中文摘要：本研究用蒙特卡洛仿真模型，预设三种情形：产奶量、受AfB1污染的配合饲料（CF）及CF成分，调查牛奶中AfM1的存在情况。结果显示，在由2个哺乳期和3个饲料成份组合的6种情形下，全部的5种传输方程中，一周内牛奶中的AfM1浓度高于欧盟限定的迭代次数不足1%。而当玉米受到不同浓度的AfB1污染时，几周内牛奶中的AFM1浓度大幅上升，超过了欧盟限定的迭代次数高达28.5%。此外，因产奶量增加导致的明显的稀释效应对AfM1的超限影响最小。基于牛奶中潜在的AfM1污染，应当慎重考虑奶牛的饲喂方式，包括CF成份及粗饲料饲喂。
外文摘要：This study investigated the presence of aflatoxin M1 (AfM1) in dairy cows' milk, given predefined scenarios for milk production, compound feed (CF) contamination with aflatoxin B1 (AfB1), and inclusion rates of ingredients, using Monte Carlo simulation modelling. The model simulated a typical dairy farm in the Netherlands. Six different scenarios were considered, based on two lactation and three CF composition scenarios. AfB1 contamination of the CF was based on results from the Dutch national monitoring programme for AfB1 in feed materials from 2000 until 2010. Monitoring data from feed materials used in CF production for dairy cattle in the Netherlands were used. Additionally, AfB1 contamination data from an incident in maize in 2013 were used. In each scenario, five different transfer equations of AfB1 from feed to AfM1 in the milk were used, and 1000 iterations were run for each scenario. The results showed that under these six scenarios, the weekly farm concentration of AfM1 in milk was above the EC threshold in less than 1% of the iterations, with all five transfer equations considered. However, this increased substantially in weeks when concentrations from the contaminated maize batch were included, and up to 28.5% of the iterations exceeded the EC threshold. It was also observed that an increase in the milk production had a minimal effect on the exceedance of the AfM1 threshold due to an apparent dilution effect. Feeding regimes, including the composition of CF and feeding roughages of dairy cows, should be carefully considered based on the potential AfM1 contamination of the farm's milk.
外文关键词：transfer； aflatoxins； dairy chain； maize； contamination
作者：van der Fels-Klerx, HJ； Camenzuli, L
作者单位：RIKILT Wageningen Univ & Res
期刊名称：TOXINS
期刊影响因子：3.571
出版年份：2016
出版刊次：10
点击下载：用蒙特卡洛仿真模型研究产奶量、饲料成分及饲料受黄曲霉毒素B1污染对牛奶中黄曲霉毒素M1浓度的影响