Effects of Vitamin E Supplementation on Lipid Peroxidation and Color Retention of Salted Calf Muscle from a Diet Rich in Polyunsaturated Fatty Acids

2001 ◽  
Vol 49 (12) ◽  
pp. 5951-5956 ◽  
Author(s):  
R. Granit ◽  
S. Angel ◽  
B. Akiri ◽  
Z. Holzer ◽  
Y. Aharoni ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Fatty Acids ◽  
Vitamin E ◽  
Polyunsaturated Fatty Acids ◽  
Calf Muscle ◽  
Color Retention ◽  
Vitamin E Supplementation

scholarly journals Quality of polyunsaturated fatty acids in Nile tilapias (Oreochromis niloticus) fed with vitamin E supplementation

2012 ◽  
Vol 134 (1) ◽  
pp. 215-218 ◽  
Author(s):  
Rodrigo Diana Navarro ◽  
Fernanda Keley Silva Pereira Navarro ◽  
Oswaldo Pinto Ribeiro Filho ◽  
Walter Motta Ferreira ◽  
Marcelo Maia Pereira ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Polyunsaturated Fatty Acids ◽  
Oreochromis Niloticus ◽  
Vitamin E Supplementation

Effects of n–3 Polyunsaturated Fatty Acids and Vitamin E on Colonic Mucosal Leukotriene Generation, Lipid Peroxidation, and Microcirculation in Rats with Experimental Colitis

Digestion ◽  
2001 ◽  
Vol 63 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Toshiaki Shimizu ◽  
Jun Igarashi ◽  
Yoshikzu Ohtuka ◽  
Satoshi Oguchi ◽  
Kazunari Kaneko ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Fatty Acids ◽  
Vitamin E ◽  
Polyunsaturated Fatty Acids ◽  
Experimental Colitis

262 EFFECT OF SYSTEMIC ANTIOXIDANT TREATMENT IN BOS TAURUS TAURUS BULLS UNDER HEAT STRESS AND SUPPLEMENTED WITH POLYUNSATURATED FATTY ACIDS

2015 ◽  
Vol 27 (1) ◽  
pp. 220
Author(s):  
E. Gualtieri de Andrade Perez ◽  
J. Diego di Agostini Losano ◽  
A. Dalmazzo ◽  
M. Nichi ◽  
V. Hyppolito Barnabe
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Fatty Acids ◽  
Heat Stress ◽  
Vitamin E ◽  
Polyunsaturated Fatty Acids ◽  
Bos Taurus ◽  
Antioxidant Treatment ◽  
Acute Heat Stress

One reason for lower fertility of European bulls in tropical regions is a higher rate of oxidative stress caused by increased production of reactive oxygen species (ROS) not compensated by antioxidant protection. In that regard, sperm are extremely susceptible to oxidative stress due to a high concentration of polyunsaturated fatty acids (PUFA) in their plasma membranes. However, the presence of these PUFA is fundamental for sperm to be fertile and resistant to cold shock. Thus, treatments that suppress oxidation may increase productivity of these animals. This study aimed to evaluate the most damaging ROS for European bulls subjected to heat stress and to determine a possible antioxidant-targeted treatment. In a second step, we sought to verify the efficiency of the interaction between a diet rich in PUFA and a targeted antioxidant treatment on the quality of ejaculated and epididymal sperm in European bulls subjected to testicular heat stress. Four Bos taurus bulls were subjected to scrotal insulation for 5 days, with semen collection (electroejaculation) 60 days after insulation. Semen from each bull was divided into 4 aliquots and subjected to 4 ROS-generating systems: superoxide anion (xanthine/xanthine oxidase), hydrogen peroxide, hydroxyl radical (ascorbate + ferrous sulfate), and malondialdehyde (MDA; lipid peroxidation product). Samples were incubated for 1 h and assessed by computerized sperm analysis (CASA); eosin/nigrosin (membrane integrity); fast-green/Bengal rose (acrosome integrity); 3,3′ diaminobenzidine (mitochondrial activity); sperm chromatin structure assay (DNA fragmentation); and thiobarbituric acid reactive substances (lipid peroxidation). Overall, MDA had the most deleterious effects on semen quality of Bos taurus bulls subjected to acute heat stress. Thereafter, 16 bulls were subjected to testicular insulation and allocated into 4 groups: control (n = 4; given mineral oil; placebo); vitamin E (n = 4, given 5 mL of Monovin® every 13 days); PUFA (n = 4; given 4 kg day–1 Megalac®); and PUFA+vitamin E (n = 4; combination of PUFA and vitamin E treatment groups). Semen was collected on the day of installation of the insulation, on the day it was removed, and 30 and 60 days later. Overall, vitamin E reduced heat stress-induced damage to sperm DNA and mitochondria, but only in samples collected from the epididymis. Similarly, the combination of vitamin E and PUFA supplementation improved sperm motility patterns. Therefore, a combined antioxidant treatment (vitamin E and PUFA) may reduce damage to sperm caused by acute heat stress in European bulls. However, this treatment may be more effective if instituted before heat stress.

Enrichment of eggs with n−3 polyunsaturated fatty acids: Effects of vitamin E supplementation

Lipids ◽  
2001 ◽  
Vol 36 (8) ◽  
pp. 833-838 ◽  
Author(s):  
Tilman Grune ◽  
Klaus Krämer ◽  
Peter P. Hoppe ◽  
Werner Siems
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Polyunsaturated Fatty Acids ◽  
Vitamin E Supplementation
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