Sometimes the runts of the litters will catch up to their siblings by 8 weeks. The last born are usually the smallest, but they don't always remain that way for long. I would have a complete blood work panel done when you get her and see if anything points to a liver shunt and, if so, have the bile acid test done. Of course, have the normal fontanel, knees, hernia and heart check performed.
A runt from a litter that is going to mature to 5 - 7 pounds is very different than a runt from a 3 - 4 pound litter. All of mine have matured to 4 pounds (one just a couple of ounces shy) and they are all healthy. I think the percentage of health problems does increase somewhat with 3 pounders and increases drastically with those under 3 pounds at maturity.
According to my little boy's weight at 8 weeks (9 oz.) he should have matured at 2 pounds, but he is just 2 ounces shy of 4 pounds and is very healthy. |