LIPIDS OF PORCINE SPERMATOZOA, SEMINAL PLASMA AND GEL

Abstract

In 41 ejaculates from 6 boars totalling 7.5 1 the spermatozoa, analysed on an individual ejaculate basis where possible, contained an average of 12.0% lipid which was composed of phospholipids (74.7%), cholesterol (12.6%), diglycerides (5.7%), tri-glycerides (4.5%) and wax esters (2.4%). Only a small portion of the dry matter of seminal plasma was lipid (0.23%), which was composed of phospholipids (64.7%), cholesterol (17.7%), diglycerides (5.8%), triglycerides (5.3%) and wax esters (6.5%). The gel fraction contained 0.32% lipid, composed of 51.6% phospholipid, 28.3% cholesterol, 6.3% diglycerides, 6.0% triglycerides and 7.8% wax esters.