Fecha de publicación: 30/09/2022 Fuente: WIPO Meat The invention discloses a hybridization improvement method for improving reproductive performance of Miyi dwarf chicken, which comprises the following steps of: introducing a dwarf gene carried by a sex chromosome to replace a lethal dwarf gene carried by an autosome through multi-stage hybridization of the Miyi dwarf chicken and meat type and egg type chicken breeds; the characteristics of'short-foot 'appearance, excellent meat quality and flavor and grain saving of the Miyi dwarf chicken are reserved, the prematurity, the egg yield and the hatching performance are improved, the reproductive performance is greatly improved, all individuals of the offspring are in a short-foot type, and the commodity value of chicks is improved; and digitization and refinement of a local chicken breed hybridization improvement means are realized, the bred breed is particularly suitable for large-scale breeding, and the method has important significance for promoting high-quality development of the poultry industry and promoting village industry revitalization.