The fatty acid composition of brain phospholipids from chicken and duck embryos

Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
A MaldjianB K Speake

Abstract

The effects of differences in the fatty acid composition of the lipids of egg yolk on the subsequent levels of arachidonic acid (20:4n-6) and docosahexaenoic acid (22:6n-3) in the total phospholipids and in the isolated phospholipid classes of the embryonic brain were investigated by a comparison of two domesticated avain species, the chicken and the duck. The yolk phospholipids of chicken eggs contained similar proportions of 20:4n-6 and 22:6n-3 (approx. 6% wt/wt of total fatty acids). In marked contrast, the yolk phospholipids of commercially produced duck eggs contained an overwhelming preponderance of 20:4n-6 over 22:6n-3 (approx. 10% cf.1%). These differences between the yolks of the two species were only partly reflected in the fatty acid compositions of the total phospholipids of the embryonic brains at equivalent developmental stages. Typically, the chicken brain phospholipids contained approximate proportions of 20:4n-6 and 22:6n-3 of 8% and 17%, respectively, whereas both these polyunsaturates were present at approx. 11% in the duck samples. The brain phospholipids were resolved into their component phospholipid classes by high performance liquid chromatography. In both species, phosphatidylcholine contained only low ...Continue Reading

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Citations

Oct 9, 1998·Progress in Lipid Research·B K SpeakeR C Noble
Jan 7, 1998·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·K A KelsoB K Speake
Jan 13, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·B K Speake, M B Thompson
Sep 28, 2001·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·R R MillerA L Greenman
May 7, 2009·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Cynthia J Lawniczak, Mark A Teece
Apr 14, 2016·Oxidative Medicine and Cellular Longevity·Phuong Anh Nguyen ThiLu Xie
Jun 9, 2005·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Brian K Speake, Nicholas A R Wood
Mar 15, 2006·Environmental Pollution·Stefan VoorspoelsPaul Schepens
May 7, 2013·European Journal of Nutrition·Paola CastrogiovanniRosa Imbesi
Dec 29, 2020·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Paul L Else
Apr 3, 2004·Journal of Animal Physiology and Animal Nutrition·A SchiavoneM Marzoni
Jan 20, 2021·The Journal of Experimental Biology·Jessika LamarreDavid R Wilson
Nov 21, 2013·Journal of Agricultural and Food Chemistry·Xiang DuanXueming Xu

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