Green-Shelled Eggs Produced By Black Chickens

A farmer named Zhao Shan is producing green-shelled eggs from 'five-black' chickens, whose skin, feathers, meat, bones, and organs are black. Zhao Shan meticulously sorts the eggs, ensuring only uniform, blemish-free green-shelled eggs are packaged for sale, with options for 10 or 20-egg boxes designed for shipping. Wang Jingui has been raising black chickens for over a decade, a practice that resolved his wife's health issues and made him a local expert. Zhao Shan personally oversees the sorting process to ensure eggs are uniform in size and free of surface blemishes. The process avoids the use of hormones and antibiotics. The eggs are packaged in various sizes, including 10-count and 20-count options for express delivery. The chickens are fed certified sterile grains without the use of hormones or antibiotics. The production process involves manual inspection to remove eggs with scars or irregular sizes. Workers manually sort the eggs by size and appearance to ensure uniform quality for packaging. Eggs are sorted for packaging, with imperfect ones removed to ensure customer satisfaction. The exact cause for the green eggs remains unclear. A breed known as 'Wu Hei Ji' chickens produces eggs with green shells, distinct from typical eggs.