[mylissyk]

They have no idea who the dad was. It seemed odd to me that the testing lab would say there were two pure breds involved - what are the chances of two people who went to the trouble of getting a pure bred dog (as was mentioned above pure rotties are not easy to find) also letting them roam free, unaltered!

There is an extremely high probability that a pure bred dog can be allowed to run loose, happens with astounding regularity. Obviously they allowed their pure bred, Golden Retriever female, in heat outside unsupervised, and a black intact male dog came to visit.

However I see Labrador in your puppy. I would doubt Rottweiller. The black dog in this picture is my spaniel mix, she is 30 lbs and 16 inches tall at the shoulder. The Wisdom Panel DNA test I did on her said she was Saint Bernard X German Shepherd. I wouldn't put a lot of faith in dna test results.

 

[mylissyk]

Um, question here: You say they have no idea who the sire is. So why would you think it was a Rottie?

She ran a DNA test and got Golden Retriever x Rottweiller