| Abstract: |
Summary:- In the current study a total of 477 representative feed samples (157from Bany Qurra factory and 40 from each farm), 160 milk samples, and320 each of urine and faecal samples were collected from four milk producingfarms (Faculty of Agricultural, Bany Mur, EI-Hawatka and Arab El-Awarner)and four meat producing farms (El-Hawatka, Om EI-Qusor, Arab El-Awarnerand Manquabad) at Assiut Governorate for detection and estimation ofaflatoxins. Different feedstuff components (white and yellow corn, cottonseedcake, soybean meal, wheat bran, cassave pellets, rice polish, rice hulls andmixed feed) were collected from feedstuff producing plant at Assiut Gover-norate. Thirty tissues samples (l O each of liver, muscles and kidneys) werecollected from animals slaughtered in Assiut abattoir recieved from meatproducing farms in winter 1988-1989. Feed, milk, urine and faecal sampleswere taken seasonally from march 1988 to march 1990. All samples wereinitially screened by thin layer cbromatogr aphy (TLC). A aflatoxins residueswere estimated by high performance liquid chromatography for milk, urineand faecal samples and by TLC for feedstuffs only.’Out 477 feed samples analyzed, 90 (about 18%) were positive In alevel starting from 0.8 to about 30 ug/Kg feed. Analysis of feed componentsrevealed that, white corn was the component highly contaminated by afla-toxins followed by yellow corn. Analysis of 160 milk samples revealed thatabout 3.75% of samples were positive in a range starting from 0.11 to 0.46ug/L., while analysis of 320 each of urine and faecal samples revealed thatabout 3.7% and 1.56% of Urine and faecal samples were positive respectivelyIn a range level starting from 0.09 up to 0.67 ug MilL. and 0.35 to1.42 ug B/Kg respectively.
|
|
|