Wima Hunting Dog (detail introduction)
The Chinese name of CHD is the dog "hip developmental disease". The disease has high heredity. Many dogs have this disease because of inheritance. Therefore, dogs with the disease are not recommended. By the breeding. Then let's take a look at the basic situation of this disease.
CHD is normal hip joint after birth, but because the bone grows too fast, muscle growth cannot keep up, which causes the femoral head to be led to the spleen acetop joint by the muscles. (Betal) Between the spheres), we must be able to be closely integrated with each other during the entire growth period, that is, the spleen acetabus must be deep enough. Small and perfectly combined.
Because the hip joint is an important joint of weight, it is mainly composed of the structure of the sphere and the cavity nest. The hip joint connects the pelvis with the lower limbs. The part of the sphere is the endpoint of the femoral (thigh bone), and the cavity nest (spleen acetabeds) is part of the pelvis. The joint of a real sphere and the cavity nest can be used in three -dimensional direction, but the hip joint of the dog is not an joint of the relationship between ordinary spheres and nest, because it can have free movement in the fourth dimension direction. : The head (sphere) of the femur can leave the spleen movement out.
Although it is the most special place in this joint (which can make the connected attached limb for any direction), if the joint becomes too relaxed, problems may occur. Because when the head of the femur is shifted too much to the outside, and when it leaves it originally in the spleen acetraphy, this will cause the hip joint to produce greater compression and abnormal friction when weighing weight.
Therefore, the spleen nest is not developed deep enough and the femoral head of the femoral head is not formed and combined with relaxation. The sphere on the femoral head is very easy to leave the normal position in the spleen aphrodisiac. Large pressure and abnormal friction will cause pain and joint damage and degradation of the dog.
Strictly speaking, CHD is a degenerative deterioration of the hip joint caused by many common diseases. This disease is generated by genetic genes, but due to multi -gene (involved multiple groups of genes), there are commonly used. The genetic characteristics and multi -factor (affected by many non -genetic factors). Therefore, it is a very complicated genetic disease. According to relevant research, even if it is a dog without CHD, it is possible to produce dogs with CHD diseases, because the surface symptoms do not show CHD genes. Related studies also show that the acquired environment and breeding factors will not produce CHD and cannot prevent CHD from occurring, but it will aggravate or slow down the symptoms of CHD.