Very underweight 8 month old pup
I adopted Maple from the SPCA a week ago, she is very underweight. She should be I am guessing at least 20# heavier. I need to find her adoption folder which lists her weight, but she is all ribs right now. The trainer approached me about her weight after class on Saturday as she was concerned. I am free feeding her the food she was being fed at the shelter, Taste of the Wild, Lamb but I feel I should have her on a puppy food. I did find ticks on her, not sure if they could have caused a problem somehow. She was wormed at the intake clinic, she was also spayed approx 3 weeks ago. I am adding fish oil to her food and also organic roasted chicken. I will take her into petco tomorrow and weigh her, I will also start a spreadsheet to track her weight gain.
Are there any specific things I should be concerned with? She is very active and acts healthy. She just has a high anxiety level since she was dumped by her previous caretaker and frets every minute over where I am and if I am leaving her. Her breathing is also very fast when she is sleeping/resting.
I found this info online, not sure if it is a correct guideline or not?
GSD Female 8 months 53 – 57 lbs / 24 – 26 kg
Thanks for any input!