Historische Dramen I

Weise, Christian; Lindberg, John D.

doi:10.1515/9783110828498

Cited by 1 publication

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“…[18], TAKAHASHI [19], WEISE [20], OHYAMA et al [21], RUXTON et al [22], and WOOLFORD et al [23], who revealed that the presence of air in silage is without doubt detrimental to fermentation. It not only encourages the growth of undesirable aerobes, which leads to a depletion of substrate required by lactic acid bacteria, but delays the onset of the lactic fermentat.ion.…”

Section: Discussionmentioning

confidence: 99%

Effect of ensiling on the nutritive value of low quality roughage rice hulls. I. Microbial studies

Shawky

El-Sayed

Zaki

et al. 1990

Acta Biotechnologica

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Rice hulls were ensiled in laboratory silos in t w o separate experiments with the same treat. ments. I n the first, sealing was delayed for a period of three days. In the second experiment, silos were sealed immediately after filling. In each experiment, four treatments were applied, namely control, molasses 2% added, urea 0.5% added, and molasses 2% + urea 0.5% added.Lactobacilli, streptococci, and coliforms appear to form the main bulk of the flora characteristic of fresh rice hulls. while the lactic acid bacteria dominate at the commencement of the silage ripening. The characteristics of 30 representative pure strains of both lactic ncid and coliform bacteria isolated from rice hulls laboratory silage are described. On the basis of morphological, cultural, and biochemical characteristics, the isolated cultures were identified as ten strains of Lactobacillus, ten strains of Streptococcus, five strains of Klcbsiclla, and five strains of Escherichia. IntrodiictionOld oil paintings foiind in Egypt dating from the period 10oO to 1500 BC demonstrate that Ancient Egyptians were familiar with ensiling the whole-crop cereals. KIRSTELN [l], and SCHUKKING [2] revealed that ensilage was practiced around 3000 years ago. The first reference af the ensiling process as it is understood today was cited by WATSON and SMITH [3] in which ensilage of fresh grass in pits was described. Ensilage has become an increasingly important method of conservation in the past 50 years. The greater popularity of silage stems largely from: (a) the escalating cost of feed concentrates throughout the world, and (b) the development of a technology which enables material of a more predichble quality to be made than was possible previously. I n general, any material which is unstable in air and has, or is provided with, sufficient fermentable carbohydrate can be ensiled. I n Egypt, renewed efforts were made to establish the means for making consistently good quality silages, particularly from low qcality roughages, e.g., rice hulls. These efforts were prompted by the desire on the production of unconventional fodders for livestock to sttain self-sufficiency, presumably becsuse the conventional silages made from corn, grasses, legumes, etc. were considered insufficient. Approximately 200 thousand tons of rice hulls are produced annually in Egypt& Even though they contain enough cellulose and hemicellulose to make it a source of energy for the ruminants, they are inefficiently utilized by ruminants because of low nitrogen and high content and low digestibility of the fibrous fractions. This low di-3*

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Section: Discussionmentioning

confidence: 99%