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首页> 外文期刊>Czech Journal of Animal Science >Effects of dietary organic selenium supplementation on selenium content, antioxidative status of muscles and meat quality of pigs
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Effects of dietary organic selenium supplementation on selenium content, antioxidative status of muscles and meat quality of pigs

机译：日粮添加有机硒对猪硒含量，肌肉抗氧化状态和肉品质的影响

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摘要

The effects of feeding a high level of organic selenium on the level of selenium, antioxidative status of in, longissimus lumbonim et thomcis (MLLT) and m. semimembranosus (MSM) and meat quality of pigs (defined on malignant hyperthermia status, DNA based test) were investigated. Treatments consisted in supplementation of organic selenium {0.3 mg Se/kg diet) for the last 97 days to finishing pigs (basic diet with 0.18 mg Se/kg diet) before slaughter. MLLT was further examined for pH (45 min, 24 h), colour and conductivity (24 h), drip loss (48 h} and myofibrillar fragmentation index (MFI, 5 days). Chemical composition (protein, intramuscular fat) was also estimated. Concentration of Se (spectrofluorometric method) and antioxidative status (rate of oxidation by stimulation with Fe~(2+)ascorbate, production of malondialdehyde - MDA) were estimated in muscle samples obtained post mortem. The level of selenium was more than twice higher (P < 0.05} in muscles from pigs treated with higher selenium thanin controls (0.377 vs. 0.922 mg/kg - MLLT and 0.377 vs. 0.836 mg/kg - MSM). The rate of oxidation was positively (P < 0.05) influenced by Se supplementation. Tendencies to lower drip losses were observed in MLLT of pigs supplemented with Se but the differences were not significant (P > 0.05). We concluded that dietary organic Se supplementation (0.3 mg Se/kg diet) to basic diet (0.18 mg Se/kg diet) of finishing pigs significantly increasedthe selenium concentration and improved the antioxidative status of muscle tissue.
机译：饲喂高水平的有机硒对硒水平，长寿树和龙虾的抗氧化状态的影响。研究了猪的半膜（MSM）和肉的品质（根据恶性高热状态定义，基于DNA的测试）。处理方法包括在屠宰前的最后97天向肥育猪（基本日粮添加0.18 mg Se / kg饲料）补充有机硒（0.3 mg Se / kg饲料）。进一步检查MLLT的pH（45分钟，24小时），颜色和电导率（24小时），滴水损失（48小时）和肌原纤维碎裂指数（MFI，5天），并估算化学成分（蛋白质，肌内脂肪）死后肌肉样品中硒的含量（荧光法）和抗氧化状态（抗坏血酸Fe〜（2+）刺激产生的氧化速率，丙二醛-MDA的产生）估计硒含量高出两倍以上。 （硒浓度高于正常对照组（0.377 vs. 0.922 mg / kg-MLLT和0.377 vs. 0.836 mg / kg-MSM）的猪的肌肉中的P <0.05}。氧化速率受到正向影响（P <0.05）补充硒：补充硒的猪MLLT有降低滴水损失的趋势，但差异不显着（P> 0.05）我们得出结论：基本日粮（0.18 mg）中添加有机有机硒（0.3 mg Se / kg日粮）。 Se / kg日粮）的肥育猪明显增加硒浓度，改善肌肉组织的抗氧化状态。

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