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首页> 外文期刊>African Journal of Biotechnology >A survey of the aflatoxin level and molecular identification of fungal contaminants in poultry feed mills from different geopolitical zones of Nigeria
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A survey of the aflatoxin level and molecular identification of fungal contaminants in poultry feed mills from different geopolitical zones of Nigeria

机译：尼日利亚不同地缘政治区的家禽饲料厂对真菌污染物的黄曲霉毒素水平及分子鉴定调查

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Aflatoxin contamination of poultry feeds in Nigeria is a common problem in most feed mills. A survey on the distribution of aflatoxin in feed mills from different parts of Nigeria was carried out. The aflatoxin concentration in most feed mills from the North-western part of Nigeria was low compared to the concentration in the feed mills from the South-eastern part. The total aflatoxin level in three feed mills (B, C and D) out of the four feed mills sampled in North-West ranged from 8.4 ± 2.7-13 ± 4.2 μg/kg. However, feed mill A, had higher concentration of aflatoxin 120 ± 38 μg/kg compared to the others. Three of the North-west feed mills with low aflatoxin concentration were below the 20 μg/kg recommended by United States Food and Drug Administration (USFDA) but the concentrations were higher than the 10 μg/kg recommended by the European commission (EU).? The total aflatoxin in the three feed mills sampled from the South-eastern part of Nigeria ranged from 30 ± 9.6 μg/kg in feed mill G to 34 ± 11 μg/kg in feed mill E. The results from the South-eastern part are comparable with the data from the South-western part of the country. AFG2 was very low in the feed mills sampled in the studied geopolitical regions while AFB1 appeared to be relatively high in all the feed mills in these regions. Screening of the contaminated feeds for aflatoxigenic fungi showed that Aspergillus species were the most common fungal contaminants, with Aspergillus amstelodami and Aspergillus niger being the most isolated fungi. The study has provided a comparative data on aflatoxin distribution in poultry feeds across some geopolitical zones in Nigeria. The obtained data could be useful in aflatoxin mapping in the studied geopolitical zones. Major fungal contaminants of the feed samples from all the geopolitical zones were also identified in this study.
机译：尼日利亚家禽饲料的黄曲霉毒素是大多数饲料厂的常见问题。对尼日利亚不同地区的饲料厂中黄曲霉毒素分布的调查进行了调查。与尼日利亚北部南部的大多数饲料厂中的黄曲霉毒素浓度与来自东南部的饲料厂的浓度相比，较低。三种饲料厂（B，C和D）中的总黄曲霉毒素水平从西北部采样的四个饲料厂中排出的，范围为8.4±2.7-13±4.2μg/ kg。然而，与其他相比，饲料磨机A具有更高浓度的黄曲霉毒素120±38μg/ kg。具有低黄曲霉毒素浓度的西北部饲料厂低于美国食品和药物管理局（USFDA）的20μg/ kg，但浓度高于欧洲委员会（欧盟）推荐的10μg/ kg。 ？从尼日利亚东南部的三个饲料厂中的总黄曲霉毒素在饲料轧机E中的30±9.6μg/ kg范围内，进给磨机E中的34±11μg/ kg。来自东南部的结果是与来自国家南部的数据相比。在研究的地缘政治地区采样的饲料厂中的AFG2非常低，而AFB1在这些区域的所有饲料厂似乎相对较高。筛选污染的黄曲霉毒性真菌的污染饲料表明，曲霉属植物是最常见的真菌污染物，曲霉属amstelodami和曲霉是最孤立的真菌。该研究提供了对尼日利亚一些地缘政治区的家禽饲料中黄曲霉毒素分布的比较数据。所获得的数据可用于学习地缘政治区的黄曲霉毒素映射。本研究还确定了所有地缘政治地区的进料样品的主要真菌污染物。

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