Woźniak Barbara, Cybulski Piotr, Jabłoński Artur, Witek Sebastian, Matraszek-Żuchowska Iwona
Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Puławy, Poland.
Goodvalley Poland, 77-320 Przechlewo, Poland.
J Vet Res. 2020 Dec 10;64(4):557-565. doi: 10.2478/jvetres-2020-0080. eCollection 2020 Dec.
An effective way of preventing undesirable boar taint in pork meat caused by the presence of androstenone, skatole and indole is surgical castration of piglets. This, however, arouses growing social opposition. An alternative method of inhibiting the development of unpleasant odour is immune castration. The aim of the study was to compare the effectiveness of both methods of castration for the elimination of the compounds responsible and to assess the suitability of oral fluid for pre-slaughter predictive testing for boar taint.
The research material was pooled oral fluid and fat samples taken from gilts and surgically and immunologically castrated piglets. The samples were tested with a liquid chromatography- tandem mass spectrometry method developed in this research.
The compounds giving rise to boar taint were found only sporadically above the accepted limits; only one sample of oral fluid contained skatole at a concentration above 200 μg L and one contained indole more concentrated than 100 μg L. Indole above the limit value was also detected in one fat sample. In none of the tested samples was androstenone found.
The results indicate the similar effectiveness of both methods of piglet castration on the reduction of compounds generating boar taint. The usefulness of testing oral fluid for the ante-mortem prediction of boar taint has not been fully confirmed and further investigation is needed.
防止猪肉中因雄烯酮、粪臭素和吲哚导致不良公猪异味的一种有效方法是对仔猪进行手术去势。然而，这引发了越来越多的社会反对。抑制不愉快气味产生的另一种方法是免疫去势。本研究的目的是比较两种去势方法消除相关化合物的效果，并评估口腔液用于宰前公猪异味预测检测的适用性。
研究材料为采集自后备母猪以及接受手术去势和免疫去势的仔猪的混合口腔液和脂肪样本。采用本研究开发的液相色谱 - 串联质谱法对样本进行检测。
导致公猪异味的化合物仅偶尔被发现超过可接受限度；仅一份口腔液样本中粪臭素浓度高于200μg/L，一份样本中吲哚浓度高于100μg/L。在一份脂肪样本中也检测到超过限值的吲哚。在所检测的样本中均未发现雄烯酮。
结果表明两种仔猪去势方法在减少产生公猪异味的化合物方面效果相似。口腔液检测用于公猪异味宰前预测的实用性尚未得到充分证实，需要进一步研究。
