The first sows arrived in late September at the hulking, 26-story high-rise towering above a rural village in central China. The female pigs were whisked away dozens at a time in industrial elevators to the higher floors where the hogs would reside from insemination to maturity.This is pig farming in China, where agricultural land is scarce, food production is lagging and pork supply is a strategic imperative.Inside the hulking edifice, which resembles the monolithic housing blocks seen across China and stands as tall as the London tower that houses Big Ben, the pigs are monitored on high-definition cameras by uniformed technicians in a NASA-like command center. Each floor operates li …
