eprintid: 3 rev_number: 4 eprint_status: archive userid: 2 dir: disk0/00/00/00/03 datestamp: 2004-03-29 lastmod: 2015-05-29 19:45:11 status_changed: 2009-04-08 16:51:49 type: report metadata_visibility: show item_issues_count: 0 creators_name: Edwards, Carina creators_name: Ovenden, Nick creators_name: Rottschäfer, Vivi contributors_name: Aguareles, Maria contributors_name: Dellar, Paul contributors_name: Dewynne, Jeff contributors_name: Healy, James contributors_name: Hill, Andrew contributors_name: Hogg, Andrew contributors_name: Howell, Peter contributors_name: Howison, Sam contributors_name: Kaouri, Katerina contributors_name: Dixon, Matthew contributors_name: Lewis, Miranda contributors_name: Marheineke, Nicole contributors_name: Ockendon, John contributors_name: Please, Colin contributors_name: Roose, Tiina title: Incubation of penguin eggs ispublished: pub subjects: other studygroups: esgi46 companyname: Bristol Zoo Gardens full_text_status: public abstract: The preservation of rare and endangered species of birds requires finding efficient, and above all successful, methods of breeding them in captivity. One strategy adopted is to remove eggs from the mother, making her lay more eggs, and then incubating the removed eggs artificially. Artificial incubation machines must attempt to replicate the conditions of natural incubation as closely as possible. Aside from careful control of temperature and humidity within the artificial incubator, an important factor to reproduce is that eggs must be turned about their long axis from time to time. Hatching will not occur in an egg that is not subjected to some form of occasional rotation. The reason why eggs are turned and the way in which they should be turned are still not well understood. The Study Group attempted to gain some insight into why eggs have to be turned from a fluid dynamic perspective. A simple egg-turning model for an egg at the first stages of incubation was constructed, based on lubrication theory. date: 2003-04 date_type: published official_url: http://www.smithinst.ac.uk/Projects/ESGI46-Zoo/ citation: Edwards, Carina and Ovenden, Nick and Rottschäfer, Vivi (2003) Incubation of penguin eggs. [Study Group Report] document_url: http://miis.maths.ox.ac.uk/miis/3/1/PenguinEggs.pdf