Once chickens have a bad infestation of Capillary worms, it is already too late in most cases. They do a LOT of damage, and usually kill, even after you deworm for them.. And signs are not obvious at first. That is why preventative deworming is necessary, especially if your flock free-ranges. Capillary worms and their eggs are present in soil, earthworms, everything. They are extremely hard to get rid of. That is why there is nothing wrong with periodic preventive deworming, and I have checked with several sources including our vet who verify this. . You can always check with a fecal float if you want to be sure.Valbazen is a good Dewormer and will kill all worms.I dont know why people use dewomers when there chickens don't have it.Its a waist of money and you are putting a whole bunch of chemicals in there body that isn't good for them.Also the worms will become immune to it.I only worm when they have it
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