Egg industry evolves with the times

A tour of the Hi-Grade Egg Farm in North Manchester, Ind., reveals new efforts aimed at improving food safety. Hens are sourced from hatcheries that are certified to provide chicks that do not carry salmonella and are vaccinated against the disease. Tightly sealing doors, new or refurbished henhouses and a manure-drying system are other measures intended to prevent the spread of salmonella.

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