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Genetics & Selection

Guides on epds & indexes, genomic testing, trait balance and breeding systems.

EPDs & Indexes

• Dry Matter Intake EPDs in Angus: What They Measure and How to Use ThemFeed is the biggest bill in most beef operations, and a sire's intake EPD is one way to manage it.
• How to Read an EPD Sheet: A Plain-English Guide for Angus BuyersExpected progeny differences predict what a sire's calves will do. Here is what each number means and how to use them without getting fooled.

Genomic Testing

• DNA Testing in Angus: Why Three Out of Four Registrations Are GenotypedGenomic testing has gone from novelty to the norm for registered Angus, and commercial herds can use it too.
• Genomic Testing in Angus: What GE-EPDs Add and When a Test PaysA DNA sample can make a young bull's EPDs far more reliable. What genomic-enhanced EPDs are, which tests exist and how to decide whether testing a heifer or a bull is worth the money.
• Why Sire and Dam Verification Matters for Genetic ProgressGenetic gain starts with knowing, not guessing, who the parents are.

Trait Balance

• Balanced Angus Selection: Why One Number Is Never EnoughSingle-trait selection tends to fix one problem and create another. A balanced program avoids the trap.
• Breeding Angus for Better Fatty Acids: What Research ShowsFatty acid composition has a genetic component in Angus cattle. Here is how large, and how it is used.
• Calving Ease and Growth in Angus EPDs: How to Weigh the TradeoffEasy calving and fast growth pull in different directions, and the right balance depends on your herd.
• Culling Females in an Angus Herd: How Selection Pressure Drives ProgressGenetic progress depends on which females stay and which go, and on being willing to say no.
• Low-Methane Genetics in Angus: Where the Research StandsResearchers are building DNA-based values for methane, but they are not yet a routine tool for buying a bull.

Breeding Systems

Guides in this section are being added.