Clinicomorphological studies in chicks fed ochratoxin A while simultaneously developing coccidiosis.

Area of Science:

• Poultry Science
• Toxicology
• Veterinary Pathology

Background:

• Ochratoxin (OTA) is a mycotoxin that can contaminate animal feed.
• Coccidiosis, caused by Eimeria species, is a significant parasitic disease in poultry.
• The combined effects of OTA and coccidiosis on chick health are not fully understood.

Purpose of the Study:

• To investigate the impact of OTA-contaminated diets on the progression of coccidiosis in broiler chicks.
• To evaluate the physiological and pathological changes induced by OTA, coccidiosis, and their co-exposure.

Main Methods:

• Chicks were fed either a control diet or an OTA-contaminated diet.
• Experimental groups were challenged with Eimeria tenella to induce coccidiosis.
• Serum biochemical parameters, organ weights, body weight, and histopathological changes were assessed.

Main Results:

• OTA exposure accelerated coccidiosis progression and increased mortality.
• Combined OTA and Eimeria tenella infection resulted in more severe clinical signs, organ damage (kidneys, liver), and reduced body weight.
• Serum analysis revealed decreased total protein (OTA-treated), increased glucose, and elevated uric acid retention in exposed chicks.

Conclusions:

• OTA exacerbates coccidiosis in chicks, leading to amplified pathological and physiological disturbances.
• Co-infection with Eimeria tenella and OTA exposure poses a significant threat to poultry health, impacting growth and organ function.
• Understanding these interactions is crucial for managing mycotoxin contamination and parasitic diseases in poultry farming.