Porcine zona pellucida vaccine immunocontraception of African elephant (Loxodonta africana) cows: A review of 22 years of research

by Hendrik J. Bertschinger, Audrey Delsink, J.J. van Altena, Jay F. Kirkpatrick
Published 2018-07-01

Implementing immunocontraception in free-ranging African elephants at Makalali Conservancy

by A.K. Delsink, J.J. Van Altena, D. Grobler, H.J. Bertschinger, J.F. Kirkpatrick, R. Slotow
Published 2007-05-01