Polyunsaturatd fatty acids, lipid peroxidation and antioxidant protection in avian semen.

PF Surai, N Fujihara, BK Speake, JP Brillard, GJ Wishart, NHC Sparks

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Avian spermatozoa are characterised by high concentrations of polyunsaturated fatty acids (PUFAs), in particular docosatetraenoic (DTA, 22:4n-6) and arachidonic (AA, 20:4n-6) acids. As a result they are vulnerable to lipid peroxidation, which is considered to be an important factor of male infertility. Antioxidant systems are expressed in spermatozoa and seminal plasma and build three major levels of antioxidant defense. The first level is based on the activity of superoxide dismutase (SOD) which is, in conjunction with glutathione peroxidase (GSH-Px), catalase and metal-binding proteins, responsible for prevention of free radical formation. The second level of defence is responsible for prevention and restriction of chain reaction propagation and includes chain-breaking antioxidants such as vitamin E, ascorbic acid, glutathione and some others. The third level of antioxidant defence deals with damaged molecules, repairing or removing them from the cell and includes specific enzymes such as lipases, proteases, DNA repair enzymes etc. In the review, profiles of PUFAs and the two first lines of antioxidant defence in avian spermatozoa are characterised. Dietary manipulation of the breeder''''s diet (PUFA, vitamin E and selenium) as an effective means of modulating fatty acid composition and antioxidant system is also considered. Antioxidant properties of seminal plasma and efficiencies of inclusion of antioxidants into semen diluents are also characterised.
Original languageEnglish
Pages (from-to)1024-1050
JournalAsian-Australasian Journal of Animal Sciences
Volume14
Issue number7
DOIs
Publication statusPrint publication - Jul 2001

Fingerprint

Semen
Lipid Peroxidation
semen
lipid peroxidation
Fatty Acids
Antioxidants
fatty acids
antioxidants
polyunsaturated fatty acids
antioxidant activity
seminal plasma
spermatozoa
glutathione peroxidase
Unsaturated Fatty Acids
vitamin E
Spermatozoa
semen extenders
Vitamin E
male fertility
enzymes

Cite this

Surai, PF ; Fujihara, N ; Speake, BK ; Brillard, JP ; Wishart, GJ ; Sparks, NHC. / Polyunsaturatd fatty acids, lipid peroxidation and antioxidant protection in avian semen. In: Asian-Australasian Journal of Animal Sciences. 2001 ; Vol. 14, No. 7. pp. 1024-1050.
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Polyunsaturatd fatty acids, lipid peroxidation and antioxidant protection in avian semen. / Surai, PF; Fujihara, N; Speake, BK; Brillard, JP; Wishart, GJ; Sparks, NHC.

In: Asian-Australasian Journal of Animal Sciences, Vol. 14, No. 7, 07.2001, p. 1024-1050.

Research output: Contribution to journalArticle

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