How is inbreeding advantageous as well as disadvantageous in cattle breeding programme? (Mention any two advantages and two disadvantages)

Explanation

Advantages:- Inbreeding is necessary if we want to evolve a pure line in any animal.
• It helps in accumulation of superior genes and elimination of less desirable genes
• Inbreeding exposes harmful recessive genes that are to be eliminated by selection.
• Where there is selection at each step, it increases the productivity of inbred population.
Disadvantages:-
• reduces fertility
• decreases productivity.