Polymorphism is found in almost all livestock animals including poultry and occurs at all levels of genetic organization from DNA sequence to major morphological traits in livestock animals. Genetic polymorphism contributes to the phenotype variability in animals and is an essential component of genetic improvement of the livestock animals. The genetic variations in livestock animals for meat production create a great interest to the researchers and had been used by them in Marker Assisted Selection (MAS) to identify animals with specific beneficial production traits and there after selecting mating pairs based on these traits. |
