The application discloses a method for screening superior parents of
carp with high total content of polyunsaturated fatty acids. The method comprises obtaining training characteristic data and training target data, wherein the training characteristic data comprises SNP
genotype information of training samples, and the training target data comprises total content information of polyunsaturated fatty acids of the training samples; training a
ridge regression model by using the training characteristic data and the training target data to obtain a prediction model; obtaining SNP
genotype information of a to-be-tested sample; obtaining a breeding value of the to-be-tested sample according to the SNP
genotype information of the to-be-tested sample and the prediction model; and screening superior parents of
carp with high total content of polyunsaturated fatty acids according to the breeding value. By the method, the breeding value of the to-be-tested sample can be directly obtained according to the SNP genotype information of the to-be-tested sample and the prediction model, and then the superior parents of
carp with high content of polyunsaturated fatty acids can be screened from the to-be-tested sample, thereby providing excellent materials for new
germplasm identification and breeding of carp.