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Changes rate in selection of Yorkshire pig for productive traits using the integrated test records among GGPs
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 Title & Authors
Changes rate in selection of Yorkshire pig for productive traits using the integrated test records among GGPs
Cho, Kwang-Hyun; Kim, Sung-Hoon; Park, Kyung-Do;
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Heritability estimates for daily gain (g), backfat thickness (mm), days to 90kg (day), loin eye depth (mm) and meat percent (%) were 0.40, 0.44, 0.40, 0.25 and 0.48, respectively. Estimates of correlation between breeding value and rank for meat productivity traits by model 1 and 2 were 0.995 1.000 and 0.991 1.000, respectively and highly significant (p< 0.0001), and they were almost identical to the breeding values estimated by different farms. When top 5% and top 10% animals were selected by meat productive traits at different farms, markedly different animals were selected by farms since the selected improvement traits in each farm maintaining closed herds were different. Therefore, it seems to be desirable that superior pigs should be selected after the establishment of evaluation system for genetic performance at national level using the integrated data obtained from various farms.
Backfat thickness;daily gain;days to 90kg;loin eye depth;meat percent;
 Cited by
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