chicken-and-egg - page 53

Chicken & Egg. Welfare and Food Together.
Mixing and using Dergall is easy: mix into clean
water at the rate of 10ml to 1 litre, a little goes a
long way. Make the product up fresh to spray inside
the poultry house, preferably when the birds are in
darkness, or at the end of the day to maximise
efficacy as mites only come out to find food when
it is dark. Only use Dergall freshly mixed, so make
up what you need, not the whole container.
Should you have a case of northern fowl mite cut
off any debris from around the hen's rear (as this is
where the northern fowl mite lays her eggs) then
spray her rear and feathers with the Dergall at the
same dilution, alongside the inside of the poultry
house. Repeat in 5-10 days to destroy any
newly-hatched mites from disturbing your birds.
Destroy the feather clippings as you want to
remove as many mite eggs as possible.
For cases of scaly leg mite, and to prevent it arising in
your flock, you can either spray or dip the birds' legs
into Dergall at the same dilution of 10ml to 1 litre of
water. Repeat in one week to destroy newly-hatched
Dergall is available from the Chicken Vet in 100ml
bottles with an integral measure. 100ml will make 10
litres of spray solution. Visit
more information.
The Chicken Vet
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