Estimation of Genetic Relationships among Milk Records for First Three Lactations Using Reml for an Animal Model
نویسندگان
چکیده
SUMMARY In dairy cattle breeding, genetic relationships among lactatio are of special interest because most selection operates on first la: This selection also complicates estimation of genetic Techniques which give estimates unbiased by selection should Estimation was done using EM-type REML for an animal relationships across herds. Records were from 3,070 Holstein cows the first lactation recorded. Estimates after 217 rounds 2 of i heritabilities and genetic correlations we:e:.
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