Green shell laying hens have strong disease resistance and wide adaptability, and there is no difference between feeding management, epidemic prevention and disease removal and ordinary domestic chickens. Experts predict that green shell laying hens will not meet the market demand within ten years, and will gradually replace ordinary eggs, with huge market potential and attractive breeding prospects.

Green-shell laying hens are small in size, with adult cock weight 1.5- 1.8kg, hen weight1.1.4kg, laying eggs one year160-180kg. The ability of resisting environmental change of this kind of chicken is obviously higher than that of ordinary domestic chicken, and it can be cultivated in both north and south. It is a national germplasm resources protection project and a national key protected variety.

Princess chicken is genetically stable, and its propagation method is exactly the same as that of native chicken. Can be stocked, can be caged, 8 chickens per square meter. Mild temperament, good anti-stress ability, not easy to get chicken plague, suitable for large-scale and family feeding. The adult cock weighs about 3-3.6 kg, and the hen weighs about 2.5 kg. The ratio of male to female is 1: 5. After six months of feeding, each hen lays 170- 180 eggs a year, which has the characteristics of low feeding cost, large market sales and high profit.

The two kinds of chickens are comparable in disease resistance, egg production and meat quality, but the princess chicken is slightly better in weight.