I got my 2 ladies last month, 30th March. They are 4.5yrs age and not spayed. Apparently used by farm (breeding). I adopted them as the farm was closing. THey were groomed and had 'Revolution' given for mites. They were all good but for the past 3 days noticed of musky smell from their home (housed in cage+ playpen). Is the musky smell from the scant gland the rabbits be producing? i am very new to rabbits and as such not sure if need to groom them again. appreciate any advice from fellow rabbits family members here. tnks