Journal ArticleDOI
Roles of Antioxidants on Prolonged Storage of Avian Spermatozoa In Vivo and In Vitro
TLDR
Dietary supplementation with vitamin E is effective in limiting lipid peroxidation of sperm plasma membranes, both in chickens and turkeys, and organic Se with or without vitamin E stimulates Se‐GSH‐Px activity in seminal plasma.Abstract:
This review focuses on natural and assisted prevention against lipid peroxidation in avian spermatozoa. The presence of high levels of n-6 polyunsaturated fatty acids (PUFAs) in the plasma membrane creates favorable conditions for the formation of peroxidative products, a major cause of membrane damage which may ultimately impair male fertility. However, a complex antioxidant system involving vitamin C, vitamin E and GSH is naturally present in avian semen. Coupled with a battery of enzymatic defenses (e.g., SOD, GSH-Px either Se- or non-Se-dependent), this system acts to prevent or restrict the formation and propagation of peroxides. The presence of specialized sites dedicated to prolonged sperm storage in avian females raises the question of durable protection of sperm membranes against peroxidation. Preliminary observations have revealed the presence of a specific antioxidant system at these sites in which vitamin C could exert a major role. From a practical standpoint, the extensive use of artificial insemination in poultry, along with the emergence in some species of workable techniques to cryopreserve spermatozoa, demand better control of peroxidation occurring in the plasma membrane of spermatozoa before or during storage. Dietary supplementation with vitamin E is effective in limiting lipid peroxidation of sperm plasma membranes, both in chickens and turkeys. In addition, organic Se with or without vitamin E stimulates Se-GSH-Px activity in seminal plasma. Preliminary observations in female chickens have also revealed the effectiveness of dietary supplementation with vitamin E, organic selenium or both to sustain fertility in aging flocks.read more
Citations
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Effect of Male Broiler Breeder Feeding Programs on Growth, Reproductive Performance, and Broiler Progeny
TL;DR: When males failed in accumulate adequate nutrients during the rearing period or gain adequate BW, as an indication of ME allocation, after photostimulation fertility declined and significant negative effects were observed in progeny performance.
Journal ArticleDOI
The effects of different levels of Nano selenium on the quality of frozen-thawed sperm in ram
TL;DR: In this paper, the effects of nano selenium as antioxidant on ram semen were studied and the results showed that 1 and 2 µg/ml of nano-selenium was added to extenders for two months from four rams.
Journal ArticleDOI
Advances in storage of poultry semen
TL;DR: In this article , a review of sperm preservation in poultry is presented, focusing on current poultry preservation systems, published since 2010, and new strategies that are very promising for preserving avian genetic resources.
Vitamin E and Fertility in the Poultry Birds;Deficiency of Vitamin E and its Hazardous Effects
Aamir Nawab,Shuyan Tang,Wenchao Liu,Jiang Wu,Fahar Ibtisham,Yi Zhao,Kai Kang,Chenyu Sun,Guanghui Li,Mei Xiao,Lilong An +10 more
TL;DR: Several findings from animal studies show that vitamin E has low toxicity and it still has not been classified as mutagenic, carcinogenic, or teratogenic.
Journal ArticleDOI
Enzyme Histochemical Localization of Peroxidase Activity in the Oviduct of Immature, Laying and Non-laying Hens
TL;DR: The results suggest that the surface epithelium of the vagina contains peroxidase activity in laying hens, which may play roles in innate host immunity and affect the sperm viability passing the vagina.
References
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Journal ArticleDOI
Reactive oxygen species and human spermatozoa. I. Effects on the motility of intact spermatozoa and on sperm axonemes.
E. de Lamirande,Claude Gagnon +1 more
TL;DR: The data suggest that ROS induce a chain of events leading to sperm immobilization, that axonemes are affected, and that limited endogenous repair mechanisms exist to reverse these damages.
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Role of glutathione peroxidase in protecting mammalian spermatozoa from loss of motility caused by spontaneous lipid peroxidation.
Juan G. Alvarez,Bayard T. Storey +1 more
TL;DR: A mechanism for spontaneous lipid peroxidation in mammalian sperm is postulated which involves reaction of lipid hydroperoxide and O2 as the rate-determining step and the key intermediate is lipid hydro peroxide generated by a chain reaction initiated by and utilizing superoxide.
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Lipid composition and thermotropic phase behavior of boar, bull, stallion, and rooster sperm membranes.
John E. Parks,Daniel V. Lynch +1 more
TL;DR: A difference in both composition and thermotropic phase behavior of glycolipids between rooster and mammalian sperm is demonstrated which may be related to the greater tolerance of rooster sperm to rapid cooling.
Journal ArticleDOI
Lipid peroxidation in human spermatozoa as related to midpiece abnormalities and motility.
TL;DR: The results suggest that poor motility is linked with membrane fragility and that spermatozoa with midpiece abnormalities probably have membrane and/or cytoplasmic antiperoxidant system defects.