Vampire Bat Control by Systemic Treatment of Livestock with an Anticoagulant

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Science  01 Sep 1972:
Vol. 177, Issue 4051, pp. 806-808
DOI: 10.1126/science.177.4051.806


The blood of beef cattle given single doses (1 milligram per kilogram of body weight) of diphenadione (2-diphenylacetyl-1,3-indandione) became toxic to vampire bats (Desmodus rotundus) and remained toxic for 3 days without harming the cattle. Cattle at three ranches in Mexico treated with single intraruminal injections of diphenadione experienced a reduction in vampire bat bites of 93 percent. Bioassays of milk and liver from cattle treated orally with diphenadione in the laboratory indicated that there were no residue problems.