How to solve the problem of Dugao dog's low front and high back?

The reason why some dogs are low in front and high in back is that their hind legs are too straight, which is a defect. One is that their hind legs are too straight, which is inherited by nature, and the other is caused by calcium deficiency. Efforts should be made to feed on time and patiently, and more calcium nutrition should be given to dogs, which will help them recover.