Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Effects of Pork on Cadmium Detoxification in Rats

돼지고기 급여가 흰쥐의 체내에 중독된 카드뮴의 해독과정에 미치는 영향

  • Published : 2005.12.01
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Abstract

This study was performed to investigate the effect of pork on the cadmium detoxification in rats. Ninety male Sprague-Dawley strains were divided into five stoups based on cadmium treatment(0, 25, 50, 100, 250 ppm) and cadmium intoxication was observed for 8 weeks. During following 8 weeks, casein was replaced by Pork and the effect of pork was compared with casein. During intoxicating, the growth mte was lessened. Feed efficiency ratio was significantly low, as cadmium intake was high Discontinuing cadmium feeding, the body weights were relieve4 Pork-fed groups seemed to have higher body weight than casein-fed groups. During intoxication, hemoglobin and hematocrit were dependent upon cadmium intake. However, they became normal at detocification stage. Cadmium accumulation of the pour-fed group was lower than that of casein. Especially, the factors which affected the cadmium content in kidney were Cd(p<0.001) and $Cd^*pork(p<0.001)$. Metallothionein(MT) was increased with cadmium, and MT was not likely to be affected by pork. This study may provide scientific background of pork for detoxification from heavy metals such as cadmium.

돼지고기 섭취가 카드뮴에 중독된 쥐의 대사에 어떻게 영향을 주는가를 규명하고자 이 연구를 수행하였다. 카드뮴(0, 25, 50, 100, 250 ppm)을 사료에 섞어 8주 동안 급여하여 일단 중독을 유발시킨 후 또 다시 8주 동안 돼지고기에 의한 해독 효과를 대조구와 비교하였다. 8주 동안 카드뮴 중독용 실험 식이를 급여한 결과, 카드뮴 중독 현상이 나타났다. 해독기간 중 돼지고기를 급여한 경우 체중 회복이 빠른 경향을 보였으나 유의적 차이는 없었다. 해독에 의해 헤모글로빈과 헤마토크릿은 완전히 정상치와 같은 수준으로 향상되었다. 체중 100g당 간의 무게는 250 ppm 카드뮴 중독 후 해독시 돼지고기를 섭취한 처리구에서 가장 높게 나왔다 카제인을 섭취한 처리군보다 돼지고기를 섭취한 처리군에서 카드뮴의 축적이 더 낮게 나타났으며 특히 신장에서의 카드뮴 축적 농도에 영향을 미치는 인자로서 카드뮴뿐만 아니라 카드뮴과 돼지고기 섭취 여부의 교호작용$(Cd^{***},\;Cd^*\;Pork^{**})$등이 나타났다. 해독시 metallothionein(MT) 합성은 돼지고기에 의해 영향을 받지 않는 것으로 보여졌다.

Keywords

References

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