Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effects of Organic Selenium Supplementation on Meat Quality of Hanwoo Steers

유기셀레늄강화버섯 폐배지의 급여수준에 따른 거세한우 채끝육의 육질특성

  • Park, Beom-Yeong (National Livestock Research Institute, RDA) ;
  • Cho, S.H. (National Livestock Research Institute, RDA) ;
  • Kim, J.H. (National Livestock Research Institute, RDA) ;
  • Lee, S.H. (Korea National Agricultural College, RDA) ;
  • Hwang, I.H. (National Livestock Research Institute, RDA) ;
  • Kim, D.H. (National Livestock Research Institute, RDA) ;
  • Kim, W.Y. (Korea National Agricultural College, RDA) ;
  • Lee, J.M. (National Livestock Research Institute, RDA)
  • Published : 2005.04.30
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Abstract

The current study was conducted to investigate the effect of organic selenium in mushroom cultured media (MCM) on beef quality. Each five of 20 Hanwoo steers(20 - 24 month, approximately 613 kg) were assigned to four levels of the selenium content(O.l, 0.3, 0.6, 0.9 dry matter based ppm), and the feeding treatments were enforced for 12 weeks. The results showed that m. longissimus from the 0.1 ppm feeding supplementation had greatly higher intramuscular fat content than other treatments(13.1 %). In meat color, the 0.1 ppm treatment showed the lowest lightness(CIE $L^*$)(P< 0.05) and had a tendency to have lower redness(CIE $a^*$). The treatment had no noticeable effect on moisture, protein, and ash content, cooking loss, water-holding capacity and purge loss. The 0.3 ppm treatment resulted in the toughest meat(assessed by WB-shear force) with 4.54 kg / inch', while other groups showed a similar toughness ranging from 3.3 to 3.7 kg/ inchl . Sensory characteristics in juiciness and flavor intensity had a tendency of increasing as organic selenium concentration increased, but tenderness was not influenced by the contents. The result indicated that the organic selenium feeding affects meat qualities to different extent, and further study is required to examine anti-oxidant effect of selenium in vivo.

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