Extreme temp = sick calves

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Bright Raven
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Re: Extreme temp = sick calves

Postby Bright Raven » Fri Dec 29, 2017 11:21 am

True Grit Farms wrote:
gcreekrch wrote:http://www.nadis.org.uk/bulletins/control-of-bovine-virus-diarrhoea-(bvd).aspx

I believe you are mistaken about a cow having complete recovery. They may outwardly get better but will still shed the virus their entire life and may produce PI calves. If vaccinated annually with a MLV they will not produce any more PI calves

And doesn't the same hold true for a killed vaccines like Triangle 10 HB?


Not directed a me. But yes. Killed vaccines are also effective. The efficacy might be better with the live.
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Re: Extreme temp = sick calves

Postby Silver » Fri Dec 29, 2017 12:03 pm

Interesting reading. It's not a black and white issue.

http://www.beefmagazine.com/mag/beef_modifiedlive_vs_killed
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Re: Extreme temp = sick calves

Postby True Grit Farms » Fri Dec 29, 2017 12:29 pm

Silver wrote:Interesting reading. It's not a black and white issue.

http://www.beefmagazine.com/mag/beef_modifiedlive_vs_killed

Disclaimer, I'm not able to back up this at the present time. But treating your retained heifers with a MLV before breeding, and following up with a killed vaccine booster, will give you a 5% increase in effectiveness. There's a lot of research going on at UGA for different things in the cattle business. Retaining ownership and marketing through UGA is starting to pay off for us in the southeast.
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Re: Extreme temp = sick calves

Postby gcreekrch » Fri Dec 29, 2017 2:21 pm

True Grit Farms wrote:
gcreekrch wrote:http://www.nadis.org.uk/bulletins/control-of-bovine-virus-diarrhoea-(bvd).aspx

I believe you are mistaken about a cow having complete recovery. They may outwardly get better but will still shed the virus their entire life and may produce PI calves. If vaccinated annually with a MLV they will not produce any more PI calves

And doesn't the same hold true for a killed vaccines like Triangle 10 HB?


I have discussed this many times with several vets and drug salesman. Apparently not.

We use a killed on purchased, bred cows mainly to cover the respiratory problems they may encounter. As soon as they are calved they go to the live vaccine.
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Re: Extreme temp = sick calves

Postby gcreekrch » Fri Dec 29, 2017 2:29 pm

Silver wrote:Interesting reading. It's not a black and white issue.

http://www.beefmagazine.com/mag/beef_modifiedlive_vs_killed


Thanks Silver. Good to both. I will guarentee that drug companies will never undersell one from the other. They make a profit from both.

I'm happy to get good coverage for once a year vaccination at a cheaper per head cost. Except for the first year, they get 3 shots during that time.

Don't forget the bulls either.......
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Re: Extreme temp = sick calves

Postby Bright Raven » Fri Dec 29, 2017 2:30 pm

Silver wrote:Interesting reading. It's not a black and white issue.

http://www.beefmagazine.com/mag/beef_modifiedlive_vs_killed


Studies exist that conclude that killed or attenuated virud vaccines were as effective as live preparations
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Re: Extreme temp = sick calves

Postby gcreekrch » Fri Dec 29, 2017 2:36 pm

Bright Raven wrote:
Silver wrote:Interesting reading. It's not a black and white issue.

http://www.beefmagazine.com/mag/beef_modifiedlive_vs_killed


Studies exist that conclude that killed or attenuated virud vaccines were as effective as live preparations


Kind of off subject but are the killed popular because so many calve year round and live vaccines are deadly to naive, pregnant herds?

Off to see if I can't talk some bulls into coming home.
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Re: Extreme temp = sick calves

Postby Bright Raven » Fri Dec 29, 2017 2:45 pm

gcreekrch wrote:
Bright Raven wrote:
Silver wrote:Interesting reading. It's not a black and white issue.

http://www.beefmagazine.com/mag/beef_modifiedlive_vs_killed


Studies exist that conclude that killed or attenuated virud vaccines were as effective as live preparations


Kind of off subject but are the killed popular because so many calve year round and live vaccines are deadly to naive, pregnant herds?

Off to see if I can't talk some bulls into coming home.


Let's define this. First, this discussion is about modified live virus vaccines versus bacterins. Second, the subject is MLV Vaccines for fetal protection versus scours, i.e., Coronavirus or rotavirus.

The killed fetal protection viral vaccines are popular because they are easy to administer without the risk of causing abortions.

However, if you read the instructions carefully and keep good records, the MLV Vaccines can be used safely.
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Re: Extreme temp = sick calves

Postby Silver » Fri Dec 29, 2017 2:47 pm

We use killed because we vaccinate at preg testing time. Weaned calves get a live and a killed. I don't trouble myself too much with the "why" of it, we have a good vet with lots of schooling and his own cows that we trust in for that.
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Re: Extreme temp = sick calves

Postby Jeanne - Simme Valley » Fri Dec 29, 2017 2:58 pm

Quote from article: "The virus is contracted from contact with infected cattle, it is also readily sexually transmitted. Those animals infected as adults usually recover from the virus and become immune. BVDV is however readily transmitted across the placenta from cow to calf. Animals that are infected in-utero are born permanently (persistently) infected with the virus. These animals excrete large volumes of virus all of their lives and are the main route of infections in other animals. Identifying and removing these animals is the mainstay of eradication schemes for the BVDV. It needs only one persistently infected animal to be introduced into a susceptible herd to cause very significant financial losses"

So, the article you posted says the cow usually recovers & becomes immune.

