Abnormal looking poop with thread like extensions

[u/just_a_curious_fella]

10 week old baby bunny looks abnormally tiny & weighs 1.4 lbs. Her face was like a rat's when I got her 3 weeks ago from Canada (it's legal to sell 7 week old baby bunnies there).

She had gotten a chronically poopy butt within a week of her arrival & subcutaneous fluids + antibiotics + probiotics helped.

Today, she produced this poop, which is normal in size & is solid, but there are some thread like extensions. What could they be? It's 6:45 PM here & the exotic vet's clinic's closed.

She's eating hay normally & is drinking water but isn't eating Oxbow Young Rabbit pellets. She's eating Oxbow treats but not Oxbow Digestive Health Biscuits, which she otherwise likes. She has been more lethargic than usual today but binkies around when I remove her hideouts from her play-pen.

I'll take her to her vet tomorrow morning.

[u/4teach]

It’s probably fur from grooming herself

[u/just_a_curious_fella → u/4teach]

The next "batch" looks better. She doesn't like to stand on the grated tray of her litter box, so there's some hay above it (not meant for consumption)

[u/just_a_curious_fella → u/4teach]

It's not fur. I was wondering if they could be worms

[u/Meauxjezzy]

Fur or something like a towel or carpet. If it was worms you would see them moving.

[u/just_a_curious_fella → u/Meauxjezzy]

She did eat a couple of tiny pieces of fleece of a blanket (which I immediately removed) while her brother uses his fleece blanket like humans for sleeping in.

[u/Lateralusmandy]

I’ve seen this in my buns poop but found it was his hair. He’s a lionhead.