We generally try to avoid unnecessary chemicals , but one area in which we've been slow to find alternatives is with our animals. Until a few years ago, we were regularly drenching the cattle with ivermectin, dosing the dogs with flea treatments and wormers and occasionally had to dip all the chickens in malthison so get rid of lice. Since we got our milking cow , Bella, we became even more reluctant to continue with the chemical treatments as we drink the milk everyday. Luckily we found Bel from Home Grown , who kindly answered my many house cow questions, including recommending Diatomaceous Earth for control of internal and external parasites in cows and cattle in general. I had also read about Diatomaceous Earth for chickens at Fowl Visions . Diatomaceous Earth, consists of the micro skeletons of fossilised remains of deceased diatoms, which are a type of algae found in both sea water and fresh water. They have sharp edges, which kills both internal and external parasi...