Our question this week was:
Doctor - I have 5 cats and 3 love catnip - actually go CRAZY and the other 2 sort of ignore it. Why is that?
Bonnie K. - West Virginia
Hi - thanks for your email Bonnie. You wrote that a couple of your cats ignore the catnip and you wonder why?
Catnip is interesting - for all of our scientific know-how, we still have not uncovered the secret of why cats are attracted to catnip.
First, what is catnip? According to a dictionary definition, "catnip is a strong-scented mint (Nepeta cataria) that has whorls of small, pale flowers in terminal spikes and contains a substance attractive to cats."
Though still a mystery, the substance in catnip that attracts cats has been isolated. It's a volatile turpenoid, and has a specific chemical name: nepetalactone. The behavior that allows cats to be attracted to catnip is inherited as an autosomal dominant gene. It has been found that approximately 10-30 % of domestic cats may be unresponsive to active chemical nepetalactone.
Reports estimate that 30 to 70 % of cats are actually attracted to catnip. Kittens do not respond to catnip until about 6 to 8 weeks and most develop the response by 12 weeks.
But when it works, it really works, appearing to drive cats wild with excitement.
Thanks for your question,
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