IBR

bob charles

Strangely there are high levels of IBR doing the rounds at the moment. Never before had problems with IBR this time of the year with cattle at grass but have now and talking to a few others they are having similar problems. be on guard as I have a few gone with it already.

jomoloney

bob charles wrote: »

Strangely there are high levels of IBR doing the rounds at the moment. Never before had problems with IBR this time of the year with cattle at grass but have now and talking to a few others they are having similar problems. be on guard as I have a few gone with it already.

when you mentioned about the calves with hoose last week , I immediatley thought of IBR but thought you would have covered for it,

Since we began a twice yearly vaccination programme we have no problems , bar 1 cow who got pneumonia on 3 occassions this year.. she's wearing a red tag now.

bob charles

jomoloney wrote: »

when you mentioned about the calves with hoose last week , I immediatley thought of IBR but thought you would have covered for it,

Since we began a twice yearly vaccination programme we have no problems , bar 1 cow who got pneumonia on 3 occassions this year.. she's wearing a red tag now.

they were out of a different group that now are showing signs of IBR. Usually dont vaccine grass cattle as the cost/benefit hasnt stacked up in the past. All cattle indoors are vaccinated. Usually its the sept to Jan are our risk periods but have had allot of problems over the last month with heavy cold rain :mad:, something allot of you guys are nearly wishing for

delaval

jomoloney wrote: »

when you mentioned about the calves with hoose last week , I immediatley thought of IBR but thought you would have covered for it,

Since we began a twice yearly vaccination programme we have no problems , bar 1 cow who got pneumonia on 3 occassions this year.. she's wearing a red tag now.

Your on twice yearly live I presume. We now do adults with inactive annually. All young stick get live twice a year

Great with the cows no bothering them in winter when full of calves

bob charles

delaval wrote: »

Your on twice yearly live I presume. We now do adults with inactive annually. All young stick get live twice a year

Great with the cows no bothering them in winter when full of calves

I was linking cows throwing calves after using IBR live but a number of vets I suggested it too, were having none of it. There is some talk of such a link in the US between use of live vaccine and abortion. Are you lads doing them for PI3 and BRSV aswell

delaval

bob charles wrote: »

I was linking cows throwing calves after using IBR live but a number of vets I suggested it too, were having none of it. There is some talk of such a link in the US between use of live vaccine and abortion. Are you lads doing them for PI3 and BRSV aswell

We do all calves for PI3 and Rsv. These two are under review. I find no significant drop in pn cases or rises in recovery rates with these two vaccines. I've taken to using Draxxin as a treatment instead. IBR will not be romoved though. We did cows this am and you would know to look at them that it was due. An increase in coughing and wetter than normal noses

Are you doing vaccine for other pn?

bob charles

delaval wrote: »

We do all calves for PI3 and Rsv. These two are under review. I find no significant drop in pn cases or rises in recovery rates with these two vaccines. I've taken to using Draxxin as a treatment instead. IBR will not be romoved though. We did cows this am and you would know to look at them that it was due. An increase in coughing and wetter than normal noses

Are you doing vaccine for other pn?

lock, stock and barrel with the big cattle indoors, it buys me time if there is a serious problem. Its just that if I decide to vaccine everything its going to cost €€€. Might start doing random swabs to see whats going on in other cattle. I presume the IBR reading from the bulk tank is well handy

greysides

bob charles wrote: »

I presume the IBR reading from the bulk tank is well handy

Not necessarily.

I see it as a prod to do some herd screening to check out the milk findings. Sometimes they are not backed up. A few cows putting out a lot of antibody can skew results so there may be less prevalence than the initially inferred.

delaval

bob charles wrote: »

lock, stock and barrel with the big cattle indoors, it buys me time if there is a serious problem. Its just that if I decide to vaccine everything its going to cost €€€. Might start doing random swabs to see whats going on in other cattle. I presume the IBR reading from the bulk tank is well handy

No Bob not really its a bit like a satellite image, blurry.

Like you we rely on swabs, bloods and dung samples. 10% of each age group

Hugh 2

Have been getting away for years without vaccinating for anything till now.
IBR turned up here 2 months ago with cows dry coughing no mucus or snotty noses or high temperatures
Vaccinated the whole herd with live vaccine (not through the nose as they were not really all that sick)
Any idea of when they should stop coughing I am starting to wonder did I get a dud vaccine?

jaymla627

Hugh 2 wrote: »

Have been getting away for years without vaccinating for anything till now.
IBR turned up here 2 months ago with cows dry coughing no mucus or snotty noses or high temperatures
Vaccinated the whole herd with live vaccine (not through the nose as they were not really all that sick)
Any idea of when they should stop coughing I am starting to wonder did I get a dud vaccine?

