You will always get conflicting information on this one. The question is easily misinterpreted by our common use of English.
"Can" you put dog poop in the pile? Yes you "can." It is physically possible to put poop in a pile.
"May" you put dog poop in the pile? Actually, yes you "may" but most people will give the other answer. I will go on to caution you that if you are not getting heat from your pile, then I would not compost the poop. If you can get a hot pile and keep it hot for a couple weeks at a time, then you are an expert enough composter to handle a little dog poop. OR, if you have tons of leaves and you keep the pile relatively moist, then you can probably bury the poop deep in the pile and it will decompose nicely before the leaves do.
Personally I leave my dog's poop on the grass and the flies, pill bugs, and microbes take care of it in 4 days, max (summer time). In the winter the poop lasts about a week but then disappears. With my new dog she's trained to poop back by the compost pile, so no problem on my grass anymore. One nice thing about a Chow-chow is they don't poop anywhere close to where they play or live. They get as far away as they can. In my case that's back by the compost pile.
You will continue to get conflicting info on this question. 99.99% of all the articles written on composting say not to compost meat or the droppings from meat eating animals. Well, don't say anything to Mother Nature but she's been composting meat and meat eater droppings for several billion years. Apparently these article writers missed the event. So everyone who takes these beginner-level articles to be gospel will tell you that you cannot compost meat or carnivore droppings. I have composted several squirrels, several rats, and my golden retriever. Our commercial composters out at Garden-Ville composted over 100 head of cattle, horses, or deer last year. It can be done no matter what anyone else tells you. But again, this is not something beginner composters should be doing.
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