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首页> 外文期刊>Animal Science Journal >Identification of bacteria in total mixed ration silage produced with and without crop silage as an ingredient
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Identification of bacteria in total mixed ration silage produced with and without crop silage as an ingredient

机译：鉴定以或不以农作物青贮饲料为成分生产的总混合日粮青贮饲料中的细菌

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As a forage source for total mixed ration (TMR) silage production, locally produced crop silage is now used in addition to imported hay. This type of TMR ensiling is regarded as a two-step fermentation process; hence, a survey was carried out to determine whether the bacteria in crop silage affect the subsequent TMR ensiling. Fermentation product contents and bacterial community were determined for TMR silage and its ingredient silages collected in August, October and November. August product contained corn, sorghum and Italian ryegrass silages, October product had wheat silage exclusively and November product did not include any crop silages. Acetic acid, lactic acid, 2,3-butanediol and ethanol were predominant fermentation products in corn, sorghum, Italian ryegrass and wheat silages, respectively. Robust lactic acid fermentation was seen in TMR silage, even if acetate-type and alcohol-type silages were mixed as ingredients. The finding that bacterial community of the TMR silage appeared unrelated to those of ingredient silage supported this. Silages of various fermentation types can therefore be formulated without interfering with lactate-type fermentation in TMR silage.
机译：作为总混合日粮（TMR）青贮饲料生产的饲料来源，除进口干草外，现在还使用本地生产的农作物青贮饲料。这种类型的TMR贴装被认为是两步发酵过程。因此，进行了一项调查以确定农作物青贮饲料中的细菌是否影响随后的TMR贮藏。确定了8月，10月和11月收集的TMR青贮饲料及其成分青贮饲料的发酵产物含量和细菌群落。 8月产品包含玉米，高粱和意大利黑麦草青贮饲料，10月产品仅包含小麦青贮饲料，11月产品不包含任何农作物青贮饲料。乙酸，乳酸，2,3-丁二醇和乙醇分别是玉米，高粱，意大利黑麦草和小麦青贮饲料中的主要发酵产物。即使将乙酸型和酒精型青贮饲料作为成分混合，在TMR青贮饲料中也可以看到强劲的乳酸发酵。 TMR青贮饲料细菌群落似乎与成分青贮饲料细菌群落无关的发现支持了这一点。因此，可以配制各种发酵类型的青贮饲料，而不会干扰TMR青贮饲料中的乳酸型发酵。

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