Ours where the same had a really raspy dry cough had been done for ibr only 2 months previous so that was ruled out , went and done them with eprinex pour-on zero milk withdrawal which covers lung worms and there cough cleared up within two weeks and there actually milking half a litre more now then when they where done with the pour-on 5 weeks ago so seems to have done the trick.

greysides

Hugh 2 wrote: »

IBR turned up here 2 months ago with cows dry coughing no mucus or snotty noses or high temperatures

How was the diagnosis reached?

Hugh 2

greysides wrote: »

How was the diagnosis reached?

Called out the vet who took temperatures and samples (mainly for lung worm)
Lung worm turned out to be clear (Since they are still coughing I will have to check up on that result)
And round the same time got a high IBR result back from Glanbia milk test.

All animals at home have the cough calves seemed to have got it first but they had a hard spring with rotavirus and crypto and the coughing I thought was pneumonia (the bad spring resulted in animals not getting out and over full sheds)

greysides

Sounds likely. IBR will affect calves too although it usually is associated with older animals. It could be worth re-doing the faecal samples as the worms have to be adult to lay eggs, if the samples were taken a little too early the worms could be there but not showing up.

jomoloney

greysides wrote: »

Sounds likely. IBR will affect calves too although it usually is associated with older animals. It could be worth re-doing the faecal samples as the worms have to be adult to lay eggs, if the samples were taken a little too early the worms could be there but not showing up.

when we got hit by ibr originally calves as young as 10 days old were getting infected,

dung, milk, and nasal swabs (possibly blood also cant remember were negative)

after a about 4 weeks a sample taken during a pm showed +,

we hadn't been vaccinating at the time

Hugh 2

greysides wrote: »

Sounds likely. IBR will affect calves too although it usually is associated with older animals. It could be worth re-doing the faecal samples as the worms have to be adult to lay eggs, if the samples were taken a little too early the worms could be there but not showing up.

Thanks
Greysides just sent off a few more dung samples .
Seems like there are two doses for milking cows (no withdrawal for milk) and they both seem identically priced @ over 5 Euro a cow I will wait till tomorrow for result before dosing.

Hugh 2

Dung samples came back again negative for lung worm..???????
100 stronyle eggs found ?????
Wtf?

RobertKK

In the bulk milk tank test my herd is constantly negative for IBR and never had it in my herd, never vaccinated for it.
Should I?

greysides

Hugh 2 wrote: »

Dung samples came back again negative for lung worm..???????
100 stronyle eggs found ?????
Wtf?

Lungworm is known in latin as Dictyocaulus viviparous. The last part means born alive. The infectious item in the dung is not an egg but a small larva that has previously hatched inside the animal.

The Strongyle eggs referred to are eggs from the Strongyle family whose members include several of the intestinal species that cause Parasitic Gastro-Enteritis (Ostertagia, Trichostrongylus, Cooperia).

So... no sign of Hoose but some PGE worms present (off-hand I can't give the importance of those figures but I have a feeling it's not too important).

Mulumpy

RobertKK wrote: »

In the bulk milk tank test my herd is constantly negative for IBR and never had it in my herd, never vaccinated for it.
Should I?

I don't either all tests coming back clear but hear so many herds devastated gonna start next year. Think there is an erad program being introduced soon

greysides

RobertKK wrote: »

In the bulk milk tank test my herd is constantly negative for IBR and never had it in my herd, never vaccinated for it.
Should I?

Catch 22.

Why would you vaccinate for something you don't have?

v.


You've a completely naive herd with no degree of herd immunity should the infection ever arrive.......then you'd have to expect the worst scenario.


Some people will vaccinate because they're happier to know the bases are covered or they've too much too lose.

Others are risk-takers and happy to take a calculated risk.

To calculate the risk, do a SWOT analysis (strengths, weaknesses, opportunities, threats).

Strengths: You live on an island with only one boat which only you have the keys for. It's too far to the mainland for cattle to swim and the AI man/vet has to have a change of clothes after swimming out.

Weaknesses: Your island has lovely sloping beaches.



Threats: The neighbours cattle drive speed boats and do dawn raids.

Opportunities: You have the power of the cannon ball (vaccine).


You get the idea............ GOSH, isn't it hot............!

mf240

greysides wrote: »

Catch 22.

......![/

Question for ya grey sides. When you vaccinate an animal with a dead vaccine. This vaccine can't make them sick. So what I am wondering is how those the animals immune system know this is a threat and that it needs to make antibodies.

greysides

During pregnancy the foetus takes an inventory of what constitutes 'myself'. In a PI animal the BVD virus is already present at that point and wrongly gets put on the 'myself' list rather than on the 'foreign body' list. This is why the PIs body never reacts to it immunologically.

With a dead vaccine the IBR is considered 'not myself', foreign and action is taken to rid the body of it.

A living virus going about its normal daily replication business seems to generate a more complete reaction from the immune system. This is why live vaccines tend to be better. It's why exposure to the live field BVD virus generates a life-long immunity but exposure to the dead BVD vaccinal virus needs boosting.