• Breed improvement is an important factor that can be done because it can achieve high animal production.
• The main objectives of breeding are to increase economy and disease resistance.
• For example, by breeding a local pig with an imported pig, the piglets inherit the long body and fast growth rate from their father and the resistance to weather from their mother.
• Inbreeding between boar and piglet, sow and piglet, females and males piglet in the same litter, etc must be absolutely avoided (inbreeding).
• The sow pigs selected from the above breeding can be bred with imported boar that related breed.
• Industrial pig farms use this breeding system for 4-5 generations to reach the desired breeding stock.
Figure: Characteristics Hybrid breed