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Levels of activity of superoxide dismutase in seminal plasma do not predict fertility of pig AI-semen doses
Univ Murcia, Spain; Univ Girona, Spain.
Univ Murcia, Spain.
Univ Murcia, Spain.
Univ Murcia, Spain.
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2019 (English)In: Theriogenology, ISSN 0093-691X, E-ISSN 1879-3231, Vol. 140, p. 18-24Article in journal (Refereed) Published
Abstract [en]

Superoxide dismutase (SOD) is a major antioxidant enzyme in boar seminal plasma (SP). This study evaluated how SP-SOD affected sperm attributes when semen of boars of various breeds, included in commercial artificial insemination (Al)-programs, was extended and liquid-stored at 17 degrees C for AI; as well as their in vivo fertility (farrowing rate and litter size of 10,952 AI-sows). SP-SOD-activity was assessed in 311 ejaculates (100 boars) while sperm motility (by CASA), viability and intracellular H2O2 generation in viable spermatozoa (by flow cytometry) were measured at 0 and 72 h of liquid storage. SP-SOD activity was not affected by breed but differed (P amp;lt; 0.001) between boars (n = 50), ranging from 1.16 +/- 0.11 to 7.02 +/- 0.75 IU/mL. Semen Al-doses (n =44) hierarchically grouped (P amp;lt; 0.001) with low SP-SOD activity showed lower (P amp;lt; 0.05) sperm motility and intracellular H2O2 at 72 h of liquid storage. Fertility did not differ between AI-boars (n = 39) hierarchically grouped (P amp;lt; 0.001) with high or low SP-SOD activity. In conclusion, SP-SOD activity is boar dependent and positively related with sperm functionality of liquid stored semen AI-doses. However, this positive effect is not reflected on in vivo fertility post-AI. (C) 2019 Elsevier Inc. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE INC , 2019. Vol. 140, p. 18-24
Keywords [en]
Superoxide dismutase; Artificial insemination; Fertility; Seminal plasma; Pig
National Category
Obstetrics, Gynecology and Reproductive Medicine
Identifiers
URN: urn:nbn:se:liu:diva-161827DOI: 10.1016/j.theriogenology.2019.08.010ISI: 000492488000003PubMedID: 31421531OAI: oai:DiVA.org:liu-161827DiVA, id: diva2:1370922
Note

Funding Agencies|MINECO Madrid (Spain) [AGL2015-69738-R]; FEDER Madrid (Spain) [AGL2015-69738-R]; Seneca Foundation Murcia (Spain)Fundacion Seneca [19892/GERM/15]; Swedish Research Council FormasSwedish Research CouncilSwedish Research Council Formas [2017-00946]; Swedish Research Council [Vetenskapsradet, VR]Swedish Research Council [2015-05919]; FORSS [Stockholm, Sweden] [745971]

Available from: 2019-11-18 Created: 2019-11-18 Last updated: 2019-11-18

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Rodriguez-Martinez, Heriberto
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Division of Children's and Women's healthFaculty of Medicine and Health Sciences
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