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  Calculate logical breeding value by BLUP¹.

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  Remove PSS² gene in whole herds to reduce PSE³ pork.

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  Set up pork improvement system for high quality pork.

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  Maintain proper backfat thickness for longevity and robustness.

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  Select replacement breeding stock for high marbling by BLUP¹.

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  Maximize the genetic gain by the most number of performance tests in Korea.

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  Maximize the genetic gain by the most number of performance tests in Korea.

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  Separate calculation for maternal and paternal index.

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  Possess the largest number of breeding sows and artificial insemination boars in Korea.

BLUP¹ (Best Linear Unbiased Prediction)

PSE² (Pale, Soft, Exudative)

PSS³ (Porcine Stress Syndrome)