INFLUENCE OF OCHRATOXIN A AND ZEARALENONE ON SOME MINERALS, LIPID PROFILES AND TISSUE RESIDUES IN LAYING HENS

Document Type : Original Article

Author

Biochemistry Department, Animal Health Research Institute, Dokki

Abstract

A problem of anorexia, loss of weight, decrease in egg production, coloacal haemorrhage with a high mortality rate (up to 30%) in an intensive poultry farm for laying hens was recorded. Serum analysis of 50 severely affected birds revealed significant changes in calcium and phosphorus levels. Lipid profiles were also changed compared to their levels in control healthy hens. Examination of kidney, liver and parts of the muscles for detection of ochratoxin and zearalenone residues showed presence of 43, 24 and 19 μg ochratoxin / kg tissue and 28, 12 and 10 μg zearalenone / kg tissue, respectively. Analysis of diet samples taken from the offered and stock ration indicated their contamination with ochratoxin and zearalenone (20 and 64 ppm, respectively).

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