Harris K B, Cross H R, Pond W G, Mersmann H J
Department of Animal Science, Texas A&M University, College Station 77843-2471.
J Anim Sci. 1993 Apr;71(4):807-10. doi: 10.2527/1993.714807x.
Thirty-six female pigs selected for three generations for high or low serum cholesterol were chosen to evaluate the effects of a high-fat, high-cholesterol diet and a low-fat, low-cholesterol diet provided on an ad libitum basis for 92 d beginning at 12 wk of age on the cholesterol content and percentage of fat in muscle and organ tissues. The pigs were four-way crosses (Chester White x Landrace x Large White x Yorkshire). Samples of cerebrum, heart, ileum, kidney, liver, longissimus muscle, semitendinosus muscle, and subcutaneous fat were collected from each animal for determination of cholesterol concentration. The liver was the only tissue that had a significant difference in cholesterol content and in fat percentage between the genetic groups (high serum cholesterol and low serum cholesterol) and between the two diets (high-fat, high-cholesterol diet and low-fat, low-cholesterol diet). There were no interactions between diet and genetic background on cholesterol accretion or on the percentage of fat in the tissues.
选取经过三代选育的血清胆固醇水平高或低的36头雌性猪，以评估从12周龄开始随意采食92天的高脂、高胆固醇日粮和低脂、低胆固醇日粮对肌肉和器官组织中胆固醇含量及脂肪百分比的影响。这些猪是四元杂交猪（切斯特白猪×长白猪×大白猪×约克夏猪）。从每头动物采集大脑、心脏、回肠、肾脏、肝脏、背最长肌、半腱肌和皮下脂肪样本，用于测定胆固醇浓度。肝脏是唯一在遗传组（高血清胆固醇和低血清胆固醇）之间以及两种日粮（高脂、高胆固醇日粮和低脂、低胆固醇日粮）之间胆固醇含量和脂肪百分比存在显著差异的组织。日粮与遗传背景在胆固醇蓄积或组织脂肪百分比方面没有相互作用。
