One of the main reasons why intentional breeding of dapple doxies is so controversial is the fact that double dapples have bad health outcomes. In addition to the normal health issues suffered by normal weenies, these dogs have to deal with the risk of other congenital illnesses as a result of the merle gene.
For some perspective, let us look at what a double dapple may have to suffer.
Due to the merle gene
Double Dachshunds face a high risk of being borned with absent or malformed eyes, congenital blindness, glaucoma, as well as cataracts that may develop later on in life. This is more likely to happen with double dapples with blue eyes.
The merle gene affects pigmentation processes involved in the development of the auditory system. In addition to congenital deafness, the dog may also suffer abnormalities of the ear lobes including odd shapes and sizes or complete absence of the lobes.
Common to doxies
Intervertebral disk disease
This is associated with spinal cord issues like compression and prolapse that in addition to being excruciatingly painful may also affect the mobility of the dog. If not dealt with promptly, the pooch may even end up completely paralyzed.
This is associated with back and joint issues, the dog’s high appetite and an overall high risk of weight issues common with small dogs. Fixing the problem should be a high priority before complications like diabetes and heart disease set in.
This includes skin cancers, hemangiosarcomas, reproductive system tumors and many others that are among the leading causes of death in doxies.