Re: Genetics 1-A
Hey everyone
Poultry as well as other species of livestock are somewhat line bred.
For instance in the poultry industry we breed with a straight pure male
line, while on the female side is quite different. We have four possible
outcomes of which three of the four are vital to the species. FF, MF,
FM, MM. Lets say that FF is a feminine female needed for egg production
and MF is a macho female used for the production of meat, yet will not
carry the species because of the lack of egg production. FM is a
feminine male, which has no importance what so ever and the MM is a
macho male used to with both of these females. It is the best of both
worlds getting the eggs to continue the species, while having the weight
to be productive. Genetics is like a tree with its branches and each
decision up the tree leads to a new branch. In the late 80's the
industry went so far on the production side with heavy birds for breast
meat that we lost much ground in genetics having to climb back down the
tree before the limb breaks. Heavy birds with little emphasis on
skeletal structure will soon collapse. While crossing different members
increases vigor it also increases variability because of the increase in
genetic info, on the other hand inbreeding increases the great genes and
predictability it also increases your bad traits. After a given time in
any animal operation one must bring in new male stock to avoid a crash
3-5 years, plants???. Having started a show sheep herd and talking to
other well known breeders; the success is in a tight wound herd using
family prodigy close together ( sons , mother, cousins, sisters). In the
turkey industry we our growing a third generation bird, which is the
fastest and most efficient of the three generations, but crossing two of
the third generation birds together gets you too huge variations where
little predictability. What makes AG's grow is no different from birds.
Genetics, Nutrition, and management, all must have equal importance.
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