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THE LIPID CONTENT OF BOVINE SPERMATOZOA DURING MATURATION AND AGEING

Summary.: Several changes occurring during sperm maturation in the epididymis were determined either for spermatozoa obtained from consecutive ejaculates or from the caput and the cauda epididymidis.

A significant decline was found in the fresh weight of the cells during maturation and was attributed to dehydration and to a loss of certain components from the cells. This was proved by the increase in the % dry matter and by the decrease in the content of the dry matter, the total lipids and of the main lipid fractions of the cells during maturation.

The increase in the % dry matter and the decrease in the % total lipids in the dry matter explain the increase in the specific gravity of spermatozoa during maturation.

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				I. Thérien, R. Moreau, and P. Manjunath Bovine Seminal Plasma Phospholipid-Binding Proteins Stimulate Phospholipid Efflux from Epididymal Sperm Biol Reprod, September 1, 1999; 61(3): 590 - 598. [Abstract] [Full Text]