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Cryopreservation of boar semen and its future importance to the industry. | LitMetric

Cryopreservation of boar semen and its future importance to the industry.

Theriogenology

Centre de Recherche en Biologie de la Reproduction, Département des sciences animales, Université Laval, Québec City, Québec, Canada G1V 0A6.

Published: November 2008

AI Article Synopsis

Article Abstract

Whereas AI has arguably been the most important management tool leading to improved herd productivity, long-term storage of semen brings forth additional advantages to producers of agriculturally important animals and the AI industry. Semen cryopreservation greatly facilitates the distribution of agriculturally desirable genes, rapidly increasing herd productivity. Of particular importance to the pig industry, the use of frozen semen would help to control transmission of certain pathogens, thereby protecting the health status of the herd. Moreover, a reserve of cryopreserved semen would minimize the effects of a sudden outbreak of a contagious illness or a natural disaster. Successful cryopreservation of boar semen is necessary for international sales. Finally, effective gene banking depends on the availability of functional, cryopreserved germplasm. Despite these potential advantages of long-term semen storage, porcine sperm are notoriously sensitive to cold temperatures, and frozen-thawed semen is not routinely used by the industry. The objective of our laboratories is to develop protocols for efficient long-term storage of porcine semen using cryopreservation. We hypothesize that since the sperm plasma membrane is the primary site of cold-induced damage, reinforcing the membranes with molecules having particular properties, such as cholesterol, will improve the ability of boar sperm to withstand cold temperatures and cryopreservation protocols. Based on our data, such approaches should help alleviate the problems with sperm function after cooling, thereby resulting in better survival and motility characteristics, and reduced non-regulated capacitation and spontaneous acrosome reactions.

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Source
http://dx.doi.org/10.1016/j.theriogenology.2008.06.014DOI Listing

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