Blindness or deafness in the dapples is not as common as you think and rarely occurs when one of the parents is not a merle/dapple. It is also linked to blue eyes in the merles, so if she is brown eyed the problem occurring is pretty small odds. The biggest problems occur when merle to merle breeding is done. If you can take the pup away from the others for a few minutes and see if she follows your fingers and if her pupils shrink or dilate with light this will go along way to relieving your fears. As for deafness...there are more accurate tests given by vets but clapping your hands or a loud noise/startle response will also tell you if she hears okay.
I would recommend you ask the breeder to keep the pup until 10 weeks, if not to see how she "develops' but also to encourage better socialization and bite inhibition learned from mom and littermates.
Good luck with your new pup.
I would recommend you ask the breeder to keep the pup until 10 weeks, if not to see how she "develops' but also to encourage better socialization and bite inhibition learned from mom and littermates.
Good luck with your new pup.