Techniques and Methods!
Various methods for selective breeding exist, from high-tech and
costly processes such as in-vitro fertilisation or genetic engineering to more
simple low-cost techniques that rely on the selection and controlled mating of
animals based on observable characteristics.
There are three main approaches to selective
breeding:
1) Outcrossing- Mating two animals that are unrelated for at least 4 to 6
generations back is called an outcross. This method works best when the genetic
variation for a trait is high.
2) Linebreeding– Linebreeding involves mating related animals like half-brother/half-sister, cousins, aunt/nephew,
and other more distant relationships.
3) Inbreeding- This breeding method involved mating directly related
animals, like mother/son, father/daughter, and full brother/full sister (full
siblings). This method is used generally to create uniformity and prepotency
(the ability of this process to continue) and to force out latent weaknesses
from the gene pool.
costly processes such as in-vitro fertilisation or genetic engineering to more
simple low-cost techniques that rely on the selection and controlled mating of
animals based on observable characteristics.
There are three main approaches to selective
breeding:
1) Outcrossing- Mating two animals that are unrelated for at least 4 to 6
generations back is called an outcross. This method works best when the genetic
variation for a trait is high.
2) Linebreeding– Linebreeding involves mating related animals like half-brother/half-sister, cousins, aunt/nephew,
and other more distant relationships.
3) Inbreeding- This breeding method involved mating directly related
animals, like mother/son, father/daughter, and full brother/full sister (full
siblings). This method is used generally to create uniformity and prepotency
(the ability of this process to continue) and to force out latent weaknesses
from the gene pool.