SOME PHYSICAL REQUIREMENTS FOR OSTRICH EGG INCUBATION

Autor:	M. J. F. Jarvis, R. H. Keffen, C. Jarvis
Rok vydání:	1985
Předmět:	Animal science Struthio camelus australis Hatching embryonic structures Relative humidity Biology Incubation Ecology Evolution Behavior and Systematics Egg incubation
Zdroj:	Ostrich. 56:42-51
ISSN:	1727-947X 0030-6525
DOI:	10.1080/00306525.1985.9639568
Popis:	Summary Jarvis, M. J. F., Keffen, R. H. & Jarvis, C. 1985. Some physical requirementsfor Ostrich egg incubation. Ostrich 56: 42–51. Eggs from wild and domesticated Ostriches Struthio camelus australis were studied to determine temperature and humidity requirements for successful incubation. Wild eggs in Zimbabwe included some collected and incubated artificially, and others that were naturally incubated until just before hatching. Egg-weight losses during incubation were measured. The eggs artificially incubated at 35 °C to 36°C and 40–42% relative humidity, lost nearly the same weight as did eggs in naturally incubated nests. Comparisons were made between the wild eggs and chicks, and those from domesticated hybrid-strain Ostriches in Bophuthatswana. The discussion outlines some of the remaining problems associated with Ostrich egg incubation.
Databáze:	OpenAIRE
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