BVD-PI animals. </p><p></p><p>Hope they're not BVD-PI... it's a bad deal to have in your herd.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1338197, member: 12607"] Overview here: [url=https://www.aphis.usda.gov/animal_health/emergingissues/downloads/bvdinfosheet.pdf]https://www.aphis.usda.gov/animal_healt ... osheet.pdf[/url] IMO, the name 'Bovine Virus Diarrhea' virus is a misnomer. In most instances, though, diarrhea is NOT a feature of infection with BVD virus... it's an immunosuppressor, setting the stage for BRD, infertility, abortion, and various and sundry maladies. I'm presuming that it was named that, when discovered, back around 1946, because the initial cases were actually BVD-Mucosal Disease cases - all of which DIE. Calves infected, in utero, between days 80-110(perhaps as far out as 140) will be persistently infected(PI)... and will be constantly spreading virus in every fluid and secretion for the entirety of their life... serving as a source of infection for other animals in the herd. Ear notch - that's one of the samples we routinely use in testing for BVD. Animals that are BVD+ on ear notch are most likely Persistently Infected - and need to be removed from the herd. If they're really valuable, you could isolate them and retest in 2-3 months or so... and if negative at that time, it's an indicator that they had acute infection at the time of ear notching, and are not BVD-PI animals. Hope they're not BVD-PI... it's a bad deal to have in your herd. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Health & Nutrition
BVD?wtf?i
Top