I am very grateful for all the information. I think my 2 year old bison has a uti and we've given her 11/2 tsp organic acv, 1 tblsp yogurt, homeopathic cantharsis and staphysagria, and 4 drops of gaia herbs usnea and uva ursi and 10 tblsp gaia herbs echinacea, goldenseal, propolis for 3 days and she is doing much better. First had blood tinged urine, then no blood but peeing in the house. Today no more peeing in the house (yay) so I think she is on the mend. I read to give cranberry everyday to prevent so I will do that. Also, don't leave them too long without a pee break-I think that is what caused this in mine. I studied herbs for 11/2 years for humans and it seems what works for humans will work for dogs.
Echinacea, goldenseal and propolis are immune enhancers and natural antibiotics. ACV helps the ph of the urine I think and yogurt promotes good bacteria in the gut. Cranberry helps the bacteria not stick to the walls of the bladder and also helps the ph be inhospitable to bacteria. Also, my dog wouldn't drink at all and drinking is important to flush out the bacteria so I gave her water and chicken broth mixed together and that worked. I also gave her a little orange juice which I read would help, but didn't want to give too much because of the sugar content. Good luck! Abriete