Electronic identification. Progress report, October 1, 1979-September 30, 1980

The progress of an electronic identification system developed for livestock applications is reported. This work was begun in 1973 and is now being field tested. Field tests are underway at the Jornada Experimental Range, Las Cruces, New Mexico, and at the University of Illinois, Urbana, Illinois. These tests have proven the viability of the concept of electronic identification. Preliminary results are very encouraging, but indicate that subdermal temperature measurement is markedly affected by environmental conditions.