Non-healing subcutaneous hemorrhage in a colony of vampire bats (Desmodus rotundus) due to suspected vitamin C deficiency

The Milwaukee County Zoo has housed vampire bats (Desmodus rotundus) since 1973. The bats are fed defibrinated cow’s blood with a liquid pediatric multivitamin supplement. In November 2013, one bat developed a non-healing left wing hematoma. An August 2014 post-mortem examination revealed multifocal extensive necrohemorrhagic and suppurative ulcerative dermatitis with no underlying cause determined. From July to December 2014, five...

You can’t get blood from a stone, but you need to get it somewhere- vampire bat (Desmondus rotundus) feeding logistics

The beef blood collection procedures for three AZA zoological institutions to feed Desmodus rotundus are reviewed. Blood collected for the Philadelphia Zoo is done at slaughter and an anticoagulant is added. Blood collected for the Cincinnati Zoo is also done at slaughter but no anticoagulant is added and blood collected for the Brookfield Zoo is taken from live animals within...