We had the same problem when we first got Khaleesi. She had HORRENDOUS worms, mostly threadworms and roundworm, I hope you never have to clean one of those bad boys up! We had to worm her every two weeks for AGES!
The other reason is that Huskies don't need much food. Make sure that you feed them a good quality, grain free food, the best quality you can afford. I personally feed mine on raw as she vomits all the time when she is on kibble. She now does lovely little poos that don't smell, unless she's raided the bin
I would suggest doing what everyone else has suggested with the rice, and then if you put them back onto kibble play around with the quantity, so keep dropping the portion size down until they are a bit more solid
good luck!