Haselmeyer Alexander, Zentek Jürgen, Chizzola Remigius
Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210, Vienna, Austria.
J Sci Food Agric. 2015 Feb;95(3):504-8. doi: 10.1002/jsfa.6758. Epub 2014 Jun 26.
Aromatic herbs as feed additives in animal production are encountering growing interest, but data on the fate of the aromatic compounds from the plant in the animal body are very scarce. In the present study, thyme (Thymus vulgaris) herb consisting of leaves and flowers without stems was used as an ingredient in the diet for broilers. The herb was fed for 35 days to five groups of broilers (0, 0.1, 0.2, 0.3, and 1% w/w in the diet). Animal performance and the concentrations of the main essential oil component from thyme, thymol, were measured in gut contents, plasma and liver and muscle tissues using solid phase microextraction and gas chromatography/mass spectrometry.
There were no differences between the groups in feed intake, daily weight gain, feed conversion and slaughter weight. Thymol was detected in gut contents, plasma and liver and muscle tissues. Increased intestinal thymol concentrations were found in the group with 1% thyme compared with the other groups (P < 0.05). In liver and muscle tissues the thymol levels were close to the limit of quantification.
The data do not indicate a positive effect of thyme on animal performance. With high dietary levels of thyme herb, thymol concentrations increased in gut contents and plasma but were very low in edible tissues such as liver and flesh. © 2014 Society of Chemical Industry.
作为动物生产中饲料添加剂的芳香草药正受到越来越多的关注，但关于植物中的芳香化合物在动物体内的代谢情况的数据却非常稀少。在本研究中，将由无茎的叶子和花朵组成的百里香（百里香属）草药用作肉鸡日粮的一种成分。将该草药以五组不同添加量（日粮中分别为0、0.1、0.2、0.3和1%重量/重量）饲喂肉鸡35天。使用固相微萃取和气相色谱/质谱法测定动物生产性能以及肠道内容物、血浆、肝脏和肌肉组织中百里香主要精油成分百里香酚的浓度。
各实验组在采食量、日增重、饲料转化率和屠宰体重方面没有差异。在肠道内容物、血浆、肝脏和肌肉组织中均检测到了百里香酚。与其他组相比，添加1%百里香的组肠道中百里香酚浓度升高（P < 0.05）。在肝脏和肌肉组织中，百里香酚水平接近定量限。
数据未表明百里香对动物生产性能有积极影响。日粮中百里香草添加量较高时，肠道内容物和血浆中百里香酚浓度升高，但在肝脏和肌肉等可食用组织中含量很低。© 2014化学工业协会。
