Frontline (Fipronil) sits in the oil glands and is gradually distributed through the skins surface of the animal, this is the process in cats and dogs. I would suppose it is less effective in chickens as the process of translocation through the oil glands would not apply, however enough of the product does appear to have the desired effect. 7 days of egg disposal is recomended by vets. It does not enter the blood stream, so I see no reason they could not be fed back to the birds.
I do not recomend using drugs of any kind with out the help of a licensed vet, and even then I usually have little trust unless they themselves own and raise poultry.
I do not think there is anything wrong with anyone using anything on there chickens, be it frontline or antibiotics. It is just not something I personally choose to do. I think it is a personal choice and I advocate other natural means.
I do not recomend using drugs of any kind with out the help of a licensed vet, and even then I usually have little trust unless they themselves own and raise poultry.
I do not think there is anything wrong with anyone using anything on there chickens, be it frontline or antibiotics. It is just not something I personally choose to do. I think it is a personal choice and I advocate other natural means.