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Nutritional Value of Soybean Meal from Various Geographic Origin and Effect of Their Dietary Supplementation on Performance of Broilers

원산지가 다른 대두박의 영양적 가치평가와 육계의 생산성에 미치는 영향

  • Lee, Bo-Keun (Animal Resources Research Center, College of Animal Bioscience and Technology, Konkuk University) ;
  • Kim, Jae-Young (Animal Resources Research Center, College of Animal Bioscience and Technology, Konkuk University) ;
  • Kim, Ji-Sook (Animal Resources Research Center, College of Animal Bioscience and Technology, Konkuk University) ;
  • You, Sun-Jong (Animal Resources Research Center, College of Animal Bioscience and Technology, Konkuk University) ;
  • An, Byoung-Ki (Animal Resources Research Center, College of Animal Bioscience and Technology, Konkuk University) ;
  • Kim, Eun-Jib (Division of Animal Care, Cheonan Yonam College) ;
  • Kang, Chang-Won (Animal Resources Research Center, College of Animal Bioscience and Technology, Konkuk University)
  • 이보근 (건국대학교 동물생명과학대학 동물자원연구센터) ;
  • 김재영 (건국대학교 동물생명과학대학 동물자원연구센터) ;
  • 김지숙 (건국대학교 동물생명과학대학 동물자원연구센터) ;
  • 유선종 (건국대학교 동물생명과학대학 동물자원연구센터) ;
  • 안병기 (건국대학교 동물생명과학대학 동물자원연구센터) ;
  • 김은집 (천안연암대학 동물복지계열) ;
  • 강창원 (건국대학교 동물생명과학대학 동물자원연구센터)
  • Received : 2009.03.09
  • Accepted : 2009.06.08
  • Published : 2009.06.01

Abstract

This study was carried out to investigate the nutritional value of soybean meal (SBM) from various geographic origins and the effects of their dietary supplementation on performance of broiler chickens. Nutritional value of dehulled SBM originating from USA, and non-dehulled SBM from India (IND), Argentina (ARG) and Korea (KOR) were evaluated by analyzing chemical composition, urease activity (UA) and KOH solubility, and determining true metabolizable energy (TME), nitrogen corrected TME (TMEn) and true amino acid availability (TAAA). The contents of crude protein ranged from 45.43% (ARG) to 48.47% (USA) and those of crude fiber varied widely from 3.48% (USA) to 7.12% (IND). The measurements of lysine varied from 2.79% (IND) to 3.09% (USA) and those of methionine from 0.56% (IND) to 0.65% (USA). The values of TMEn varied from 2986.6 kcal/kg (IND) to 3228.9 kcal/kg (USA) and the averages of TAAA were from 91.61% (IND) to 92.27% (USA). UA was found to be from 0.02 (ARG) to 0.04 (KOR, USA) and those of KOH solubility from 73% (ARG) to 84% (USA). A total of four hundred 20-days-old male broiler chicks were divided into four groups and fed with isocaloric and isonitrogenous experimental diets containing 27.5% of SBM and same amounts of lysine and sulfur amino acids for 15 days. Final body weight and body weight gain were the highest in birds fed with SBM from USA and lowest in birds fed with SBM from IND although the differences were not statistically significant. The feed/gain in chicks fed diet containing SBM from USA was significantly improved (p<0.05) compared to those of the other groups. There were no significant differences in carcass characteristics and the concentration of total cholesterol in serum among the treatments. The results of in vitro assay and bioassay agreed with the performance of broiler chicks, and thus there were close correlation between the broiler performance and the measured nutritive values of SBM. In conclusion, dehulled SBM from USA was superior to non- dehulled SBM from ARG and IND with regard to nutritive values.

Keywords

Dietary supplementation;Soybean meal;Broiler chickens

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