Venom Ontogeny in the Mexican Lance-Headed Rattlesnake (Crotalus polystictus)

  title={Venom Ontogeny in the Mexican Lance-Headed Rattlesnake (Crotalus polystictus)},
  author={Stephen P. Mackessy and Jamie Leroy and Estrella Moci{\~n}o-Deloya and Kirk Setser and Robert W. Bryson and Anthony J. Saviola},
As trophic adaptations, rattlesnake venoms can vary in composition depending on several intrinsic and extrinsic factors. Ontogenetic changes in venom composition have been documented for numerous species, but little is known of the potential age-related changes in many rattlesnake species found in México. In the current study, venom samples collected from adult and neonate Crotalus polystictus from Estado de México were subjected to enzymatic and electrophoretic analyses, toxicity assays (LD50… 

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