Einfluß unterschiedlich hoher Vitamin-E-Gaben an Mastschweine auf die Fleisch- und Speckqualität in Abhängigkeit von der Lagerung

Berk, Andreas; Rosenbauer, Heiko; Mancini, Vittorio; Vemmer, Herward; Schaarmann, Grit; Flachowsky, Gerhard

doi:10.1007/s003940050013

Cited by 4 publications

(2 citation statements)

References 6 publications

(8 reference statements)

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“…Several studies reported that dietary vitamin E supplementations had no influence on pH and colour brightness (Berk et al, 1998;Hoving-Bolink et al, 1998;Zanardi et al, 1999;Hasty et al, 2002). Though growth rate was improved due to vitamin E supplementation in a study of Asghar et al (1991a), dressing percentages, cold carcass weights and evaporative losses in carcasses were identical for all treatments.…”

Section: Growth Performance and Carcass Characteristicsmentioning

confidence: 88%

“…Surprisingly RIT and TBARS correlated positively (r = 0.142), what could not be explained clearly. Berk et al (1998) reported negative correlations between RIT and TBARS, which seemed to be more consequential. Jensen et al (1997) described positive correlations between dietary a-tocopherol content and oxidative stability of lipids in M. psoas major and M. longissimus dorsi.…”

Section: Vitamin E and C Supplementation For Pigsmentioning

confidence: 89%

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Influence of dietary vitamin E and C supplementation on vitamin E and C content and thiobarbituric acid reactive substances (TBARS) in different tissues of growing pigs

Eichenberger

Pfirter²,

Wenk³

et al. 2004

Archives of Animal Nutrition

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To investigate the influence and possible interactions of dietary vitamin E and C supplementation on vitamin content of both vitamins and oxidative stability of different pork tissues 40 Large White barrows from 25 kg to 106 kg were allocated to four different cereal based diets: Basal diet (B), dl-alpha-tocopherylacetate + 200 mg/kg (E), crystalline ascorbic acid + 300 mg/kg (C) or both vitamins (EC). At slaughtering samples of liver, spleen, heart, kidney, backfat outer layer, ham and M. tongissimus dorsi were obtained. Growth performance of the pigs and carcass characteristics were not influenced by feeding treatments. Dietary vitamin E supplementation had a significant effect on the vitamin E and alpha-tocopherol concentration in all investigated tissues. Backfat outer layer, liver, spleen, kidney and heart had higher vitamin E concentrations than ham and M. longissimus dorsi. Dietary vitamin C supplementation tended towards enhanced vitamin E levels except for ham samples. Therefore, some synergistic actions without dietary vitamin E supplementation between the two vitamins could be shown. The vitamin C concentration and TBARS were increased or at least equal in all tissues due to vitamin C supplementation. Dietary alpha-tocopherol supplementation resulted in lower TBARS in backfat outer layer (malondialdehyde 0.35 mg/kg in B vs. 0.28 mg/kg in E), but increased in heart and ham. When both vitamins were supplemented (EC) TBARS were lower in M. longissimus dorsi and backfat outer layer, equal in heart and higher in liver and ham compared to a single vitamin C supplementation. Rancimat induction time of backfat outer layer was 0.3 h higher in C compared to B and 0.17 h higher in EC than in E. Correlations between levels of both vitamins were positive for kidney (r = 0.169), M. longissimus dorsi (r = 0.499) and ham (r = 0.361) and negative for heart (r = -0.350). In liver and spleen no interaction could be found. In backfat outer layer vitamin E was positively correlated with rancimat induction time (r = 0.550) and negatively with TBARS (r = -0.202), but provided no evidence that dietary vitamin E supply led to better oxidative stability.

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Section: Growth Performance and Carcass Characteristicsmentioning

confidence: 88%

Section: Vitamin E and C Supplementation For Pigsmentioning

confidence: 89%

Influence of dietary vitamin E and C supplementation on vitamin E and C content and thiobarbituric acid reactive substances (TBARS) in different tissues of growing pigs

Eichenberger

Pfirter²,

Wenk³

et al. 2004

Archives of Animal Nutrition

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Vitamin E-Transfer from Feed into Pig Tissues

Flachowsky¹

2000

Journal of Applied Animal Research

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Methods to assess free radicals and oxidative stress in biological systems

Rimbach

Höhler

Fischer

et al. 1999

Archiv für Tierernaehrung

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Oxidative stress results from a disruption of the prooxidant/antioxidant cellular balance and monitoring free radical status becomes an interesting challenge in animal and human nutrition. In the present work, merits and limitations of different analytical techniques (HPLC, GC-MS, fluorometric and colourometric assays, ELISA, gel electrophoresis) for the measurement of radical mediated alterations in the cellular integrity of lipids (malondialdehyde, hydrocarbon gases, F2-isoprostanes) proteins (protein carbonyls, 3-nitrotyrosine) and DNA (8-hydroxy-2'-deoxyguanosine) are discussed. Besides these indirect methods, owing to the fact that free radicals are paramagnetic, electron paramagnetic resonance spectroscopy combined with spin trapping has become a valuable tool to directly assess and to better understand the mechanisms of free radical reactions. With this approach a radical that is too short-lived to be detected, adds to a spin-trapping agent to form a relatively long-lived radical adduct. Information obtained from the hyperfine splitting of the spin-trapped adduct can provide identification and quantification of the originally generated free radicals.

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Einfluß unterschiedlich hoher Vitamin-E-Gaben an Mastschweine auf die Fleisch- und Speckqualität in Abhängigkeit von der Lagerung

Cited by 4 publications

References 6 publications

Influence of dietary vitamin E and C supplementation on vitamin E and C content and thiobarbituric acid reactive substances (TBARS) in different tissues of growing pigs

Influence of dietary vitamin E and C supplementation on vitamin E and C content and thiobarbituric acid reactive substances (TBARS) in different tissues of growing pigs

Vitamin E-Transfer from Feed into Pig Tissues

Methods to assess free radicals and oxidative stress in biological systems

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