Itchy ewe lambs

Old Boar

Member
Location
West Wales
So you could look at say 10% of a flock and not find it, but it could still be present? Would you recommend dosing for them if you suspect mites, even if you cannot find them?
 

bovine

Member
Location
North
The more sheep infected in a flock the more likely we are to find the mites. Hypothetically yes it could be missed. If you ring our practice wanting advice on itchy sheep we ask you to bring 3-5 itchy ones with skin lesions. Doing the scrape and looking straight down the microscope means we can keep going until we find mites, ~50% of the time first scrape on first sheep. I stop as soon as I find one.

I use the blood test when I have examined a couple of separate scrapes from different sites on all the sheep you bring and I am still suspicious of scab.

I wouldn't recommend a treatment if I can't find a parasite, I'd get you to wait for the blood results to come back.
 

aangus

Member
Location
cumbria
If using an Ivomec based product for scab and the sheep are jagged one day and put on to clean grazing/field, then jagged 7 days later can they be put back into the same field
 

bovine

Member
Location
North
Cydectin 1% needs 2 injections 10 days apart and the sheep moving

Cydectin 2% is longer lasting, keep them in their filth. Promote resistant worms. Brilliant.
 

aangus

Member
Location
cumbria
Cydectin 1% needs 2 injections 10 days apart and the sheep moving

Cydectin 2% is longer lasting, keep them in their filth. Promote resistant worms. Brilliant.
When treating for scab it is quite difficult to keep finding clean fields, the question that I asked was when you treat with an ivomec product do you need to have another clean field after the second jag
 

thorney1

Member
Going to treat my ewes with dectomax tomorrow and move to a fresh field. How long should I leave the "dirty" field empty before they are daft to go back in there?
 

bovine

Member
Location
North
When treating for scab it is quite difficult to keep finding clean fields, the question that I asked was when you treat with an ivomec product do you need to have another clean field after the second jag

No, treat and move. Can stay in same field you moved them into after first treatment.

Going to treat my ewes with dectomax tomorrow and move to a fresh field. How long should I leave the "dirty" field empty before they are daft to go back in there?

Textbooks say they can live 15-17 days off the host. I usually advise waiting a minimum of 3 weeks to be safe.

rubbish forgot to look. I know the pack says twice but our vet said 1 always works (y)

No it doesn't. Not with the 1%. I've also seen (and reported) sheep become reinfected after a single Dectomax injection.
 
Was that cydectin La? That's handy not needing a clean field.
Right I read it today
our ewes were only jabbed once as was only preventative. And put baxk to where they came from
Infected bought in rams that were in seperate field were jabed few days before ewes and put back to origional field.
Rams were put with ewes day after 2 nd jab.
Pack says cydectin 1% protects for 28days after jab which is longer than a scab mites life cycle which is why we were advised by our vet no clean fields were needed
 

aangus

Member
Location
cumbria
I would do them with dectomax and ectofly covering all bases, then move them to a clean field. Only because that's all I've used in the past,
 

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