Manual surgical monitoring techniques can be tedious for lab technicians as well as animals, given the multiple welfare checks needed per day plus the need for workers to update records accordingly. Further complicating matters, manual monitoring is generally done during daytime work hours, which causes researchers to miss out on valuable nighttime data points and activities. Fortunately, laboratories around the globe have a new tool at their disposal: implantable radio frequency identification (RFID) microchips. This innovative technology monitors rodents’ home cage temperature and activity, “hands-free.”
With RFID microchips, lab animals can now be monitored in a non-invasive, real-time, continuous manner, while housed either singly or in groups. In a recent five-day study, our team at Envigo collaborated with the technology company Unified Information Devices in attempt to both enhance the pre- and post-surgical monitoring of cardiac surgical models and improve animal welfare.
Six groups of rats and six groups of mice were implanted with standard RFID microchips via intraperitoneal injection. Rodents were assigned to either an MI or TAC group and housed in one cage per study group. A wealth of data was generated from this study, bringing to light the many ways RFID technology can provide for more effective animal monitoring.+ Read more