Just like in dog breeding, exotic animals have been subjected to selective breeding pressures designed to increase the chances of certain colouring or patterns. This is particularly common in reptile breeding of species such as royal pythons and leopard geckos. The success of the species in captivity has ultimately led to this craze which can fetch tens of thousands of pounds for highly sought after rare morphs.
A “normal”, also known as “wild type “ royal python.
Selective breeding does not come without problems. Many morphs are now linked to diseases associated with the genetics of that morph, the most commonly known is the spider royal python. Spider morphs all possess a “wobble”, a neurological dysfunction which varies in severity, but which is always present as it is a dominant gene. In severe cases the snakes continually corkscrew and star gaze, sometimes unable to feed by themselves. This is a huge welfare concern and poses the question as to whether this morph should be being bred from at all.
A morph known as a “bumble bee” containing the spider morph gene.
Rabbits too now face certain challenges due to conformational changes seen by breeding problems. Brachycephaly refers to a shortened facial confirmation and is seen in dog breeds such as Pugs and French Bulldogs. This facial deformity has been shown to lead to respiratory compromise known as BOAS (brachycephalic obstructive airway syndrome). While no condition has been proven in rabbits, breeds such as the mini lop possess a similar flattened face and narrowed nostrils. Research is currently being conducted to see whether there is a link between higher disease incidence in these breeds. So far no link has been determined but, anecdotally, it does appear the smaller, flatter faced breeds do have more problems relating to both dental and upper respiratory tract disease.
A brachycephalic rabbit, compare to the rabbit’s facial length below.
Note the much longer snout on this rabbit which more closely resembles the wild hare.
I will always advocate rehoming over breeding but responsible breeding is vitally important in protecting our animals from suffering with congenital diseases or confirmations which predispose them to problems later in life.
Rehome where you can or buy from breeders responsibly and report any breeders who give you concern.
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