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首页> 外文期刊>Pakistan journal of nutrition: PJN >Effects of Selected Lactobacillus plantarum as Probiotic on In vitro Ruminal Fermentation and Microbial Population
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Effects of Selected Lactobacillus plantarum as Probiotic on In vitro Ruminal Fermentation and Microbial Population

机译：精选植物乳杆菌作为益生菌对体外瘤胃发酵和微生物种群的影响

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Background and Objective: Probiotics are widely used in ruminant production, but information about the potential of Lactobacillus plantarum ( L. plantarum ) as a probiotic for ruminants is still limited. The aim of this research was to select L. plantarum strains as a probiotic for ruminants and to determine their effect on the rumen fermentation system. Materials and Methods: The first experiment was conducted using a randomized block design to select 14 strains of L. plantarum isolated from rumen cattle. The second experiment was arranged in a completely randomized design using two selected L. plantarum strains to determine their effects as a probiotic on rumen fermentation. The substrates used for in vitro fermentation were napier grass ( Pennisetum purpureum ) and concentrate in a 70:30 ratio. Results: From experiment 1, L. plantarum U32 was selected, because it produced low methane/total gas (27.39%) and strain U40 was selected because it had the highest dry matter and organic matter rumen disappearance (56.45 and 56.44%). In experiment 2, the addition of L. plantarum U32 and U40 as probiotics increased propionic acid and decreased acetic production (pConclusion: The addition of L. plantarum strains U32 and U40 as probiotics had beneficial effects for rumen fermentation due to increased propionic acid and decreased methane production.
机译：背景与目的：益生菌被广泛用于反刍动物的生产，但是关于植物乳杆菌（L. plantarum）作为反刍动物益生菌的潜力的信息仍然有限。这项研究的目的是选择植物乳杆菌作为反刍动物益生菌，并确定它们对瘤胃发酵系统的影响。材料和方法：第一个实验使用随机区组设计进行，以选择从瘤胃牛分离的14株植物乳杆菌。使用两个选定的植物乳杆菌菌株以完全随机的设计安排第二个实验，以确定它们作为益生菌对瘤胃发酵的影响。用于体外发酵的底物是萘草（Pennisetum purpureum）并以70:30的比例浓缩。结果：从实验1中，选择了L. plantarum U32，因为它产生的甲烷/总气体较低（27.39％），而选择菌株U40是因为它具有最高的干物质和有机物质瘤胃消失率（56.45和56.44％）。在实验2中，添加植物乳杆菌U32和U40作为益生菌增加了丙酸并降低了乙酸的产生（p结论：由于添加丙酸和减少了乳酸杆菌L32和U40作为益生菌，对瘤胃发酵具有有益的作用甲烷生产。

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