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Whitetail
Abnormalities -
Albino, Piebald, and Melanistic Whitetail Deer
Albino:
Albinism is a recessive trait found in mammals, birds, reptiles,
fish and even plants. These plants and animals do not have
the gene for normal coloration and do not produce the enzyme
responsible for skin, hair and tissue coloration. Albinism
is the total absence of body pigment. The eyes of an albino
are pink, because blood vessels behind the lenses show through
the unpigmented irises. As you might guess, albinism is not
a desirable trait for either predators or prey species. Being
totally white year-round makes concealment difficult. Also,
many albinos have poor eyesight. In the game of life, where
survival of the fittest is the rule, albinos have a strike
against them from the start. Perhaps that is why albinos are
rare. Because albinism is a recessive trait, both parents
must carry the gene before it can occur in their offspring.
An albino deer bred to another albino would have only albinos.
An albino bred to a normal deer with no recessive genes for
albinism would produce all normally pigmented deer. Offspring
from this cross would carry the recessive gene for albinism
but would be normally colored. When carriers of albinism breed
there is a one-in-four chance they will produce an albino
fawn. Recessive genetic traits typically become less common
unless they confer a survival advantage or are artificially
enhanced through selective breeding. One deer in 30,000 is
an albino. Not all white deer are true albinos. Some white
whitetails have normally pigmented noses, eyes and hooves.
This is a genetic mutation for hair color but not other pigments.
Piebald: Piebald deer have patches of white
hair but are otherwise normally colored. Piebalds are thought
to be more common than albinos. Depending on what part of
the country you are from these deer are sometimes referred
to as pintos and come in various amounts of white and brown.
Melanistic: Melanistic deer are very dark
sometimes even black. Melanism results from overproduction
of pigment and is less common than albinism. Hunters see dark
deer with some frequency but to actually see a Melanistic
deer is rare.
NOTE: Protecting albinos, piebald and melanistic
deer from hunting would have no biological impact and probably
would not result in an increase of these traits
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