The protective effect of antioxidants on liquid and frozen stored ram semen

Csilla Budai

Abstract


This systematic review is focusing on the current literature in order to give an overview of the protective role of antioxidants in ram semen preservation. Throughout the sperm conservation process the unsaturated fatty acids of the spermatozoa membrane binds oxygen and evolves numerous peroxide bonds. The lipid peroxidation leads to unbalanced oxidative stress that causes different impairments of sperm cells, and acrosome loss. ,,Cold shock” also induces caspase cascade involved in apoptosis, DNA fragmentation and in overall it has a detrimental effect on the fertilizing capacity of spermatozoa. Nowadays the cryopreservation of semen is considered as a routine procedure in cattle. Despite the various advantages of the method, the recovery rate of live and intact spermatozoa still remains low in boar, dog and ram samples. Previously several studies highlighted that the addition of antioxidants could improve the survival and motility rates, because antioxidants acted as free radical scavengers and protected spermatozoa against reactive oxygen species (ROS). Enzymatic antioxidants as superoxide dismutase (SOD), catalase, glutathione peroxidase (GPX) and non-enzymatic antioxidant molecules like tocopherol, ascorbic acid, pyruvate, resveratrol have a protective effect against membrane damage that occurs during semen preservation process.


Keywords


Antioxidant, curcumin, ram, semen, sheep

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
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