Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/51550
Title: Sperm viability of canine and caprine semen samples preserved in a dry shipper
Authors: Batista, M. 
Santana, M.
Niño, T.
Alamo, D.
Cabrera, F. 
González, F.
Gracia, A. 
Keywords: Artificial-Insemination
Dog Spermatozoa
Liquid-Nitrogen
In-Vitro
Chilled Semen, et al
Issue Date: 2012
Publisher: 0378-4320
Journal: Animal Reproduction Science 
Abstract: This study assessed the efficacy of a dry shipper to preserve canine and caprine semen samples. After equilibration, semen straws from six Majorera bucks and five dogs were frozen and stored in liquid nitrogen (LN). Thirty days after freezing, half of the frozen straws were transferred from LN to a dry shipper (DS). Then, thawing was performed at 1, 2, 3, 5 and 7 days and the percentages of motile spermatozoa, acrosome intact spermatozoa and abnormal spermatozoa were determined. The sperm motility (total and progressive) of canine semen samples preserved with DS was quite similar to those preserved in LN, and no significant differences were observed throughout the experimental period. In addition, no differences were observed in the number of abnormal spermatozoa (range: 13.2-19.0%) or intact acrosome (range 91.3-95%) between both storage protocols. Buck semen samples showed equivalent levels of progressive motility (between 50% and 60%) and intact acrosome membrane (around 70%) during the first 3 days of storage in both procedures: however, from the fifth day of storage onwards, a notable decrease in semen quality was observed in the samples preserved in DS, showing a dramatic fall in the semen viability after 7 days of preservation (12.3% and 36.8%, progressive fast spermatozoa and acrosome integrity, respectively). In dog samples, the present study confirmed that seminal quality did not show modifications for the preservation period (7 days), confirming the efficacy of the dry shipper to preserve frozen samples for a short time. However, under the circumstances reported in this study, the sperm quality of buck samples preserved in the dry shipper only held during the first 3 days of storage, and therefore, its practical application could be more limited. (C) 2012 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/10553/51550
ISSN: 0378-4320
DOI: 10.1016/j.anireprosci.2011.12.018
Source: Animal Reproduction Science[ISSN 0378-4320],v. 130, p. 105-110
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