Simplest and Most Common Basis of Selection

Correct Answer: Individual Selection

From the notes: Individual selection (mass selection) is described as the simplest, most rapid and most commonly used basis of selection.

Properties of Individual Selection (from notes)

• Simplest: No family or progeny data needed
• Most rapid: Shortest generation interval of all selection methods
• Most commonly used: Practical and easy to apply in field conditions
• Animals selected on basis of their own phenotype
• Most accurate aid to selection (direct estimate of breeding value)

Most Effective When

• Heritability of trait is HIGH
• Trait is expressed in both sexes
• Trait can be measured on the live animal

Also Known As

Individual selection = Mass selection = Performance testing = Phenotypic selection