| Affiliation: | 1. Animal Production Unit, Food and Agriculture Organisation/International Atomic Energy Agency Agriculture and Biotechnology Laboratory, International Atomic Energy Agency, P.O. Box 100, A-1400 Vienna, Austria;2. Institute of Parasitology, Justus-Liebig University, D-35392 Gießen, Germany;3. Statistical and Biometrical Consultancy, Cambridge, UK;4. Animal Production and Health Section, Joint Food and Agriculture Organisation/International Atomic Energy Agency Division in Food and Agriculture, International Atomic Energy Agency, P.O. Box 100, A-1400 Vienna, Austria;1. Centre for Molecular Biology and Medicine, Monash University, Clayton 3168, Australia;2. Department of Biochemistry, Monash University, Clayton 3168, Australia |
