hi my first time doing this. its just my dog has already given birth 4 weeks ago and she seems to be losing her fur not much but with closer inspection anybody can see it. also she looks to skinny. i can totally make out her ribs from different angles and her spine as well. she eats insane amounts of foods and sometimes she still feeds the puppies. they are starting to eating regular food. my female eats puppy food for lactating dogs and weaning puppies. no stupid comments please.
Has she been wormed lately?If not i would get that taken care of you can take stool sample in to vet to be checked but it would probably be best to have her vet checked .I sprinkle powdered milk on moms food not a lot but i use calfs milk from feed store.they have all animal milk for dog,horse,sheep ect.I start that after welping,they loves it and it keeps them at a good weight.
In addition to the deworming, make sure she's getting all she can eat, and she may need a better quality food if it's possible for you to afford it. Unless you've gotten clean fecals deworming her and the puppies is something you should probably do.