Hi,
The mucus is a symptom of having an inflamed gi tract. Did the vet take a look at the poop and do a gram stain/float to see if he had an infection in the poop? My vet would with one of my buns with reoccurring gi infection and put him on metanitrozol antibiotic( butchered the name) and it cleared him right back up. And since he is so young, having those poops can be very bad. It’s it actually water poop (diarrhea) or loose stool?

I don’t recognize those meds they gave you. Did you got to a rabbit savvy vet only? Since many vets do not know treatment of bunnies and what meds are safe for them, they can kill them very fast. Not to scare you but we always mention for new members to only go to rabbit savvy vets.

What diet are you feeding him? Any new food introduced lately? He shouldn’t have veggies for up until 5 months if I am correct since his gi tract and tummy need to slowly adapt to new foods.

I agree that the mucus is a symptom of an inflamed GI tract. This can be caused by several things. You vet seems to think it’s about a microbial imbalance of the gut. The protexin is a fiber paste that has probiotics and and the recovery formula is to replenish him with nutrients. They are not drugs, they are supplements. (They are both UK brands, so most of our US members would not be familiar with them.) Slight gut imbalances are common with very young buns because their gut microbiota is not yet fully developed. This is the reason why it’s recommended you don’t start young buns on vegs until they’re 12 weeks old. The best way to render a bunny gut’s microbiota enduring and diverse is through grass hay, but it needs time and, for very natural reasons, a baby bun hasn’t been a hay eater for very long. 

I’d be a bit worried about the brown mucus though. The diarrhea you saw is typical of a slight gut imblance if, and only if, there are normal round poop as well. If there are no formed, normal poops, just runny and mucosy poop, I’d suspect sth else could be going on. Coccidiosis, a parasitic infestation that can cause severe diarhhea and sadly often become fatal, is very common in young rabbits, and it needs antibiotics to clear up. Do you have more of the protexin fiberplex and recovery formula to give him at home? If he deteriorates in any way I’d take him in for fluid replacement and antibiotics, because baby buns can dehydrate quickly. If he stays the same and his poop hasn’t improved by tomorrow, I’d call the vet again and ask about coccidiosis. It can be tested for in the feces.

It’s very, very good that he’s in good shape. Alertness, responsiveness, appetite, curiosity etc is what you want to see in a young bun.

Here’s an article about various poop disturbances in rabbits, ranging from the most severe to the light ones that are treatable at home:
http://rabbit.org/intermittent-soft-cecotropes-in-rabbits/ 

(ETA: If the protexin you got was in pellet form it’s still a probiotic. It has live brewer’s yeast that has been shown to be beneficial for young rabbits’ guts.)

There is no attachment. I know it’s difficult to add pictures on here. Hopefully one of the forum leaders can insert it for you. Personally, I would take him to a different rabbit savvy for a second opinion but of course it’s at your discretion. Make sure he is staying hydrated and hay only to make sure nothing upsets his gi tract.

You didn’t mention what diet you have him on so that would be great if you could tell us.
Also , for infections, many times it’s passed from the mom through milk or in the poop, so it can be months it’s dormant in the baby until it becomes stressed and the immune system is compromised and the infection can take over. Was the baby taken away at 8 weeks old from the mom or was it taken away earlier? A baby taken too soon wouldn’t have had enough good bacteria from the mom in the milk and lead to a poor immune system.

What was his temperature when he was taken in?
If you have any of the pre or prebiotics, continue to give it to help the gi flora.
Just because the poop locked normal at the vet doesn’t mean he doesn’t have a bad Infection in his gut, he should have a fecal float and gram stain to see what is going on in his gi tract. Of course you don’t want to stress him out but this could be something serious.

As bam said, make sure to check on him and make sure he isn’t eating and drinking normal, if not, take him to the vet immediately.

Very encouraging news! It does seem like he is getting better. Poop irregularities are expected after a bout like this. It can take two weeks for the gut to stabilize. The crumbliness of the poop now is due to the change to a diet with more fiber. That’s not a bad thing, just make sure he drinks water. If he has a bottle he may drink more if you add in a water bowl. If he moves over a bigger area, you can have water bowls in several places.

The fiberplex can be given for as long as you see fit. It’s very good stuff.

If a very young bun does have coccidiosis it practically always comes from the place the bun was born and raised. Then the infestation manifests when the bun is exposed to the stress of a new home (environmental change is always a stressor no matter how excellent the new home is). Your bun do seem to be doing better now and seems to be in very good spirits, so I’d just keep an eye and keep up the high fiber diet (hay). When you do add in more pellets, do it gradually.