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首页> 外文期刊>Czech Journal of Animal Science >The effect of biological preservatives, treatment and different levels of dry biomass on proteolysis and content of biogenic amines in alfalfa silage
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The effect of biological preservatives, treatment and different levels of dry biomass on proteolysis and content of biogenic amines in alfalfa silage

机译：生物防腐剂，处理和不同水平的干生物质对苜蓿青贮饲料中蛋白水解和生物胺含量的影响

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摘要

The effect of preservatives (formic acid and Bactozyme) and chops length on proteolysis and content of biogenic amines was studied in alfalfa silages with different dry matter contents (25%, 35%, 45% and 55%). Greatest changes in the parameters under study were observed in alfalfa silage with 25% dry matter content. The effect on the degree of proteolysis and content of biogenic amines decreased with increasing dry matter contents. While proteolysis was inhibited by short chops (6 mm) in alfalfa silages, the content of biogenic amines in control variant and in Bactozyme-treated variant increased. Average content of biogenic amines was at the same evel in the variant treated with formic acid, but their content was lower (185.0 mg/kg) at 25% dry matter in alfalfa silage with short chops in comparison with silage made from long chops (346.0 mg/kg). The content of biogenic amines decreased in relation to increasing dry matter contents and type of preservative. Tyramine accounted for the highest proportion in the total content of biogenic amines in alfalfa silage (ca. 65%).
机译：在不同干物质含量（25％，35％，45％和55％）的紫花苜蓿青贮饲料中，研究了防腐剂（甲酸和细菌酶）和排骨长度对蛋白水解和生物胺含量的影响。在干物质含量为25％的苜蓿青贮饲料中观察到的参数变化最大。随着干物质含量的增加，对蛋白水解度和生物胺含量的影响降低。虽然苜蓿青贮饲料中的短切屑（6毫米）抑制了蛋白水解，但对照变体和经细菌酶处理的变体中生物胺的含量增加了。在用甲酸处理的变体中，生物胺的平均含量处于相同的水平，但与短排制成的青贮饲料相比，短排成的苜蓿青贮饲料中生物胺的含量较低（185.0 mg / kg），干物质含量为25％时较低（346.0）毫克/公斤）。生物胺的含量与干物质含量和防腐剂类型的增加有关。紫花苜蓿占苜蓿青贮饲料中生物胺总含量的最高比例（约65％）。

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