Two Easy Ways to Start Earning Rewards!
Earn 2X Pals Rewards points at Petco
when you use Petco Pay!
Updated on September 23rd, 2025
Pet's info: Dog | Jack Russell Terrier | Female | unspayed
I have a litter of 4 jack Russell puppies, they are 13 days old and I am concerned about 1 of the pups. 3 of them are 330g-360g but the tiny one in the litter is only 150g - it seems to be feeding fine and I have started allowing the puppy to have exclusive feeding time but weight gain is not appearing. Would you recommend additional feeding via formula milk?
1 Answer

Answered By Kevin Sanada, DVM
Veterinarian
Published on December 29th, 2017