Incidence of Aspergillus Section Flavi and concentration of aflatoxin in feed concentrates for Cattle in Jos, Nigeria
Journal Title: Journal of Veterinary Advances - Year 2012, Vol 2, Issue 1
Abstract
Samples of two types of cattle feed concentrates compounded at the feed mill section of the National Veterinary Research Institute (NVRI), Vom, Nigeria were evaluated for incidence of toxigenic Aspergillus section Flavi. Aflatoxins in the feed were quantified by Thin-layer chromatography with fluorescent detection in order to determine the risk of aflatoxicosis to the cattle. Isolates of Aspergillus section Flavi were recovered from all analyzed feed samples at varying levels. A. flavus was predominant (>70%) in the feed samples and occurred as the only Aspergillus section Flavi member in the dairy feed type. The incidence of atoxigenic strains was significantly (P<0.05) higher than that of toxigenic strains in both feed types and exceeded 75% in each case. Aflatoxin B1 (AFB1), B2 and G1 were detected in the samples at varying concentrations. Aflatoxins contaminated more samples and in higher concentrations in the dry season than in wet season. The mean concentration of aflatoxins was significantly (P<0.05) higher in dairy concentrates than maintenance concentrates. About 92% of the concentrate feed samples for dairy cattle had AFB1 concentrations exceeding the stipulated 5 µg/kg maximum limit set by the European Union (EU) for dairy cattle. AFB1 concentrations in all samples of the maintenance feed concentrate were within the EU maximum acceptable limits of 20 µg/kg. This study has shown that the risk of aflatoxicosis is high in dairy cattle due to the high levels of AFB1 in the feed concentrates. This may affect the milk products obtained from the cattle due to biotransformation of AFB1 into AFM1.
Authors and Affiliations
I. E. Udom , C. N. Ezekiel , S. O. Fapohunda , Z. S. C. Okoye , C. A. Kalu
Keywords
Related Articles
- EP ID EP146506
- DOI -
- Views 87
- Downloads 0
Effect of Nitrate on the Body Weight, Food and Water Consumption and Thyroid Hormone in Hybrid Female Rabbits
Nitrate is a wide extend pollutant of ground and surface water. The objective of this study was to determine the effects of nitrate on the body weight, food and water consumption as well as thyroid hormone in hybrid fema...
The in Vivo Effect of Oselatmivir against Highly Pathogenic Avian Influenza Virus (H5N1) Isolated from Egypt
Highly pathogenic avian influenza is still a major problem in poultry sector and house hold chickens in Egypt. This study was directed to detect and characterize the AIVs circulating among chickens flocks in our region (...
Water Level Fluctuations and Its Implications on Fish Breeding Nests in Lake Mutirikwi, Masvingo, Zimbabwe
The study aimed at assessing the relationship between water level fluctuation and the number of fish breeding nests which were exposed along selected bays of Lake Mutirikwi in southeastern Zimbabwe. Data was collected be...
A Study of Comparative Efficacy of Local and Foreign Antibiotic Discs used in Southeast Nigeria
The aim of this study is to evaluate the most effective antibiotic disc on three chosen bacteria organisms. There are Staphylococcus aureus, Salmonella gallinarium and Esherichia coli. Three antibiotic discs made of one...
Effect of Acute and Prolonged Administration of Ethyl Acetate Fraction of Psidium Guajava Aqueous Leaf Extract on Tissue Histology and Some Haematological Values in Chickens
The effect of oral administration of ethyl acetate fraction of Psidium guajava aqueous leaf extract on tissue histology and red blood cell values was investigated in chickens. The study involved use of male chicks of ISA...