Document Detail

Vitamin E supplementation reduces dexamethasone-induced oxidative stress in chicken semen.
MedLine Citation:
PMID:  16787860     Owner:  NLM     Status:  MEDLINE    
1. We examined the effects of supplemental dietary vitamin E (Vit E) on semen quality and antioxidative status in male domestic fowls exposed to oxidative stress induced by synthetic glucocorticoid, dexamethasone (DEX) injection. 2. Thirty-six Egyptian local cross males, 42 weeks old, were housed individually in cages in an open-sided building under 16 h light:8 h dark and were provided with commercial feed and water ad libitum. Birds were divided into 4 groups: DEX (4 mg/bird/d), Vit E (200 mg/kg diet), DEX + Vit E (4 mg/bird/d + 200 mg/kg diet, respectively) and control, n = 9. All treatments lasted for 7 continuous days. 3. Oxidative stress induced by injection of DEX (4 mg/bird/d) resulted in decreased sperm count and motility correlated with an increased percentage of dead sperms. Vit E (200 mg/kg diet) enhanced sperm count and viability when supplemented to stress-induced birds, compared to DEX treatment alone. 4. In seminal plasma, low calcium concentration, high lipid peroxidation and reduced activity of glutathione peroxidase were associated with the oxidative stress. Vit E reduced lipid peroxidation in the seminal plasma. 5. In conclusion, excessive supplemental dietary Vit E improved semen quality when cockerels were subjected to stress conditions. It increased both sperm count and motility, reduced the percentage of dead sperm and enhanced the antioxidative status of seminal plasma.
Y Eid; T Ebeid; H Younis
Publication Detail:
Type:  Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  British poultry science     Volume:  47     ISSN:  0007-1668     ISO Abbreviation:  Br. Poult. Sci.     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-21     Completed Date:  2006-08-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  15740290R     Medline TA:  Br Poult Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  350-6     Citation Subset:  IM    
Department of Poultry Production, Kafr El-Sheikh Faculty of Agriculture, Tanta University, Kafr El-Sheikh, Egypt.
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MeSH Terms
Anti-Inflammatory Agents / pharmacology
Dexamethasone / pharmacology*
Dietary Supplements
Insemination, Artificial / veterinary
Oxidative Stress / drug effects*
Semen / drug effects*,  metabolism*
Vitamin E / pharmacology*
Reg. No./Substance:
0/Anti-Inflammatory Agents; 1406-18-4/Vitamin E; 50-02-2/Dexamethasone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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