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首页> 外文会议>General Meeting of the European Grassland Federation >Preservatives and machines with knives improve the silage quality in round bales
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Preservatives and machines with knives improve the silage quality in round bales

机译：刀具的防腐剂和机器可提高圆形包装中的青贮质量

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摘要

In a dairy extension project aimed at improved silage quality more than 1100 silage samples from the harvests 2001-2006 were tested. Almost 600 farmers contributed samples, each farmer received a free analysis if details about the harvesting and storing technique accompanied the fresh silage. 45% of the silage samples came from round bales. Signs of spore-forming Clostridia bacteria as butyric acid were found in 45% of the samples cut using machines without knives and made without use of preservatives. In silage from machines with knives but without use of preservatives the frequency of Clostridia fermentation was reduced by one-third. In silage from machines with knives and use of preservatives the frequency with butyric acid was reduced by anotherthird. Increased frequencies of butyric acid fermentation with increasing time between baling and wrapping with plastic were also found, especially if no preservatives were used, and with increasing clover content and with decreasing DM. Butyric acid was often accompanied by increased crude protein content bound to acid detergent fibres, indicating heating processes before anaerobic conditions had been established.
机译：在旨在改善青贮饲料质量的乳制品延期项目中，测试了来自收获2001-2006的1100多个青贮样品。近600名农民贡献了样本，如果有关收获和储存技术的细节伴随着新鲜的青贮饲料，则每个农民都收到了免费分析。 45％的青贮样品来自圆形包。孢子形成梭菌细菌的迹象是在45％的样品中发现使用没有刀具的机器切割的样品中的45％，而无需使用防腐剂。在刀具的机器中，无需使用防腐剂，蛋白酶发酵频率减少三分之一。在刀具和防腐剂的机器中，用丁酸的频率缩小彼此的频率缩短。还发现了丁酸发酵频率随着塑料的含量增加，特别是如果没有使用防腐剂，并且增加三叶草含量和降低DM。丁酸通常伴随着增加对酸性洗涤剂纤维的粗蛋白质含量增加，表明在建立了厌氧条件前的加热过程。

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