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DairyTalk 230: Index vs. Trait: The Most Common Genomic Misunderstanding - by Helmut Demmelhuber
Modern genomic data sheets provide an unprecedented level of detail – yet they are often misinterpreted. This article clarifies the fundamental difference between breeding values like RZG and genetic traits. While RZG reflects an animal’s overall genetic quality for production, health, and longevity, genetic markers function as binary risk indicators for defects, fertility haplotypes, or traits such as horn status and milk protein variants. Being a carrier does not disqualify an animal, but it requires strategic mating decisions. The piece shows why successful breeding depends on combining…
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