Determining the relationship between the concentration of aflatoxin B1 in feed components and aflatoxin M1 in raw milk of industrial dairy farms in Joghtai city (Razavi Khorasan)

Document Type : Original Article

Authors

1 Animal Science Department- Faculty of Veterinary Medicine- Semnan University

2 veterinary department,,semnan university

3 Faculty of Veterinary Medicine- Semnan University

Abstract

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 Aflatoxin B has been considered more than any other mycotoxin in terms of its carcinogenic and severe toxic effects in humans and animals. Considering the importance of the topic, the present study was conducted with the aim of determining the relationship between the concentration of aflatoxin B1 in feed components and aflatoxin M1 in raw milk of industrial dairy farms in Joghtai city.
In this study, in order to investigate aflatoxin B and aflatoxin M and determine the relationship between them, sampling of feed (concentrate, soybean meal, corn silage) and milk was done in 3 seasons: winter, spring and summer. In order to conduct this research, raw milk samples were collected from 4 centers in Joghtai city and transported to the laboratory, and the amount of aflatoxin M was measured according to the instructions of the ELISA kit. Also, three types of feed (concentrate, soybean meal, corn silage) were sampled. The amount of aflatoxin B in the examined samples was measured according to the instructions of the ELISA kit. The obtained data were analyzed using SAS statistical software and GLM procedure in the form of completely random design.In this evaluation, the highest level of aflatoxin contamination in milk between the three seasons was investigated, related to the summer season with an average concentration of 0.039±3.00 ng/liter and the lowest level of contamination was related to the winter season with an average concentration of 0.013±0.003. was 0. Among the three analyzed feed samples, concentrate, soybean meal and corn silage, the highest amount of aflatoxin B1 contamination is related to corn silage in the summer season with an average concentration of 14.66±1.497 μg/kg and the lowest amount in soybean meal in the winter season with The average concentration was 3.00 ± 0.00 µg/kg.Livestock farmers use more corn silage in the summer season than they have for the past year, so the amount of aflatoxin that animals receive from the ration is higher in the summer season.

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Journal of Veterinary Laboratory Research
Volume 16, Issue 1 - Serial Number 25
September 2024
Pages 63-73

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