Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Effect of the Feeding Belly Fat on Plasma Lipids Levels in Rats

삼겹살기름의 섭취가 흰쥐의 혈액지질 수준에 미치는 영향

  • 박병성 (강원대학교 동물생명과학전공)
  • Published : 2004.06.01
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Abstract

This study investigated the effect of belly fat on the plasma lipid concentrations in rats. The results were obtained from the rats that had been fed the experimental purified diets containing 5％ corn oil (C) as the control, 5％ commercial lard (Tl), 5％ belly fat (T2), 10％ belly fat(T3), and those given diet(T4) by feeding either C or T3 alternately every 3 days for 30 days. The food intake and food efficiency were not show any significant difference among the treatments. The body weight gain tended to significantly increased when the feeding of added-belly fat in diets (p＜0.05). The plasma triacylglycerides of T3 was higher than the other treatments, and significantly elevated as the number of feeding days of the diets with the belly fat passed when compared to diet C (p＜0.05). The plasma total cholesterol of T3 showed the highest levels in the treatment groups, and was high in the order of T1, T2, T4, and there was a significant difference between the rats given the diet with belly fat and C (p＜0.05). The plasma HDL-C of T2 and T3 was showed the lowest levels in the treatment groups. The plasma HDL-C of T1, T2, T3 and T4 groups were significantly decreased as the number of feeding days of the diets with the belly fat increased when compared to diet C (p＜0.05). The plasma LDL-C and Al of T3 showed the highest levels in the treatment groups, and the levels were in order of T1, T2, T4. There was a significant difference between the groups of rats given the belly fat and C (p＜0.05). The bleeding times significantly decreased as the number of feeding days of the belly fat diets increased, and T3 showed the lowest levels, there was a significant difference among the treatment groups (p＜0.05). The whole blood clotting times of T3 showed the lowest values, and significantly decreased according to the number of days of the rats were fed the belly fat diet (p＜0.05). These results showed that frequent consumption and high intake of pork belly can elevate the plasma triacylglyceride and cholesterol levels, and also accelerate red thrombus formation because belly fat contains high levels of saturated fatty acids and cholesterol.

본 실험은 삼겹살 기름의 섭취가 흰쥐의 혈액 지질함량 변화에 미치는 영향을 알아보기 위해서 수행하였다. 흰쥐식이에 옥수수기름을 5％ 첨가하여 급여한 처리구(대조구), 상업용 돼지기름으로서 정제된 라드를 5％ 혼합 급여한 처리구(T1), 삼겹살 기름을 5％ 첨가 급여한 처리구(T2), 삼겹살 기름을 10％ 첨가 급여한 처리구(T3) 및 옥수수기름 5％ 첨가 급여구(대조구)와 삼겹살 기름 10％ 첨가 급여구(T3)를 각각 3일씩 교체 급여한 처리구(T4)등 5개 처리구로 나누어서 각각 6반복씩 완전임의 배치한 후 30일간 사육한 결과는 다음과 같다. 식이섭취량 및 식이효율은 처리구간에 일정 한 차이가 없었으며, 증체량에 있어서는 삼겹살 기름을 첨가 급여하였을 때 유의적으로 높아지는 경향을 보였다.(p＜0.05). 혈액 중성지방은 T3가 나머지 네 급여구에 비해서 높았으며 대조구와 비교할 때 삼겹살 기름을 첨가 급여할수록 모든 처리구가 유의적으로 증가하였다(p＜0.05). 혈액 총 콜레스테롤은 T3가 가장 높았고 T1, T2, T4순으로 높게 나타났으며 대조구와 삼겹살기름 첨가구 사이에는 통계적 유의성이 있었다. (p＜0.05). 혈액 HDLㆍC 함량은 T2와 T3가 가장 낮은 경향을 보여줬으나 T1, T2, T3, T4 사이에 유의적인 차이는 나타나지 않았으며 대조구와 비교할 때 삼겹살 기름을 첨가 급여할수록 모든 처리구가 유의적으로 낮아지는 경향을 보여줬다(p＜0.05). 혈액 LDLㆍC와 Al는 T3가 가장 높았고, T1, T2, T4 순으로 높게 나타났으며 대조구와 삼겹살 기름 첨가구 사이에 통계적으로 유의한 차이가 있었다(p＜0.05). 출혈시간은 삼겹살 기름을 첨가 급여하였을 때 유의적으로 단축되는 경향을 나타냈으며 T3가 가장 짧았고 처리구간 유의적인 차이가 있었다(p＜0.05). 전혈 응고시간은 T3가 가장 단축되었고 삼겹살 기름을 첨가급여 할수록 단축되는 경향이 있었으며 처리구간 통계적인 유의성이 있었다.(p＜0.05). 본 연구의 결과는 돼지고기 삼겹살의 잦은 섭취 또는 과잉섭취가 혈액 내 중성지방과 유해 콜레스테롤 함량을 높여줌으로서 혈전 형성을 가속화 할 수 있음을 보여주며 이는 삼겹살 기름에 함유되어 있는 포화지방산과 콜레스테롤 함량이 높은 데 기인함을 시사해 준다.

Keywords

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