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首页> 外文期刊>Mycotoxin Research >Humic substances failed to prevent the systemic absorption of deoxynivalenol (DON) and its adverse effects on piglets
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Humic substances failed to prevent the systemic absorption of deoxynivalenol (DON) and its adverse effects on piglets

机译：腐殖质未能阻止脱氧雪腐烯醇（DON）的全身吸收及其对仔猪的不利影响

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The aim of this study was to examine the effects of a control diet (CON, 0.25 mg DON/kg diet) or a Fusarium toxin-contaminated diet (FUS, 4.49 mg DON/kg diet) without and with humic substances (HS) (CON-HS and FUS-HS, 0.23 and 4.56 mg DON/kg diet, respectively) on piglets during a 5-week growth trial starting after weaning (6.7 ± 0.9 kg live weight, n = 20/group). Feed intake was significantly reduced by feeding the FUS containing diets by approximately 21% compared with the CON diet irrespective of HS supplementation. The decrease in live weight gain paralleled the feed intake depression and amounted to approximately 26%. Feeding the FUS diet was clearly reflected by the DON levels in blood. While only traces of DON with median concentrations of 3 ng/ml (2–5 ng/ml) and 2 ng/ml (0–3 ng/ml) were detected in piglets fed the CON and CON-HS diets, respectively, significantly higher levels of 22.5 ng/ml (7–30 ng/ml) and 23.5 ng/ml (15–32 ng/ml) were found in piglets fed the FUS and FUS-HS diet, respectively. The urinary excretion of DON and its metabolite de-epoxy-DON as percentage of DON intake was not significantly influenced by HS supplementation and amounted to 24.1 and 20.2% for groups FUS and FUS-HS, respectively. In conclusion, the tested HS preparation cannot be recommended as a DON inactivating feed supplement for pigs.
机译：这项研究的目的是研究对照饮食（CON，0.25 mg DON / kg饮食）或受镰刀菌毒素污染的饮食（FUS，4.49 mg DON / kg饮食）在没有和带有腐殖质（HS）的情况下的效果（在断奶后开始的5周生长试验中，仔猪的CON-HS和FUS-HS分别为0.23和4.56 mg DON / kg饲料（6.7±0.9 kg活重，n = 20 /组）。与CON日粮相比，无论是否补充HS，饲喂含FUS日粮的饲料摄入量均显着降低了约21％。活体重增加的减少与采食量的下降平行，约为26％。血液中的DON含量清楚地反映了喂养FUS饮食的情况。虽然在分别饲喂CON和CON-HS日粮的仔猪中仅检测到痕量的DON，其中位数浓度分别为3 ng / ml（2–5 ng / ml）和2 ng / ml（0–3 ng / ml）。喂FUS和FUS-HS日粮的仔猪分别发现较高的22.5 ng / ml（7–30 ng / ml）和23.5 ng / ml（15–32 ng / ml）。补充HS对DON的尿排泄及其代谢产物脱环氧DON的摄入百分比没有显着影响，FUS和FUS-HS组的尿排泄分别为24.1和20.2％。总之，不能将经过测试的HS制剂推荐用作猪的DON灭活饲料补充剂。

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