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Type: Journal article
Title: Cryopreservation of sperm in farmed Australian greenlip abalone Haliotis laevigata
Author: Liu, Y.
Xu, T.
Robinson, N.
Qin, J.
Li, X.
Citation: Cryobiology, 2014; 68(2):185-193
Publisher: Elsevier
Issue Date: 2014
ISSN: 0011-2240
Statement of
Yibing Liu, Tong Xu, Nicholas Robinson, Jianguang Qin, Xiaoxu Li
Abstract: This study investigated factors important to the development of the liquid nitrogen (LN) vapor sperm cryopreservation technique in farmed greenlip abalone Haliotis laevigata, including (1) cryoprotectant agent (CPA) toxicity; (2) cooling temperature (height above LN surface); (3) thawing temperature; (4) sperm to egg ratio; and (5) sugar supplementation, using sperm motility, fertilization rate or integrity/potential of sperm components and organelles as quality assessment indicators. Results suggested that among the single CPAs evaluated 6% dimethyl sulfoxide (Me2SO) would be the most suitable for sperm cryopreservation in this species. The highest post-thaw sperm motility was achieved with the sperm that had been exposed to LN vapor for 10min at 5.2cm above the LN surface, thawed and recovered in 60 and 18°C seawater bathes, respectively after at least 2h storage in LN. The highest fertilization rates were achieved at a sperm to egg ratio of 10,000:1 or 15,000:1. Addition of 1% glucose or 2% sucrose produced significantly higher post-thaw sperm motility than 6% Me2SO alone. Among the three cryoprotectant solutions further trialled, 6% Me2SO+1% glucose produced the highest fertilization rate of 83.6±3.7%. Evaluation of sperm has shown that the addition of glucose could significantly improve the sperm plasma membrane integrity and mitochondrial membrane potential. These results demonstrated a positive role of glucose in the improvement of sperm cryopreservation in farmed greenlip abalone.
Keywords: Farmed greenlip abalone; haliotis laevigata; sperm cryopreservation; glucose
Rights: © 2014 Elsevier Inc. All rights reserved.
DOI: 10.1016/j.cryobiol.2014.01.002
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Appears in Collections:Animal and Veterinary Sciences publications
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