I really hope they let you have the dad. He'd be better off with you, plus you are the only one that seems to really care about him and making sure he is ok.
It is a possibility for a rabbit to die of loneliness/depression if it decides to stop eating, after it's friend dies. He could be a little depressed or lonely, with his son gone, but as long as he seems happy to see you, and keeps eating, he should be ok.
I don't know that anything bacterial, is going to affect the hind limbs like what was going on with him. It sounds like he may have had bladder sludge, from what you described, but I don't know that it had anything to do with his death. Given the symptoms and rapid deterioration, I'm thinking e. cuniculi or poisoning. For it to be poisoning, it would have to be something only the baby was able to get a hold of and eat. Someone on here once had their rabbits eating poisonous mushrooms in their yard, that was causing hind limb paralysis, but I can't recall if any of them died.
E. cuniculi is a protozoa that can attack the brain, the nervous system, and/or the organs. It can progress slowly or rapidly. Many rabbits are carriers of it, but not all rabbits will be affected by it. My guess would be that it was e. cuniculi that caused this. Poisoning is a possibility, but considering the dad is ok, not as likely.
It is a possibility for a rabbit to die of loneliness/depression if it decides to stop eating, after it's friend dies. He could be a little depressed or lonely, with his son gone, but as long as he seems happy to see you, and keeps eating, he should be ok.
I don't know that anything bacterial, is going to affect the hind limbs like what was going on with him. It sounds like he may have had bladder sludge, from what you described, but I don't know that it had anything to do with his death. Given the symptoms and rapid deterioration, I'm thinking e. cuniculi or poisoning. For it to be poisoning, it would have to be something only the baby was able to get a hold of and eat. Someone on here once had their rabbits eating poisonous mushrooms in their yard, that was causing hind limb paralysis, but I can't recall if any of them died.
E. cuniculi is a protozoa that can attack the brain, the nervous system, and/or the organs. It can progress slowly or rapidly. Many rabbits are carriers of it, but not all rabbits will be affected by it. My guess would be that it was e. cuniculi that caused this. Poisoning is a possibility, but considering the dad is ok, not as likely.