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A study by Marsh and Whaler (1984) reported a maximum yield of 9.7 mL of wet venom, which translated to 2400 mg of dried venom. They attached "alligator" clip electrodes to the angle of the open jaw of anesthetized specimens (length 133–136 cm, girth 23–25 cm, weight 1.3–3.4 kg), yielding 1.3–7.6 mL (mean 4.4 mL) of venom. Two to three ...
The venom yield from a mature snake is typically around 12mg, but 5mg is enough to kill an adult human. The dry bite rate is around 8%, which suggests the snake injects its victims with venom as ...
It has a very high venom yield, an average of 400–450 mg, with a maximum of 858–1,000 mg. [43] Brown gives an average venom yield of 410 mg (dried venom), along with LD 50 values of 1.3–2.4 mg/kg IV, 1.7–3.0 mg/kg IP and 14.5–10 mg/kg SC for toxicity. [44] The estimated human lethal dose is 100–150 mg. [43]
Average venom yield per bite is 37 mg and a maximum yield of 97 mg. [164] Bites from red-bellied black snake are rarely life-threatening due to the snake usually choosing to inject little venom toxin, but are still in need of immediate medical attention. Rate of envenomation is 40–60%, but the untreated mortality rate is less than 1%.
The longest venomous snake is the king cobra (Ophiophagus hannah), with lengths (recorded in captivity) of up to 5.7 m (19 ft) and a weight of up to 12.7 kg (28 lb). [53] It is also the largest elapid. The second-longest venomous snake in the world is possibly the African black mamba (Dendroaspis polylepis), which
These snakes grow 3 to 4 feet long with thick bodies and a high venom yield. While they are dangerous, timber rattlesnakes are also shy and avoid confrontation.
The quantity of venom produced by individual specimens of D. russelii is considerable. Venom yields for adult specimens have been reported as 130–250 mg, 150–250 mg, and 21–268 mg. For 13 juveniles with an average total length of 79 cm (31 in), the venom yield ranged from 8 to 79 mg (mean 45 mg). [5]
Potentially, this is one of North America's most dangerous snakes, due to its long fangs, impressive size, and high venom yield. This is to some degree offset by its relatively mild disposition [45] and long brumation period. Before striking, they often perform a good deal of preliminary rattling and feinting. [46]