how to put weight on rabbit?

[DuckyGurl]

Hello all! I have a Holland Lop rabbit, sweetest, fluffiest thing ever. She's skinny. I can feel her ribs through her "fluff", and her spine quite easily. She is free-fed pellets, and gets a huge handful of clover/dandelion greens every morning. What else can I do?

 

[UnlabeledMama]

Try adding apple cider vinegar to her water (1-2 tablespoons per gallon). It sounds strange, but it really helped with one of my rabbits.