In this Deer & Deer Hunting exclusive video, Colorado State University Research Dr. Davin Henderson examines the myths and mysteries behind white-tailed deer urine and what he calls “illogical” regulations by state game departments when it comes to urine-based hunting lures.

Ironically, Henderson’s own research is what many states have been citing when drafting regulations to ban urine for the use of deer hunting.

xe2x80x9cThe infectious doses referenced in (some state regulations) were not for deer,xe2x80x9d he said. xe2x80x9cNo one knows the infectious dose for a deer. In this study I actually authored, the infectious dose was estimated for intercranial injections xe2x80x94 meaning it was injected directly into the brains xe2x80x94 of transgenic mice that are dramatically more susceptible to CWD compared to a normal mouse, and exponentially more than a deer. It is common to use such values as a reference since the standard curve for the estimation of CWD prions in urine was based on such intercranial inoculation and transgenic mice.xe2x80x9d

Colorado State University research also showed:

xe2x80xa2 The occurrence of CWD prions is 1 million times higher in carcass and lymphoid tissue and 100,000 times higher in deboned meat and digestive tissue than it is in deer urine.

xe2x80xa2 It is estimated that it would take 33,000 gallons of urine from a terminally infected CWD-deer to equal the infectivity in just 1 gram of brain.

Dr. Henderson’s presentation included these slides:

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