Cyanide toxicity and interference with diet selection in quail (Coturnix coturnix)

Area of Science:

• Toxicology
• Animal Nutrition
• Environmental Health

Background:

• Cyanide is an environmental toxin requiring detoxification via sulfur, incurring a nutritional cost.
• Nutrient-toxicant interactions can influence diet selection and food intake in mammals.
• The impact of cyanide on avian diet selection and toxicological effects requires investigation.

Purpose of the Study:

• To describe the toxic effects of cyanide in quails (Coturnix coturnix).
• To determine if cyanide exposure interferes with diet selection in quails.
• To assess the interaction between cyanide toxicity and sulfur ingestion.

Main Methods:

• A toxicological study involving 27 quails receiving 0, 1.0, or 3.0 mg KCN/kg/day for 7 days.
• Histopathological examination of liver, thyroid, and brain tissues.
• A diet selection trial with 20 quails offered a standard ration and one supplemented with sodium sulfate.

Main Results:

• Cyanide administration caused clinical signs of poisoning and death in one quail.
• Histological analysis revealed hepatic periportal vacuolation, thyroid changes, and mesencephalon spongiosis in cyanide-treated quails.
• No significant differences in food consumption or ration preference were observed during the diet selection trial.

Conclusions:

• Cyanide exposure induces damage to the liver and central nervous system in quails.
• Quail diet selection and sulfur ingestion were not significantly affected by cyanide exposure.
• The study highlights specific toxicological impacts of cyanide on quails without altering their dietary choices.