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Influences of Feeding Seleniferous Whole Crop Barley on Growth Performance, Blood and Carcass Characteristics, and Tissue Selenium Deposition in Finishing Barrows

셀레늄함유 청보리 급여가 거세비육돈의 생산성, 혈액 및 도체특성, 조직 내 셀레늄 축적에 미치는 영향

  • HwangBo, Soon (Department of Animal Resources, Daegu University) ;
  • Jo, Ik Hwan (Department of Animal Resources, Daegu University) ;
  • Kim, Guk Won (Department of Animal Resources, Daegu University) ;
  • Choi, Chang Weon (Department of Animal Resources, Daegu University) ;
  • Lee, Sung Hoon (Gyeongsangnamdo Livestock Promotion Research Institute) ;
  • Han, Ouk Kyu (National Institute of Crop Science, Rural Development Administration) ;
  • Park, Tae Il (National Institute of Crop Science, Rural Development Administration) ;
  • Choi, In Bae (National Institute of Crop Science, Rural Development Administration)
  • 황보순 (대구대학교 동물자원학과) ;
  • 조익환 (대구대학교 동물자원학과) ;
  • 김국원 (대구대학교 동물자원학과) ;
  • 최창원 (대구대학교 동물자원학과) ;
  • 이성훈 (경상남도 축산진흥연구소) ;
  • 한옥규 (농촌진흥청 국립식량과학원) ;
  • 박태일 (농촌진흥청 국립식량과학원) ;
  • 최인배 (농촌진흥청 국립식량과학원)
  • Received : 2012.07.03
  • Accepted : 2012.11.21
  • Published : 2012.12.31

Abstract

The present study has been conducted to investigate the effects of feeding seleniferous whole crop barley (WCB) to finishing pigs on their growth performance, blood and carcass characteristics as well as on tissue selenium deposition. A total of 40 cross-bred barrows ((Landrace${\times}$Yorkshire)${\times}$Duroc) were allotted to five replicates of four treatments. Each replicate was arranged to 2 pigs per pen; the experimental period lasted for 6 weeks. The finishing pigs were fed diets containing 0.1 (non-seleniferous WCB as a control), 0.2, 0.4 and 0.6 ppm of selenium (Se) by supplementing the diets with seleniferous WCB. The isonitrogenous and isocaloric diets containing 5% non-seleniferous or seleniferous WCB were formulated. Feeding seleniferous WCB did not affect (p<0.05) the feed intake and BW gain. Total blood lipid concentration was significantly (p<0.05) decreased with increasing Se levels. Total blood cholesterol concentration for the control was significantly (p<0.05) higher than that for 0.4 and 0.6 ppm of Se treatments. Increasing the Se levels in WCB significantly (p<0.05) decreased blood triglyceride concentration; however, the levels increased immunoglobulin G and selenium concentrations. Feeding seleniferous WCB did not affect the carcass rate, backfat thickness and meat quality as well as yield grades. The Se concentration in the kidney, liver and loin were significantly (p<0.05) increased with increasing levels of seleniferous WCB. The results indicated that feeding seleniferous WCB may improve the blood characteristics related to lipid metabolism and thus, could produce selenium-fortified pork. Moreover, it is shown that the dietary optimal selenium level to depose selenium in porcine tissues by utilizing seleniferous WCB would be 0.4 mg of Se/kg of ration. Moreover, when 100 g of pork produced from pigs raised under such condition is served to consumers, it meets the minimum recommended daily requirements (40 ${\mu}g$) of dietary selenium proposed by the World Health Organization (1996).

Acknowledgement

Supported by : 농촌진흥청

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