Animal Breeding

Which 4 sub-disciplines of genetics is involved in animal breeding?

• Mendelian/Classic Genetics

• Population Genetics

• Qualitative Genetics #9f00ff

• Quantitative Genetics #ff00a4

Why is genetics used in animal breeding?

• To improve yield and performance by determining which individuals become parents

• Reducing genetic defects to increase survivability

• Exploiting genetic resources to enhance adaptability

• To breed more efficient animals to reduce cost

What are the concern of livestock industry?

1. Yield (use of selection & mating)

   1. High number (eg egg production)

   2. Heavy body weight

   3. High volume (eg milk yield)

2. Adaptability (use of selection & mating)

   1. Survivability and reduced mortality

   2. Fertility and prolifically

   3. Disease resistance & parasite tolerance

3. Genetic disability (use of seletion)

   1. Presence of genetic defects

   2. Reducing frequency of congenital birth defects

What type of selection is used for breeding for show and give examples

Type of selection: Pedigree selection for qualitative traits

Examples: Ayam serama