ewes in late gestation aborting

[ISCO]

You should get a robust natural immunity from campylobacter infection this year, so what ever you do next year you are very unlikely to see disease!

How long will immunity last and will it pass to replacements which are home bred.

 

[bovine]

How long will immunity last and will it pass to replacements which are home bred.

a number of years and no, not passed on

 

[ISCO]

a number of years and no, not passed on

So would it be worth doing replacements? Is the vaccine used only on replacements in first year as enzo vaccine or Is it yearly like heptavac

 

[bovine]

For ongoing protection they need a course of 2 injections to start then an annual booster. The disease is so sporadic it's almost impossible to quantify the benefits of vaccine in a flock. Doing replacement is one option, but you'd need to know who to boost

 

[ISCO]

For ongoing protection they need a course of 2 injections to start then an annual booster. The disease is so sporadic it's almost impossible to quantify the benefits of vaccine in a flock. Doing replacement is one option, but you'd need to know who to boost

Thanks

 

[neilo]

Regardless of what the data sheet says (annual booster needed), I believe the general practice in NZ is to vaccinate replacements (twice) then give the annual booster the next year, and let natural infection/immunity cover the rest. That's certainly what I intend doing anyway.

We first had a campy outbreak twenty odd years ago. Research at the time said that we would probably get a few rumbling cases each year, with a storm every now and again. Experience has shown that to be the case, with a couple of 'storms' (c.15% aborted) since then. After losing a load of ET lambs last year, when campy flaired up in the recips, I started vaccinating ewe lamb replacements (& shearlings this year).

I've only lambed the pedigree flock so far this year, but definitely far lower losses and stronger lambs from the ewe lambs & maiden shearlings amongst those this year.