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首页> 外文期刊>Meat Science >Changes in texture, colour and fatty acid composition of male and female pig shoulder fat due to different dietary fat sources
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Changes in texture, colour and fatty acid composition of male and female pig shoulder fat due to different dietary fat sources

机译：不同饮食脂肪来源引起的雌雄猪肩脂肪的质地，颜色和脂肪酸组成的变化

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摘要

Two experiments with 72 slaughter pigs in each were conducted. Entire males and females were individually fed restricted. Palm kernel-, soybean- and fish-oil were used in varying combinations, giving different dietary fat levels (29-80 g/kg) and iodine values ranging from 50 to 131. Shoulder fat was analysed for fatty acid composition (inner and outer layer), firmness and colour. A clear dose-response relationship was seen between fatty acids in diets and in shoulder fat. Interestingly, the very long chain n-3 fatty acids seemed to be deposited more efficiently when additional fat was included in the diet. Both high and low dietary iodine values changed towards less extreme iodine values in fat. Low-fat diets enhanced de novo synthesis of fatty acids. Males revealed a higher percentage of PUFA and a lower percentage of C18:1 and MUFA. Fat firmness, but not colour, was influenced by sex and dietary fat source.
机译：进行了两个实验，每个实验中有72头屠宰猪。整个雄性和雌性都单独进食受限。棕榈仁油，大豆油和鱼油以不同的组合使用，饮食中的脂肪含量不同（29-80克/千克），碘值介于50至131之间。分析了肩部脂肪的脂肪酸组成（内部和外部）层），硬度和颜色。饮食中和肩部脂肪中的脂肪酸之间存在明显的剂量反应关系。有趣的是，当在饮食中添加额外的脂肪时，长链n-3脂肪酸似乎更有效地沉积。高和低饮食中的碘值都朝着脂肪中较低的极端碘值变化。低脂饮食增强了脂肪酸的从头合成。男性的PUFA百分比较高，而C18：1和MUFA的百分比较低。性别和饮食脂肪来源会影响脂肪的硬度，但不会影响肤色。

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  • 来源
    《Meat Science》 |2012年第3期|p.519-527|共9页
  • 作者

    E. Hallenstvedt; N.P. Kjos; M. Overland; M. Thomassen;

  • 作者单位

    Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 As, Norway,Felleskjepet Forutvikling, Bromstadveien 57, N-7005 Trondheim, Norway;

    Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 As, Norway;

    Aquaculture Protein Centre, Centre of Excellence, Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, PO Box 5003, NO-1432 As, Norway;

    Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 As, Norway;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    pig; fat quality; fatty acids; sex; fat texture; fat colour;

    机译：猪;脂肪质量脂肪酸;性别;脂肪质地;胖颜色;

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