Hi, I'm Dr. Peter. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Welcome! Thanks for asking your question. My name is***** am a licensed veterinarian and I will be assisting you today. First I need to ask you a few questions so that I can be well informed and give you the best advice.
1- Was the feces fresh?
2- When you say slugs do you mean worms? If so, did they look like rice or spaghetti?
1- What color are they?
2- How big are they?
3- They were in the feces immediately after she had the bowel movement, correct?
Can you post a picture on this thread?
I am sorry, but, I have never seen a slug or worm with that description coming out in the feces of a dog. I will opt out so another expert can comment. If you can post a picture that would definitely help. I am sorry I could not be of more help.