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首页> 外文期刊>Molecular Nutrition and Food Research >Effects of the level of feed intake and ergot contaminated concentrate on ergot alkaloid metabolism and carry over into milk
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Effects of the level of feed intake and ergot contaminated concentrate on ergot alkaloid metabolism and carry over into milk

机译：饲料摄入量和麦角污染浓缩物水平对麦角生物碱代谢和结转到奶中的影响

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摘要

The aim of the present study was to examine the effects of ergot contaminated concentrate at differing levels of feed intake on ergot alkaloid metabolism and carry over into milk. Twelve double fistulated (in the rumen and the proximal duodenum) Holstein Friesian cows were fed either the control diet (on a dry matter (DM) base: 60% maize silage, 40% concentrate) or the contaminated diet (concentrate contained 2.25% ergot, which caused an alkaloid concentration of the daily ration between 504.9 and 619.5 og/kg DM) over a period of 4 weeks. Daily feed amounts were adjusted to the current performance which resulted in a dry matter intake (DMI) variation between 6.0 and 18.5 kg/day. The actual alkaloid exposure varied between 4.1 and 16.3 og/kg body weight when the ergot contaminated concentrate was fed. Approximately 67% of the alkaloids fed were recovered in the duodenal ingesta, and [thick similar]24% were excreted with the faeces. No alkaloid residues could be detected in the blood or milk samples.
机译：本研究的目的是研究不同麦芽摄入量下麦角污染的浓缩物对麦角生物碱代谢的影响，并结转到牛奶中。给十二头双f（瘤胃和十二指肠近端）的荷斯坦黑白花奶牛喂饲对照饲料（以干物质（DM）为基础：60％玉米青贮饲料，40％精矿）或受污染的饲料（精矿中含有2.25％麦角） ，在4周内导致生物碱的日粮浓度在504.9至619.5 og / kg DM之间。将每日饲料量调整至当前水平，这导致干物质摄入量（DMI）在6.0至18.5千克/天之间变化。当饲喂麦角污染的浓缩物时，实际生物碱暴露量在4.1至16.3 og / kg体重之间变化。喂养的生物碱中约有67％在十二指肠摄取物中被回收，[厚相似的] 24％通过粪便排泄。血液或牛奶样品中未检测到生物碱残留。

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