文摘
监测的微生物菌群的演化对待strawA
作者(年代):Y。Chbab,。Echchelh, M。Aouane,。Chaouch, M。Jadal, M.Ouhssine使用尿素治疗稻草是一个有趣的替代,特别是在发展中国家。一方面,其有效性取决于ureolysis的强度,另一方面,产生的氨的影响对稻草的构成和存在的微生物菌群。这项工作的目的是研究氨的影响来自FMAT的进化体活动,总粪大肠杆菌群、真菌、酵母和乳酸的细菌。单独和这两篇文章(秸秆+尿素(U)和稻草+ ureamolasses)。条件的论文进行湿度在60%和70%之间,不同的温度在30天内和20和22°C。获得结果遇到一个空白(秸秆+水)。因此,φ9.2的中值为所有文章被尿素(U)。它是essaywithmolasses 8.5。的pHof thewitnesswas只有5.5。FMAT丰富证人。它到达高水平(1.7.107终极格斗冠军赛/ g)对6.102终极格斗冠军赛/ g糖蜜的文章。 The lactic microbes were present in the essay withmolasseswith an abundance of 2.1.101 ufc/g. Theyweremore abundant in the witness (1.7.104 ufc/g). The same thingwas observed with yeasts. In fact, at the level of the mix straw + urea + molasses, the average of the population of yeast is 4.9.101 ufc/g. In the witness it reaches 4.104 ufc/g. These results can be explained by the influence of the high pH values in the essays with urea. The pH acts on the bacterial metabolism in general and on the ureolytic activity (hydrolysis of urea) particularly. The pH and/ or the high concentration of ammonia formed can explain the statements stopped at the level of the growth of the studied microbiological floras.
