Hi all,
I don't post here too often - i tend to lurk, but i had to point out a couple of things here...
Ivermectin - use it ONLY if you actually see worms - it reduces white cell count, which immunocompromises your birds. My vet reccommends using it to kill a KNOWN worm population. There's a fair bit the drug companies don't tell you...
Small residues in the environment will allow the sort of conditions that lead to loss of efficacy...it is used in humans too, and is partly the reason for withdrawal periods.
Symptoms of worms depends largely which ones you mean. Gape (syngamus) is a horrid little creature that takes up residence in the throat - and IS transmissible to humans (ugh!) - the symptoms are that the bird 'gapes' for air. By this time it's obvious the colony is well established.
The Bendazole group of drugs treat this. Again, this family of drugs is used in humans.
Intestinal parasites can be treated internaly with the same group and with a lot of efficacy. The signs of internal parasites are usually a drop in egg production, if a heavy infestation, prominently felt keel bone (starvation!) and presence of worms in the faeces. There are many sites which can provide both images and research to use as a point of reference. Just google the term 'worms in poultry'. You'll get a lot of results. pick with care.
xxx
CHICKENS-101@yahoogroups.com
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