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
Johnes FREE!!
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="redcowsrule33" data-source="post: 618905" data-attributes="member: 8629"><p>PI calves are created in-utero during the first trimester. Exposure to the virus after this will cause the disease, not a PI. PI cows and cows exposed to the virus create PI calves in utero. Once the cow herd is clean, test the calves every year. Most labs will pool ear notch samples to keep costs down - they would only test each sample if the pool is positive. I would not keep a replacement until it was tested not because of exposure as a calf but because you have had it on your place, it can persist in the environment for awhile, and no vaccine is 100%.</p><p></p><p>Testing will also increase the value of your calves at the stockyard. But what to do with a PI calf is an ethical controversy. Personally, if you have one, I would put it down. Can't keep it (Typhoid Mary) can't sell it with the test result advertised (who would want it) can't sell it without the test result advertised (giving your problems to others).</p></blockquote><p></p>
[QUOTE="redcowsrule33, post: 618905, member: 8629"] PI calves are created in-utero during the first trimester. Exposure to the virus after this will cause the disease, not a PI. PI cows and cows exposed to the virus create PI calves in utero. Once the cow herd is clean, test the calves every year. Most labs will pool ear notch samples to keep costs down - they would only test each sample if the pool is positive. I would not keep a replacement until it was tested not because of exposure as a calf but because you have had it on your place, it can persist in the environment for awhile, and no vaccine is 100%. Testing will also increase the value of your calves at the stockyard. But what to do with a PI calf is an ethical controversy. Personally, if you have one, I would put it down. Can't keep it (Typhoid Mary) can't sell it with the test result advertised (who would want it) can't sell it without the test result advertised (giving your problems to others). [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Health & Nutrition
Johnes FREE!!
Top