The long chain metabolites of linoleic and linolenic acids in liver and brain in herbivores and carnivores.

MA Crawford, NM Casperd, AJ Sinclair - 1976 - cabidigitallibrary.org
MA Crawford, NM Casperd, AJ Sinclair
1976cabidigitallibrary.org
Samples of liver, semitendinosus muscle and brain were taken from Ugandan kob (Adenata
kob) and spotted hyaena (Crocuta crocuta) shot at the Ishasha Reserve on the borders of
Queen Elizabeth National Park, Uganda. The samples were homogenized for estimation of
phospholipids and fatty acids. Tissues from other wild mammals were obtained from several
sources for study. The content of total phospholipid and the major phospholipid fractions in
liver and brain from the kob and hyaena were similar, although there were species …
Abstract
Samples of liver, semitendinosus muscle and brain were taken from Ugandan kob (Adenata kob) and spotted hyaena (Crocuta crocuta) shot at the Ishasha Reserve on the borders of Queen Elizabeth National Park, Uganda. The samples were homogenized for estimation of phospholipids and fatty acids. Tissues from other wild mammals were obtained from several sources for study. The content of total phospholipid and the major phospholipid fractions in liver and brain from the kob and hyaena were similar, although there were species variations in the acyl group of liver and muscle phospholipids. Brain phospholipids were constant. The major metabolite of linolenic acid was docosapentaenoate (C22:5, n-3) in the kob, but docosahexaenoate (C22:6, n-3) in the hyaena. Brain grey matter of both species contained the hexaenoate. Comparative studies from 30 species of small mammals, large non-ruminants, large ruminants, carnivores, primates and marine mammals showed that the brain ethanolamine phosphoglycerides had a relatively constant fatty acid composition despite wide variations in the fatty acid composition of those of the liver.
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