Hens love to lay eggs when they eat fish heads with knives. Give a hen good food (protein) and she will lay eggs. The main nutrition for hens to lay eggs is protein, and the content of protein in sickle fish is high. The nutrition consumption of laying hens during laying period is relatively high, so the nutrition of feed should be sufficient. In order to improve the egg production of laying hens, corn, bean cake and fish meal are the main feed for laying hens in the market at present, and other additives should be added appropriately according to the actual situation.