i find the whole thing quite strange, my old mans GS was never wormed in his entire life, apart from when he was a pup and never suffered worms, he lived to about 13 years af age. None of our dogs have ever been jabbed after their initial pup ones and never suffered all lived long healthy lives. Also when talking to me mam about me chooks she replied, why do you wanna waste your money on worming them, your grandad kept chicken, pigeons, geese,ducks and dogs all his life and never once treated any of them for worms,lice or mites....