Mörlein Johanna, Gertheiss Jan, Wicke Michael, Mörlein Daniel
Department of Animal Sciences, Meat Science Group, University of Göttingen, D-37075 Göttingen, Germany.
Department of Animal Sciences, Biometrics & Bioinformatics Group, University of Göttingen, D-37075 Göttingen, Germany.
Meat Sci. 2014 Oct;98(2):255-62. doi: 10.1016/j.meatsci.2014.05.037. Epub 2014 Jun 7.
Due to animal welfare concerns the production of entire male pigs is one viable alternative to surgical castration. Elevated levels of boar taint may, however, impair consumer acceptance. Due to the lack of technical methods, control of boar taint is currently done using sensory quality control. While the need for control measures with respect to boar taint has been clearly stated in EU legislation, no specific requirements for selecting assessors have yet been documented. This study proposes tests for the psychophysical evaluation of olfactory acuity to key volatiles contributing to boar taint. Odor detection thresholds for androstenone and skatole are assessed as well as the subject's ability to identify odorants at various levels through easy-to-use paper smell strips. Subsequently, fat samples are rated by the assessors, and the accuracy of boar taint evaluation is studied. Considerable variation of olfactory performance is observed demonstrating the need for objective criteria to select assessors.
出于动物福利考虑，养殖完整雄性猪是手术阉割的一种可行替代方法。然而，公猪异味水平升高可能会影响消费者的接受度。由于缺乏技术方法，目前对公猪异味的控制是通过感官质量控制来进行的。虽然欧盟立法已明确规定了针对公猪异味的控制措施的必要性，但尚未记录关于选择评估人员的具体要求。本研究提出了针对对公猪异味关键挥发性成分嗅觉敏锐度进行心理物理学评估的测试。评估了雄烯酮和粪臭素的气味检测阈值，以及受试者通过易于使用的纸质气味条识别不同浓度气味物质的能力。随后，评估人员对脂肪样本进行评分，并研究公猪异味评估的准确性。观察到嗅觉表现存在相当大的差异，这表明需要客观标准来选择评估人员。
