The structure of the eggshell of the laughing dove Streptopelia senegalensis
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | The structure of the eggshell of the laughing dove Streptopelia senegalensis Die eierdopstruktuur van die rooiborsduif Streptopelia senegalensis (Lin) | |
| Creator | Steyn, P. J. Reinecke, A. J. Hamilton-Attwell, V. L. | |
| Description | The morphology of the eggshell of Streptopelia senegalensis was studied using scanning electron microscopy. Thirty eggs from various parts of southern Africa, dating from 1899 to 1983, were used in this study. Thickness of the eggshell was determined directly from the micrographs. The eggshell has a low pore density and no cuticula. The three-layered structure of the membranes appears to consist of a network of small tubes. The external layer is closely associated with the protein nucleus of the mammillary nodules of the eggshell, while the inner membrane borders on the albumine layer. The mean length, breath, thickness and mass of the eggshell of this species is 25,78 mm, 19,97 mm, 0,088 mm and 0,324 g respectively. Die morfologie van die eierdop van Streptopelia senegalensis is m.b.v. ’n skandeerelektronmikroskoop ondersoek. ’n Totaal van 30 eiers uit verskillende dele van suidelike Afrika is ondersoek; hulle dateer vanaf 1899 en die resentstes is in 1983 versamel. Die dikte van die eierdop is direk uit elektronmikroskoopmikrograwe bepaal. Die eierdop het nie ’n kutikula nie en het ’n lae poriedigtheid. Die membrane het ’n buisagtige voorkoms en bestaan uit drie lae. Die buitenste laag is met die proteienkern in die mammillere knoppe van die eierdop versmelt, terwyl die binnemembraan aan die sementagtige albumienlaag grens. Die membrane het ’n veselagtige voorkoms wat uit buisies bestaan. Die gemiddelde lengte, breedte, dikte en eierdopmassa van diespesie is 25,78 mm, 19,97 mm, 0,088 mm en 0,324 g respektiewelik. | |
| Publisher | AOSIS | |
| Date | 1986-03-17 | |
| Identifier | 10.4102/satnt.v5i1.973 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 5, No 1 (1986); 28-31 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 5, No 1 (1986); 28-31 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/973/2015
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