Mozart and mood lighting for healthier chickens

Yong Peng, Malaysia

IN BARNS filled with classical music and lighting that changes to match the hues outside, rows of chickens are fed a diet rich in probiotics, a regimen designed to remove the need for the drugs and chemicals that have tainted the global food chain.

As food giants face growing pressure to offer healthier produce, South-east Asian poultry firm Kee Song Group said that its use of "good" bacteria in feed and water means that it can meet one the industry's biggest challenges: how to mass produce drug and hormone-free poultry at a reasonable price.

A series of scandals in the last few years from melamine-tainted milk powder in China, horse meat suppl…