The lipid,fatty acid and amino acid composition of ratite eggs from three different species of kiwis Apteryx australis mantelli,A. haasti and A. oweni bred in captivity on the same diet |
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| Institution: | 1. Applied Biochemistry Division, Department of Scientific and Industrial Research, Palmerston North, New Zealand;2. Wildlife Service, Department of Internal Affairs, Wellington, New Zealand;1. College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China;2. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China;3. College of Electrical and Information Engineering, Hunan University, Changsha, 410082, China;4. Chinese Academy for Environmental Planning, Beijing, 100012, PR China;1. Harvard Forest, Harvard University, Petersham, MA 01366, USA;1. Group of Aquatic Macrophytes Ecology, Centre d''Estudis Avançats de Blanes (CEAB-CSIC), Blanes, Girona 17300, Spain;2. CRETUS, EcoPast (GI-1553), Facultade de Bioloxía, Universidade de Santiago de Compostela, Campus Sur s/n, Santiago de Compostela 15782, Spain;3. Department of Biology & CESAM – Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal;4. Centre for Marine Ecosystems Research, Edith Cowan University, Joondalup, Western Australia, Australia;5. Department of Ecoscience, Aarhus University, C.F. Møllers Allé, Building 1131, Aarhus DK-8000, Denmark;6. Bolin Centre for Climate Research, Stockholm University, Stockholm SE-106 91, Sweden |
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| Abstract: | The lipid composition of the eggs obtained from three different species of New Zealand kiwis (Apteryx australis mantelli, A. haasti and A. oweni) were investigated and compared. Although those of A. australis mantelli were known to have high levels of triacylglycerols and Iow levels of phospholipids (83% and 8% respectively), the other species had reduced quantities of triacylglycerols (65–69%) but compensated with increased levels of phospholipids (23–24%). These findings were similar to those of the domestic hen eggs. As regards to the proportion of lipid to protein in the kiwi eggs, A. australis mantelli and A. haasti contained similar ratios of 1.00–0.51 but A. owenihad higher levels of lipids, 1.00–0.38. The distribution of amino acids in each case was similar. |
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