i am just starting out on a raw diet for dexter also...if you are feeding just the beef maybe feed an egg with shell also? someone correct me if im wrong, but i thought i read that if you can feed bone to suppliment with egg shell....dexter loves tham anyway!
as myfairlacy said above, dexters poops are almost white now that im feeding raw and others ive talked to say the same thing. if your babies is very dark, there may be an underlying problem..
i hope you get some help on this. i know none of us like to see our babies with upset tummies