Re: beef jerky for dogs???
Just like onions, garlic contains thiosulphate, which is toxic to dogs and especailly to cats. Onions are more of a danger because of the amount of thiosulphate. Dogs or cats affected by thiosulphate toxicity, will develop haemolytic anaemia. While some dogs can tolerate some garlic, it should be used cautiously, if used at all.
Dogs do not usually like spicy food such as humans do. My bakery smokes the meat for over 7 hours and we don't add anything. We do use wood chips such as ash or oak but nothing else.
You can use Italian herbs on almost anything for dogs. Cats do not have the same digestive system and so you need to be careful not to use the same foods/treats for dogs as you do for cats. I am not an expert in cats but I am sure someone on this forum is.