I have a 9 month old cross between a german and belgian shepherd dog,as with all that type of dog there ears normanly stand up showing that the dog is alert,my dogs ears are rarely up like that.both her parents ears stand up normanly like a shepherd dog does,can anyone tell me is there anything I can do for this as I was told bye someone she might have a protein deficiancy,otherwise she's a happy healthy dog,please reply if there is anything I can do.thank you.