Yes, MLV can be unsafe if not timed properly. But, if you read the article comparing the MLV vs killed - the list of PROS for the MLV sure outweigh the Killed.
Same reasons I use it, longer protection, better protection - and cheaper.
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Re: Extreme temp = sick calves

Postby wbvs58 » Fri Dec 29, 2017 6:41 pm

gcreekrch wrote:http://www.nadis.org.uk/bulletins/control-of-bovine-virus-diarrhoea-(bvd).aspx

I believe you are mistaken about a cow having complete recovery. They may outwardly get better but will still shed the virus their entire life and may produce PI calves. If vaccinated annually with a MLV they will not produce any more PI calves

Hey Geek, you obviously didn't even read your link there, it only reinforces what I said.

Ken
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Re: Extreme temp = sick calves

Postby gcreekrch » Fri Dec 29, 2017 9:16 pm

Jeanne - Simme Valley wrote:Quote from article: "The virus is contracted from contact with infected cattle, it is also readily sexually transmitted. Those animals infected as adults usually recover from the virus and become immune. BVDV is however readily transmitted across the placenta from cow to calf. Animals that are infected in-utero are born permanently (persistently) infected with the virus. These animals excrete large volumes of virus all of their lives and are the main route of infections in other animals. Identifying and removing these animals is the mainstay of eradication schemes for the BVDV. It needs only one persistently infected animal to be introduced into a susceptible herd to cause very significant financial losses"

So, the article you posted says the cow usually recovers & becomes immune.

Yes, MLV can be unsafe if not timed properly. But, if you read the article comparing the MLV vs killed - the list of PROS for the MLV sure outweigh the Killed.
Same reasons I use it, longer protection, better protection - and cheaper.


I will discuss this with my vet again. It is my understanding the cow is immune but passes BVD along to the calf if she is not vaccinated.
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Re: Extreme temp = sick calves

Postby gcreekrch » Fri Dec 29, 2017 9:25 pm

wbvs58 wrote:
gcreekrch wrote:http://www.nadis.org.uk/bulletins/control-of-bovine-virus-diarrhoea-(bvd).aspx

I believe you are mistaken about a cow having complete recovery. They may outwardly get better but will still shed the virus their entire life and may produce PI calves. If vaccinated annually with a MLV they will not produce any more PI calves

Hey Geek, you obviously didn't even read your link there, it only reinforces what I said.

Ken


If you can't even address me by my proper handle it proves you aren't worth discussing this further.

Those that have to insult aren't worth my time. Stay away from the sheep buddy. ;-)
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Re: Extreme temp = sick calves

Postby Bright Raven » Fri Dec 29, 2017 10:07 pm

gcreekrch wrote:
wbvs58 wrote:
gcreekrch wrote:http://www.nadis.org.uk/bulletins/control-of-bovine-virus-diarrhoea-(bvd).aspx

I believe you are mistaken about a cow having complete recovery. They may outwardly get better but will still shed the virus their entire life and may produce PI calves. If vaccinated annually with a MLV they will not produce any more PI calves

Hey Geek, you obviously didn't even read your link there, it only reinforces what I said.

Ken


If you can't even address me by my proper handle it proves you aren't worth discussing this further.

Those that have to insult aren't worth my time. Stay away from the sheep buddy. ;-)


I may be wrong but I don't believe Ken did that deliberately. I say that because I was reading your User name that way. When I read his address to you, I didn't notice it as disrespect. After you mention it, I can distinguish the difference. In all the time I have been here, Ken has to rank as one of the top 10 gentleman. Never, not once, has he called a name.
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Re: Extreme temp = sick calves

Postby gcreekrch » Fri Dec 29, 2017 10:24 pm

Bright Raven wrote:
gcreekrch wrote:
wbvs58 wrote:Hey Geek, you obviously didn't even read your link there, it only reinforces what I said.

Ken


If you can't even address me by my proper handle it proves you aren't worth discussing this further.

Those that have to insult aren't worth my time. Stay away from the sheep buddy. ;-)


I may be wrong but I don't believe Ken did that deliberately. I say that because I was reading your User name that way. When I read his address to you, I didn't notice it as disrespect. After you mention it, I can distinguish the difference. In all the time I have been here, Ken has to rank as one of the top 10 gentleman. Never, not once, has he called a name.


If so, he has made the same error twice. I disregarded the first time...... No need for you to apologize for your neighbors, we're all supposed to be grownups here.

Everywhere else calls me gcreek. The actual name of our operation is Guichon Creek Ranch, hence the abbreviation.
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