Advances and constraints in conventional breeding of pigs John Corner

Advances and constraints in conventional breeding of pigs John CornerTraditional methods of genetic improvement, both through selection programmes and proper use of breed differences and heterosis, have been effective in improving production efficiency. This improvement has been realized primarily in reproductive performance, growth rate and carcass composition. This chapter begins with a historical overview of advances in pig breeding from the end of Second World War. There remain needs for improvement in traits

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