Abortion vaccine advice

[Mcnulty24]

My main flock is vaccinated for toxo and enzo, since we had a campy outbreak a couple of years ago we vaccinate our own replacements when they come into the flock.

We upped the numbers and bought in a bunch of ewes with no vaccination history. Plan was to run the two flocks apart until lambing but it looks like we might have to put them together earlier than I had planned. I am worried about the bought in ewes picking up campy from the main flock that have been either exposed or vaccinated.

Do ewes that are exposed/vaccinated to the campy bacteria carry it and so potentially pass it to naive ewes? It would make it a lot more straightforward for the next couple of months if they could be mixed.

Thanks

 

[Northeastfarmer]

@neilo

 

[neilo]

My main flock is vaccinated for toxo and enzo, since we had a campy outbreak a couple of years ago we vaccinate our own replacements when they come into the flock.

We upped the numbers and bought in a bunch of ewes with no vaccination history. Plan was to run the two flocks apart until lambing but it looks like we might have to put them together earlier than I had planned. I am worried about the bought in ewes picking up campy from the main flock that have been either exposed or vaccinated.

Do ewes that are exposed/vaccinated to the campy bacteria carry it and so potentially pass it to naive ewes? It would make it a lot more straightforward for the next couple of months if they could be mixed.

Thanks

I can't think why they should, otherwise they would expose their lambs to it, negating the need to vaccinate them when they enter the flock.

However, presumably whatever caused the campy outbreak in the first place, my still be there to hit the naïve sheep, the same as if they were exposed in a separate field. If your own are covered by vaccination, I wouldn't worry too much about mixing them personally.