中文摘要：本研究旨在确定在农场环境中储存的多种奶牛饲料受黄曲霉毒素B1（AFB1）污染的情况。研究表明，AFB1水平的升高与饲料种类和农场条件有关。
外文摘要：The objective of this study was to determine the contamination of aflatoxin B1 (AF-B1) when keeping various dairy feeds in a farm environment. The study was carried out from March to May 2011 and involved 63 small holder dairy farms belonging to a single dairy cooperative in Chiang Mai province, Thailand. All feed samples used for milking cows including 4 commercial concentrates (CC1 to CC4), by-products from local corn processing factories fermented in plastic bags (SIL), and corn and cob meal or corn dust (CCD). Feed samples were collected 2 times at before and after storage. Farmers were requested to store CC1 to CC4 and CCD for a month and SIL for a week using their routine on-farm storage arrangements. All samples were measured for their AF-B1 concentrations by ELISA. Results showed that AF-B1 concentrations of CC1 to CC4, SIL and CCD before storage were 5.1, 4.1, 4.0, 4.2, 5.5 and 5.5 μg/kg, respectively, and after storage the concentration of AF-B1 were 9.7, 6.5, 9.8, 12.3, 11.4 and 20.0 μg/kg, respectively. CCD at after storage was the only feed that had mean level more than 20 μg/kg. Concentrations of AF- B1 at before storage in all feeds were significantly lower than after storage (P<0.01), and the increased ratio of AF-B1 levels was approximately 2 to 3 times. The study concluded that increased AF-B1 levels are related to feed types and farm conditions.
外文关键词：Dairy feed；Aflatoxin B1；Commercial concentrate；Storage
作者：Mongkon, W；Sugita-Konishi, Y；Chaisri, W；Suriyasathaporn, W
作者单位： Chiang Mai Univ
期刊名称：BIOCONTROL SCIENCE
期刊影响因子：0.677
出版年份：2017
出版刊次：1
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