In part, the technology is different. Scientists have developed gene-editing techniques that will soon enable breeders to produce animals that are resistant or immune to serious livestock diseases. The Roslin Institute in Edinburgh has successfully produced pigs that were resistant to Porcine Reproductive and Respiratory Syndrome Virus (PRRSV), and if current trials go to plan, PRRSV-resistant pigs could be approved for farms in three to five years. But the technology is not yet ready for large-scale commercial use.
Scientists have developed gene-editing techniques that will soon enable breeders to produce animals that are resistant or immune to serious livestock diseases. The Roslin Institute in Edinburgh has successfully produced pigs that were resistant to Porcine Reproductive and Respiratory Syndrome Virus (PRRSV), and if current trials go to plan, PRRSV-resistant pigs could be approved for farms in three to five years. But the technology is not yet ready for large-scale commercial use.