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FURTHER INVESTIGATIONS ON THE LIPIDS IN UDDER LYMPH AND PLASMA OF CATTLE
Author(s) -
Heyndrickx G. V.
Publication year - 1961
Publication title -
quarterly journal of experimental physiology and cognate medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0033-5541
DOI - 10.1113/expphysiol.1961.sp001512
Subject(s) - udder , lymph , sphingomyelin , lecithin , glyceride , chemistry , cholesterol , blood plasma , endocrinology , biochemistry , medicine , biology , fatty acid , pathology , mastitis
Lecithin, kephalin, sphingomyelin, glycerides and free and esterified cholesterol have been determined in udder lymph and plasma of the udder veins. Expressed in absolute values, each lipid fraction occurs in a significantly lower concentration in lymph than in plasma. Expressed as a percentage of total lipids however the phospholipids occur in a lower and the cholesterolesters in a higher proportion in lymph than in plasma. The lecithin expressed as a percentage of total phospholipids is lower in lymph than in plasma, while the reverse is true for the sphingomyelin; the kephalin proportion is the same in the two fluids. It is striking that fatty acids and phospholipids, two classes of lipids removed from the blood by the mammary gland, comprise a lower proportion of the total lipids in the lymph than in the plasma. Correlations between the various lipid fractions of the udder lymph and plasma are discussed.