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Whitetail Abnormalities
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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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