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Response of Japanese Quail to Dietary and Injected Pyrrolizidine (Senecio) Alkaloid

Oregon State University, Corvallis 97331

⁷ To whom reprint requests should be addressed.

Abstract

Japanese quail were fed a diet containing 10% Senecio jacobaea for periods up to 365 days, with no mortality and no change in external appearance. Eggs from quail hens fed Senecio were fertile, and yielded normal chicks. Changes in liver histology as a result of Senecio consumption were noted. The 2-hr bound pyrrole level in livers of quail injected intraperitoneally with 100 mg Senecio alkaloid per kilogram body weight was about 60% lower than in rats receiving the same dosage. The LD₅₀ of Senecio alkaloid injected i.p. was 115 mg/kg in quail. The results indicate that the quail is resistant to dietary Senecio jacobaea, but is susceptible to acute effects of injected alkaloid.

² Department of Animal Science

³ Department of Poultry Science.

⁴ School of Veterinary Medicine.

⁵ Present address: College of Veterinary Medicine,Colorado State University, Fort Collins, 80521.

⁶ Present address: Department of Dairy Science, Michigan State University, East Lansing, 48824.