Changes in lipid content of fowl spermatozoa after liquid storage at 2 to 5°C

被引:44
作者
Blesbois, E [1 ]
Grasseau, I [1 ]
Hermier, D [1 ]
机构
[1] INRA, Rech Avicoles Stn, F-37380 Nouzilly, France
关键词
fowl semen; liquid storage; lipids;
D O I
10.1016/S0093-691X(99)00132-6
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Quantitative and qualitative changes may occur in the lipids of spermatozoa during in vitro storage of gametes and may indicate possible degradations occurring within the cells under these conditions. The aim of the present study was to investigate such changes. The motility, viability, morphological integrity and lipid content were measured in fowl semen stored for 48 h at 2 to 5 degrees C and diluted 1:1 in Beltsville Poultry Semen Extender (BPSE) under aerobic agitation. The total lipid content of spermatozoa decreased (P<0.05) from 820 td 620 mu g/10(9) cells over 48 h. There was no significant evolution in the total lipid content of seminal plasma (1000 to 850 mu g/10(9) cells). The proportion of phospholipids in spermatozoa decreased from 75 to 60% of the total lipids. Among the phospholipids, the proportions of phosphatidylcholine, phosphatidylethanolamine and sphingomyelin decreased (P<0.05) from 58, 13 and 10% at 0 h to 42, 10 and 9% at 48 h, respectively. In contrast, lysophosphatidylcholine, which was marginally represented at 0 h (2%), increased considerably (24%) at 48 h. During the same period, the proportion of motile spermatozoa decreased from 87.5 to 46% and the proportion of viable and morphologically normal cells decreased from 84 to 48%. These results indicate the occurrence of lipid lysis, peroxidation and /or endogenous metabolism able to modify the structure of the spermatozoal membranes and to alter their metabolism and fusion abilities. (C) 1999 by Elsevier Science Inc.
引用
收藏
页码:325 / 334
页数:10
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