The backyard breeder is not aware of breed problems, and doesn't care. (westieclubamerica.com)
However, if you are a dog breeder, flaxseed and flaxseed oil have been associated with failure to conceive, smaller litters, and other breeding problems. (dogfoodinsider.com)
When possible, it is recommended to research familial and breed problems before purchasing a puppy. (okcpetsmagazine.com)