...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the Science of Food and Agriculture >Quantification of d and ltocopherol isomers in combination with pattern recognition model as a tool for differentiating drycured shoulders of Iberian pigs raised on different feeding systems
【24h】

Quantification of d and ltocopherol isomers in combination with pattern recognition model as a tool for differentiating drycured shoulders of Iberian pigs raised on different feeding systems

机译：d和生育酚异构体的定量结合模式识别模型，作为区分在不同饲喂系统下饲养的伊比利亚猪干枯肩膀的工具

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

BACKGROUND: Quantification of d and ltocopherol in drycured shoulders of Iberian pigs was evaluated as a tool for differentiating feeding backgrounds or regimens. Samples (n = 115) were obtained over two different seasons from the four categories of pigs described in the Industry Quality Policy, i.e. pigs fed in freerange conditions (FREERANGE), pigs fed in freerange conditions and provided feed supplements (FREEFEED), pigs fed outdoors with feed and with access to grass (FEEDOUT) and pigs fed in intensive conditions with feed (FEED). Linear discriminant functions were calculated and validated. RESULTS: The validation results showed that 20% of the muscle samples were not correctly classified into the four feeding categories, giving an 80% success rate. The FEED group had the lowest proportion of errors, with 100% of samples correctly classified. For the FREERANGE group, 87% of samples were assigned to the correct feeding system by crossvalidation; however, 13% were considered as FREEFEED. A higher rate of correct classification can be obtained when using three categories or by calculating the weight gain in freerange conditions using regression equations. CONCLUSION: Taking into account the high variability of the samples and the high success in classification, these results are of interest and may be applied in practical situations. pb 2014 Society of Chemical Industry
机译：背景：伊比利亚猪干腌肩膀中的d和生育酚的定量被评估为区分饲喂背景或方案的工具。在两个不同的季节中，从“行业质量政策”中描述的四种猪中获得了样本（n = 115），即在自由放养条件下饲喂的猪（FREERANGE），在自由放养条件下饲喂的猪以及提供饲料补充剂（FREEFEED），在户外使用饲料，并可以使用草（FEEDOUT）和在密集条件下用饲料（FEED）喂养的猪。计算并验证了线性判别函数。结果：验证结果表明，有20％的肌肉样本未正确分类为四个喂养类别，成功率为80％。 FEED组的错误比例最低，正确分类的样本为100％。对于FREERANGE组，通过交叉验证将87％的样品分配到正确的饲喂系统;但是，有13％被认为是自由进给的。当使用三个类别或通过使用回归方程计算自由放养条件下的体重增加时，可以获得较高的正确分类率。结论：考虑到样品的高变异性和分类的高成功性，这些结果是令人感兴趣的，并且可以在实际情况中应用。 pb 2014化学工业协会

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号