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Rattlesnake venom is a mixture of five to fifteen enzymes, various metal ions, biogenic amines, lipids, free amino acids, proteins, and polypeptides. More specifically, there are three main families of toxins in rattlesnakes: phospholipases A2 (PLA2s), snake venom metalloproteinases (SVMPs), and snake venom serine proteinases (SVSPs). [ 49 ]
Common names: southwestern speckled rattlesnake, [2] Mitchell's rattlesnake, [3] more. Crotalus pyrrhus is a venomous pitviper species [2] found in the southwestern United States and northwestern Mexico. A medium-sized snake, it is found mostly in rocky country, active at night and feeding on small mammals. The coloration is variable and ...
The black-tailed rattlesnake is found in the southwestern United States in Arizona, New Mexico and west and central Texas, and Mexico as far south as Oaxaca, as well as the Gulf of California on San Estéban and Tiburón Islands. Its distribution reaches a maximum elevation of 2930 m, although it has been recorded at as high as 6900 feet at the ...
9 Venom. 10 Subspecies. 11 References. 12 Further reading. 13 External links. ... Each time the snake sheds its skin, a new segment is added to the rattle. However ...
[27] [28] However, because of its large venom glands and specialized fangs, the western diamondback rattlesnake can deliver a large amount of venom in a single bite. The average venom yield per bite is usually between 250 and 350 mg, with a maximum of 700–800 mg. [5] [29] Severe envenomation is rare but possible, and can be lethal. Mortality ...
Sistrurus tergeminus, also known as the western massasauga, is a rattlesnake found in the southwestern plains of the United States and northern Mexico. Like all rattlesnakes, it is a pit viper and is venomous .
CroFab is composed of several monovalent Fab (fragment antigen-binding) proteins derived from the blood of sheep immunized with one of four snake venoms: Crotalus atrox (western diamondback rattlesnake), Crotalus adamanteus (Eastern diamondback rattlesnake), Crotalus scutulatus (Mojave rattlesnake), or Agkistrodon piscivorus (cottonmouth or ...
Brown (1973) lists an average venom yield of 364 mg (dried) and LD 50 values of 4.0, 3.7 mg/kg IV, 6.0, 7.0, 6.7 mg/kg IP and 21.2 mg/kg SC for toxicity. [ 18 ] However, Norris (2004) warned this species has a relatively large venom yield containing high levels of proteolytic enzymes , especially in the adults.