Occurrence and levels of aflatoxin contamination in poultry feed ingredients and layer mash in farms and feed mills in Ghana
2024
Adjorlolo, Leonard | Appiah-opong, Regina | Obese, Frederick
The study assessed the incidence and contamination levels of total aflatoxins (TAF) and aflatoxin B1 (AFB1) in feed ingredients and compound layer mash from six regions in Ghana. Thirty-five facilities comprising commercial poultry farms and feed mills were used in the study. There was 100% incidence of TAF and AFB1 in the samples of layer mash and feed ingredients (maize, soybean meal and wheat bran). The TAF of layer mash, maize and soybean meal (55.2, 54.0 and 47.6 µgkg-1, respectively) were significantly higher (P < 0.05) than TAF of wheat bran (28.6 µgkg-1). Most of the layer mash, soybean meal and wheat bran samples had TAF concentrations exceeding the US Food and Drug Administration (USFDA) maximum limit of 20 µgkg-1. Mean TAF concentrations in layer mash and maize samples were strongly and positively correlated (r = 0.50; P < 0.018). Layer mash, maize and soybean meal had significantly higher (P< 0.05) AFB1 concentrations (33.0, 35.1, 26.5 µgkg-1, respectively) when compared to wheat bran (13.8 µgkg-1). Most layer mash and maize samples exceeded the European Commission’s maximum limits of 20 and 50 µgkg-1 respectively for AFB1. Mean AFB1 concentrations in layer mash and maize samples were strongly and positively correlated (r = 0.54; P = 0.01). High aflatoxins contamination of poultry feed is a persistent problem in Ghana. The use of toxin-binders, education of poultry farmers and feed millers on the implication of aflatoxins contamination in poultry feeds and the enforcement of regulation by Ghana’s food and drugs authority is recommended.
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