The rabbit from the sheffield floods is about 6 years old and his 2 friends are 5/6 years old!! he has lived on gerti for all his life thats how his owners have always fed him, he is a happy bunny apart from a bite from a rat which he arrived with and has had treatment for, my vet said although this wasn't ideal he wouldn't change the food as it may upset him and its not a problem to feed him gerti , He will be going back to his home soon!!! Maybe Nov !!
My own are fed excel and science but mainly eat fresh and hay although in the past i have fed rabbits on gerti or a mix like that, the last rabbit who lived on that was a french lop called Bojo who lived to be 11 years old which is old for a bunny, also My mum has just said she has fed her drawflops this for years and no vet has ever told her not to feed it to them , her bunnies are 10 and 13 years old and very healthy. although admittedly they eat more fresh and hay than the mix