Swiss Brown Swiss in different environments: Does GxE play an important role?

Estimations of genotype by environment interactions have been carried out for Brown Swiss dairy cattle in Switzerland. Yield traits were considered as different traits in different environments. Genetic correlations were then estimated for the same trait in different environments. First results from bivariate analyses showed that genotype by environment interactions might exist in the investigated population, especially for fat yield and protein yield. Further analyses are needed to prove genotype by environment interactions in Brown Swiss cattle in Switzerland