Koç	Spermasının	Dondurulmasında Antioksidanların Etkisi

Ali ÖMÜR

Article Details

Koç Spermasının Dondurulmasında Antioksidanların Etkisi

Authors:

Ali ÖMÜR

Publisher:

Ataturk University

Main Topics:

Promotion of health

Journal:

Atatürk University Journal of Veterinary Sciences 2015 Vol.10 Issue 1, pp.61-69

Document Type:

Article

Publication Date:

4/2015

Document Language:

Turkish

Document ID (Org No.):

2000686757

Frequency:

Monthly

eISSN:

2822-3608

Abstract:

 

Antioxidants	are	two	types	in	terms	of	mechanism	of	their	action. In the	first	group,	the	antioxidants	retard	the oxidation	 by	 breaking	 the	 autoxidation	 chain,	 called	 primary	 antioxidants. Whereas, the	 second	 group	 are	 secondary antioxidants	that	prevent	the	onset	of	oxidation. Because	some	antioxidants	have	multiple	mechanisms	of	action,	they	are called	 as	multi-functional antioxidants. Antioxidative	 defence	mechanisms	 comprise	 some	 vitamins,	 chemical	 substances and	various	antioxidant	enzyme,	such	as	vitamins	A,	E,	C,	β-carotene,	reduced	glutathione	 (GSH). Vitamin	E	shows strong antioxidant	property	due	to	the	phenolic	hydroxyl	group	in	its	structure. It	builds	the	first	defence	line	that	protects	from free	 radical	 damage	 the	 PUFA	 in	 membrane phospholipids	 by	 chain	 breaker	 antioxidative	 activity. The	 most	 important antioxidant	enzymes	are	superoxide	dismutase	 (SOD)	 that	converts	 the	superoxide	anion	 to	H2O2,	glutathione	peroxidase (GSH-Px)	 that	detoxifies	 the	organic	peroxides	and	catalase	 that reduces	 the	H2O2 to	H2O. Ram	 semen	is	 rather	 sensitive against	the	cryopreservation,	since	the	unsaturated	 fatty	acids	constitute	the	major	part	of	sperm	membrane.	During	the semen	 cryopreservation	 processes,	 sperm	 membrane	 suffers	 from	 damage.	 This	 causes	 to	 deteriorated	 architecture	 in terms	of	fertilisation.	Supplementation	of	antioxidants	minimises	the damages	related	with	cryopreservation	of	semen.

Article Details

Koç Spermasının Dondurulmasında Antioksidanların Etkisi

Authors: Ali ÖMÜR

Publisher: Ataturk University

Main Topics: Promotion of health

Journal: Atatürk University Journal of Veterinary Sciences 2015 Vol.10 Issue 1, pp.61-69

Document Type: Article

Publication Date: 4/2015

Document Language: Turkish

Document ID (Org No.): 2000686757

Frequency: Monthly

eISSN: 2822-3608

Issues

Authors:

Ali ÖMÜR

Publisher:

Ataturk University

Main Topics:

Promotion of health

Journal:

Atatürk University Journal of Veterinary Sciences 2015 Vol.10 Issue 1, pp.61-69

Document Type:

Article

Publication Date:

4/2015

Document Language:

Turkish

Document ID (Org No.):

2000686757

Frequency:

Monthly

eISSN:

2822-3608