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Effects of antifreeze proteins on cryopreserved sterlet (Acipenser ruthenus) sperm motility variables and fertilization capacity

文献类型： 外文期刊

作者： Xin, Miaomiao 1 ; Tuckova, Vladimira 1 ; Rodina, Marek 1 ; Kholodnyy, Vitaliy 1 ; Dadras, Hadiseh 1 ; Boryshpolets, 1 ;

作者机构： 1.Univ South Bohemia Ceske Budejovice, Fac Fisheries & Protect Waters, South Bohemian Res Ctr Aquaculture & Biodivers Hy, Res Inst Fish Culture & Hydrobiol, Zatisi 728-2, Vodnany 38925, Czech Republic

2.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Sino Czech Joint Lab Fish Conservat & Biotechnol, Wuhan, Hubei, Peoples R China

关键词： Antifreeze proteins; Fertilization

期刊名称：ANIMAL REPRODUCTION SCIENCE （ 影响因子：2.145； 五年影响因子：2.281 ）

ISSN： 0378-4320

年卷期： 2018 年 196 卷

页码：

收录情况： SCI

摘要： The effect of antifreeze proteins on sterlet, Acipenser ruthenus sperm motility variables and fertilization rate were investigated after cryopreservation. Two types of antifreeze proteins (AFPI or AFPIII) were used at concentrations of 0.1, 1, 10 and 100 mu g/mL. The motility variables of fresh and cryopreserved sperm with and without addition of antifreeze proteins were evaluated by the Computer Assisted Semen Analyzer (CASA). The fertilization rate using about 200,000 spermatozoa per egg was evaluated after 54 h incubation at 17 degrees C during the early stage of organogenesis. The motility, curvilinear velocity and straight-line velocity of fresh sperm was 93 +/- 5%, 128 +/- 13 mu m/s and 89 +/- 9 mu m/s, respectively. There was a significant decrease of sperm motility rate between fresh sperm and cryopreserved sperm with/without addition of antifreeze proteins. The greatest motility among thawed samples was in the sperm cryopreserved with 10 mu g/mL of AFPI (56 +/- 20%), however, these data were not different compared to the sperm without antifreeze proteins (49 +/- 14%). No statistical variations were detected in curvilinear velocity nor straight-line velocity. The fertilization rate with fresh sperm was 67 +/- 7%. No significant differences were detected in fertilization rate between fresh and cryopreserved spermatozoa with/without addition of antifreeze proteins, except the sperm cryopreserved with 100 mu g/mL of AFPIII (39 +/- 14%). Thus, it is concluded that addition of antifreeze proteins to cryopreservation medium do not improve nor have toxicity effects on the quality and fertilization capacity of sterlet sperm after thawing.

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