Complex sentence: Hip dysplasia, though occasionally seen, is usually mild and does not usually result in lameness due to the breed's typically muscular build; however, responsible breeders use OFA or PennHIP evaluations to ensure that their breeding stock's hips are healthy.
Split into simpler sentences: Hip dysplasia, though occasionally seen, is usually mild and does not usually result in lameness due to the breed's typically muscular build. However, responsible breeders use OFA or PennHIP evaluations to ensure that their breeding stock's hips are healthy.