Breeding cattle that are genetically hornless eliminates the need for painful dehorning procedures, representing one of the most straightforward welfare improvements available to the cattle industry.
The case for polled genetics is straightforward from a welfare perspective: it eliminates the need for a painful procedure entirely, rather than simply managing its pain better. Traditional selective breeding for polled traits is entirely acceptable without regulatory complication but takes several generations to achieve full penetration in a herd. Gene editing technologies that introduce the naturally occurring polled variant more rapidly are scientifically equivalent but face consumer scepticism about genetic modification. Regardless of the method, transitioning herds to polled genetics represents one of the most direct welfare improvements the cattle industry could make.