CAJ | 학술논문

为探讨米糠毛油与大豆毛油2种植物油对肉猪生产性能、脂类代谢及相关基因表达的影响，本试验选取48头胎次相近、平均体质量为(37.31±2.81) kg 80日龄的肉猪，随机分成2组，即米糠毛油组和大豆毛油组，测定了2组肉猪生产性能、血清生理生化指标、血清脂肪酶活性及肝脏脂肪酸合成酶和载脂蛋白质的mRNA表达量。结果显示：在肉猪的生长期、育肥期及全期，米糠毛油组肉猪的日增质量、日采食量均低于大豆毛油组，料质量比与大豆毛油组，差异均不显著。与大豆毛油相比，米糠毛油对肉猪血清的总胆固醇、高密度脂蛋白胆固醇、低密度脂蛋白质胆固醇含量影响不显著；米糠毛油组肉猪的血清甘油三酯比大豆毛油组显著下降41.99％；米糠毛油组肉猪血清脂蛋白质脂酶、肝脂酶、总脂酶的活性均极显著高于大豆毛油组。米糠毛油组肉猪的脂肪酸合成酶和载脂蛋白质的mRNA表达量均极显著低于大豆毛油组。表明米糠毛油和大豆毛油2种植物油对肉猪的生产性能影响差异不显著；米糠毛油在肉猪体内更易于消化吸收。
위탐토미강모유여대두모유2충식물유대육저생산성능、지류대사급상관기인표체적영향，본시험선취48두태차상근、평균체질량위(37.31±2.81) kg 80일령적육저，수궤분성2조，즉미강모유조화대두모유조，측정료2조육저생산성능、혈청생리생화지표、혈청지방매활성급간장지방산합성매화재지단백질적mRNA표체량。결과현시：재육저적생장기、육비기급전기，미강모유조육저적일증질량、일채식량균저우대두모유조，료질량비여대두모유조，차이균불현저。여대두모유상비，미강모유대육저혈청적총담고순、고밀도지단백담고순、저밀도지단백질담고순함량영향불현저；미강모유조육저적혈청감유삼지비대두모유조현저하강41.99％；미강모유조육저혈청지단백질지매、간지매、총지매적활성균겁현저고우대두모유조。미강모유조육저적지방산합성매화재지단백질적mRNA표체량균겁현저저우대두모유조。표명미강모유화대두모유2충식물유대육저적생산성능영향차이불현저；미강모유재육저체내경역우소화흡수。
Fourty eight 80-day-old pigs with close parity and average body mass of (37. 31±2. 81) kg were randomly allocated into two groups, rice bran oil group and soybean oil group, to measure the production performance,serum physio-logical and biochemical indexes, serum lipase activity and the mRNA expression levels of fatty acid synthetase and apoli-poprotein. During the whole growing period, daily body mass gain and daily feed intake of the pigs in rice bran oil group were a little lower than those in soybean oil group, while the feed gain ratio was slightly higher. The contents of total cho-lesterol, high density lipoprotein cholesterol as well as low density lipoprotein cholesterol were close in two groups. The ser-um triglyceride content in the pigs in rice bran oil group was 41. 99 percent lower than that in soybean oil group, however, the activities of serum lipoprotein lipase, hepatic lipase, and total lipase were much higher. The mRNA expression levels of fatty acid synthetase and apolipoprotein apoB in rice bran oil group were significantly lower than those in soybean oil group. The results indicated that the two kinds of oil treatments did not exert differential effect on pig production performance, and rice bran oil was easier to be digested and absorbed.