What is the approximate measured mouse subcutaneous LD50 range for Naja nivea venom?
Answer
0.4 mg/kg to 0.72 mg/kg
Toxicity is often quantified using the LD50 measure, representing the lethal dose for 50 percent of a test population, typically measured in milligrams of venom per kilogram of body weight when administered subcutaneously (under the skin) in mice. For *Naja nivea* venom, this measurement falls within a specific, narrow range, documented between $0.4 ext{ mg/kg}$ and $0.72 ext{ mg/kg}$. This relatively low value confirms the snake's reputation as highly dangerous, as a small amount of venom relative to body mass is required to elicit a lethal response, positioning it among the most potent African elapids.
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