Hornless trait is a hot research issue in modem goat breeding,and hornless goat individuals have the advantages of not easy to fight and easy to manage in the rearing process.Therefore,hornless individuals are more popular than horned individuals in modem large-scale breeding.The paper introduces the research progress of hornless traits in goats,compares the production perfor-mance of hornless goats with that of horned goats,and outlines the inheritance law of hornless traits from the simple Mendelian def-inition of inheritance,individual phenotypic characteristics,and the relationship with intersex traits,the genetic locus and candidate genes for the hornless trait were described to provide a reference for the mechanism of hornless trait inheritance study.Problems of hornless traits and methods of early identification of hornless traits were pointed out,aiming to provide a reference for the breeding of hornless goats.
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