I'm not a big fan of everbody reallylimiting pellets unless the bunnies aren't eating a lot of hay and theyneed encouragement to do so, or they're chubby, or you're mostlyfeeding them veggies.I also prefer that my bunniesare if anything just a touch chubby, I like just a bit of a buffer incase they stop eating.
I would gage how much they seem to wantat a feeding (justonce a day) andgive them that, but withno leftoversallowed.The rest of the day it's hay andveggies.
I actually only give mine a the small, recommended amount of pellets,but that's with HUGE bunnies salads with multiple veggies.HUGE bunny salads.
I'm not sure that cucumber is a great veggie, though. Are yougiving them a good variety? Lots of dark green things and one ortwoother coloured choices? I also don't agree thatyou should avoid broccoli and cauliflower, just make sure it'sintroduced slowly and it doesn't give anybunny gas. (All fiveof mine are fine with both). And carrots are fine, just not aton of them.
I also don't see anything wrong with alfalfapellets,especially if they're eatinga lot of Timothy hay.And alfalfa hay isn't that bad, if it comes down to alfalfa or nothing,I'd go with the alfalfa, especially with the bunnies being under a yearold. Timothy Hay and Timothy Pellets were initiallybeing hawked because 'less active' bunnies need higherfiberthan what's available, and a lower proteinrate. If you have a young bunny who eats lots ofhay, anyway, or an older bunny that's not overweight and/or and scootsaround the house a lot, you don'tneedto worry.
I agree that a vet should check them out. There could be other things going on with them.
The vet maywant to know the type of hay and brand of pellets, too, can you call the place you got it from and ask?
sas