Ibr?

[Milkcow365]

had very sudden milk loss over the past week could ibr be the cause? We vaccinated with live about a month ago, cows noses very snotty but no coughing? Seems to be hitting freshest cows most?

 

[Big_D]

Think takes good 3 weeks for vaccine to be effective, want to get in there with intranasal pronto if that's what it is

 

[Milkcow365]

Think takes good 3 weeks for vaccine to be effective, want to get in there with intranasal pronto if that's what it is

We have been vaccinating with just live only for about a year and a half as to my vets suggestion, we do them every 4 months

 

[Big_D]

We have been vaccinating with just live only for about a year and a half as to my vets suggestion, we do them every 4 months

Sorry I can't be of more help to you, all I know is if you have an actual outbreak you need to use intranasal which gives you cover in around 3 days as opposed to 3 weeks

 

[bovine]

we do them every 4 months

Why?

 

[bovine]

To the OP - if this was a booster vaccine and done in time then I think clinical IBR is unlikely. Usually red, running eyes with IBR and I don't see any ocular signs.

A host of other things can cause these symptoms. I trust you have your vet involved and some samples sent away?

Are they coughing? Do you Huskvac?

 

[bigw]

Winter dysentery can cause sudden milk loss

 

[Milkcow365]

To the OP - if this was a booster vaccine and done in time then I think clinical IBR is unlikely. Usually red, running eyes with IBR and I don't see any ocular signs.

A host of other things can cause these symptoms. I trust you have your vet involved and some samples sent away?

Are they coughing? Do you Huskvac?

Flying herd so I've animals coming on most months,it was a booster,yes vet is involved but he says sending samples away is pointless? We don't huskvac no no coughing,

 

[bovine]

I'd be doing a PCR for IBR (and other causes) on a flush from the lungs. Can do IBR testing on nasal swabs (deep ones).

I can't see a reason NOT to test and find out?