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    Maize storage practices and their influence on aflatoxin contamination in stored grains in four agroecological zones in Benin, West Africa

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    Date
    2000
    Author
    Hell, K.
    Cardwell, K.
    Sétamou, M.
    Poehling, H.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Aflatoxin level in 300 farmers' stores in four agro-ecological zones in Benin, a West African coastal country, were determined over a period of 2 years. At sampling a questionnaire was used to evaluate maize storage practices. Farmers were asked what storage structure they used, their storage form, storage period, pest problems in storage and what was done against them. Beninese farmers often changed their storage structures during the storage period, transfering the maize from a drying or temporary store to a more durable one. Most of the farmers complained about insects damaging stored maize. Often, storage or cotton insecticides were utilized against these pests. Regression analysis identified those factors that were associated with increased or reduced aflatoxin.Maize samples in the southern Guinea and Sudan savannas were associated with higher aflatoxin levels and the forest/savanna mosaic was related to lower toxin levels. Factors associated with higher aflatoxin were: storage for 3-5 months, insect damage and use of Khaya senegalensis-bark or other local plants as storage protectants. Depending on the agroecological zone, storage structures that had a higher risk of aflatoxin development were the "Ago", the "Secco", the "Zingo" or storing under or on top of the roof of the house. Lower aflatoxin levels were related to the use of storage or cotton insecticides, mechanical means or smoke to protect against pests or cleaning of stores before loading them with the new harvest. Fewer aflatoxins were found when maize was stored in the "Ago" made from bamboo or when bags were used as secondary storage containers.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5306
    IITA Subjects
    Smallholder Farmers; Aflatoxin; Handling, Transport, Storage And Protection Of Agricultural Products; Pests Of Plants
    Agrovoc Terms
    Aflatoxins; Farmers; Storage Structures; Pests
    Regions
    Africa; Acp; West Africa; Europe
    Countries
    Benin; Germany
    Collections
    • Journal and Journal Articles4835
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