The emergence of precision fermentation and cultivated meat offers potential to dramatically reduce farm animal numbers, with welfare implications for both transition management and long-term outcomes.
The precision fermentation and cultivated meat revolution carries significant welfare implications that extend beyond the obvious reduction in animal use. If these technologies achieve market scale and displace conventional animal products, the welfare benefit is potentially enormous: billions fewer animals per year experiencing the welfare compromises of intensive production. However, the transition period raises complex welfare management questions. As demand for conventional animal products falls, farm animal industries will contract - but the pace and manner of contraction affects how many animals are born into systems that may be reduced in scale without being reformed. A rapid transition that reduces demand faster than the industry can adapt may lead to welfare deterioration in residual systems as economic pressure increases. A slower transition gives time for welfare improvements but means more animals experience poor welfare for longer. Cultivated meat production requires initial biopsy procedures from donor animals and, in some designs, the use of foetal bovine serum in cell culture medium - animal welfare concerns that the industry is actively working to eliminate. The long-term welfare vision of a world where animal products come primarily from precision fermentation and cultivated meat, rather than living animals, represents a profound positive welfare outcome if achieved.