i fed my springer her normal diet but from about 4 /5 weeks into pregnancy she started to be a fussy eater some days she wouldnt eat anything. obviously being worried i took her to the vets and they said she will eat when she was hungrey they also gave me some of their expensive high protein diet but that gave her an up set stomach. so i got in touch with my breeder and she said let her have some quiche and also chop up kidneys and liver fried , so i started to feed her with that so at least she was having something. when she got to 6 weeks into pregnancy i also started to give her puppy milk twice aday, for the rest of her pregnancy she still didnt really eat very much, she went onto have a really fast easy welp and had 7 beautiful pups, she never eat a thing for 2 days after the pups were born not even her puppy milk. but then she started back to normal and regain her weight loss very quickly. at least when i breed her again i know this is normal for her i wont waste my time at the vets unless nessesary.