Effects of Dietary Yellow Loess on Serum Constituents in Korean Rockfish, Sebastes schlegeli

황토 첨가 사료가 조피볼락의 혈청성분에 미치는 영향

  • 강동수 (여수대학교 식품공·영양학부) ;
  • 조영철 (전라남도 수산시험연구소) ;
  • 최옥수 (순천제일대학 식생활과) ;
  • 이영재 (여수대학교 식품공·영양학부) ;
  • 김해섭 (여수대학교 식품공·영양학부) ;
  • 배태진 (여수대학교 식품공·영양학부)
  • Published : 2000.06.01

Abstract

This study was performed to define the effects of various levels (0∼15%) of dietary yellow loess on serum constituents in Korean rockfish (Sebastes schlegeli). After seven weeks of feeding trial, hemoglobin, protein, albumin, triglyceride, cholesterol and bilirubin in serum were investigated. Chemical composition of yellow loess were composed of SiO2 49.80%, Al2O3 27.50%, FeO3 8.33%, CaO 0.09%, MgO 0.64%, K2O 1.62%, Na2O 0.12%, P2O5 0.20% and MnO 0.03%. Serum levels of total protein and albumin showed higher values the yellow loess addition groups than the control group, and the values of protein and albumin were increased with dietary yellow loess level. Serum levels of triglyceride and cholesterol in the groups fed yellow loess were lower than those in the group fed control diet. And these values decreased with dietary yellow loess level up 10%, then increased with 15% yellow loess diet. The values of bilirubin in serum significantly decreased with dietary yellow loess level up 10%, then increased with 15% yellow loess diet. Hemoglobin level from rockfish fed 7.5% and 10% yellow loess diet were significantly higher than those from fed the control diet.

고품질의 수산양식식품의 생산을 위한 기초자료를 얻고자 조피볼락의 사료에 황토5%∼ 15%의 농도로 첨가하여 7주간 사육한 후 혈청성분을 분석한 결과를 요약하면 다음과 같다. 황토의 화학 적 조성을 분석한 결과 SiO2 49.80%, Al2O3 27.50%, FeO3 8.33%, CaO 0.09%, MgO 0.64%, K2O 1.62%, Na2O 0.12%, P2O5 0.20%, MnO 0.03%를 함유하여 여러 가지 생리활성을 가지는 zeolite의 화학 적 조성과 유사한 다량의 무기질을 함유하고 있는 것이 확인되었다. 혈청중의 총단백질과 알부민 함량 은 대조구에 비하여 황토 첨가구에서 다소 높게 나타났다. 혈청중의 중성지방과 콜레스테롤 함량은 대 조구에 비하여 황토 첨가구에서 낮게 나타났으며, 황토첨가농도가 10%까지는 첨가량이 증가할수록 크게 감소하다가 그 이후는 다시 증가하는 경향을 보였다. 혈청중의 빌리루빈 함량은 15% 첨가구를 제외한 모든 실험구에서 대조구에 비하여 낮게 나타났다. 혈청중의 헤모글로빈 함량은 대조구에 비하여 7.5%, 10% 첨가구에서 높게 나타났으며, 5%, 12.5%, 15% 첨가구에서는 큰 차이를 나타내지 않았다.

Keywords

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