http://www.nwf.org/nwf/nwp/tvprograms/ranching.html
In Canada, veterinarian Dr. John Martin has been testing Renardine for
the Ontario Ministry of Agriculture, Food and Rural Affairs. Renardine
has been used the past century in England as a fox deterrent. Also known
as fox oil or bone oil, it is made from distilled animal bones that have
been turned into charcoal at high temperatures. It is non-toxic and
cheap. A 45 gallon drum costs approximately US$300. According to Dr.
Martin, three applications on fence posts spaced 20' apart around an 80-
acre pasture costs approximately $50.
Renardine works by smell. And boy does it smell! Sheep farmers in Great
Britain dab it on newborn lambs to keep foxes away, so it occurred to Dr.
Martin that it might just work on coyotes, too.
So far the results have been encouraging. Coyotes hate the stuff and will
go out of their way to avoid being anywhere near it. In field tests,
coyotes would not cross the Renardine “odor boundary” into a pasture
filled with sheep. Dr. Martin has also experimented with dabbing it
directly on sheep. The problem, however, is that humans don’t much
appreciate the smell, either, and Renardine must be reapplied every few
weeks. Still, Dr. Martin is hopeful that Renardine can become an
effective tool against predation.
Renardine is not yet commercially available in Canada or the United
States. Dr. Martin believes Canadian clearance for general use in
livestock and horticultural protection will be granted sometime in 1999.
Meanwhile in the U.S., Wildlife Services has recently begun tests on
Renardine at the coyote testing facility near Logan, Utah.
__________________________________
Mack P. Bray
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