منابع مشابه
Nutritional interdependence among rumen bacteria during cellulose digestion in vitro.
A study has been made of the promoting effect of starch on cellulose digestion by mixed rumen bacteria in a cellulose-urea medium. Starch supplementation of the medium promoted the growth of bacteria that required neither amino acids (AA) nor branched-chain fatty acids (BrFA). The growth of these bacteria was followed by the growth of AA-dependent bacteria, AA- or BrFA-dependent bacteria, BrFA-...
متن کاملInfluence of rumen protozoa and bacteria upon cellulose digestion in vitro.
S TUDIES by Appleby et al. (1956), Gutierrez and tlungate (1957), Eadie et al. (1959) and Eadie and Hollson (1962) indicated that ciliate protozoa normally inhabiting the rumen exerted considerable influence upon end products of rumen fermentation and upon tureen bacterial populations. The full significance of protozoa to the nutrition of cattle and sheep is not clear. However, Christiansen et ...
متن کاملMicrobial digestion of hemicelluloses in the rumen.
The ruminant animal is dependent upon anaerobic microorganisms for the digestion of plant materials in the rumen. The resultant microbial cells and fermentation acids are primary nutrients for the animal. Polysaccharides, such as hemicelluloses, are only partially degraded because of the chemical complexities of plant materials and biochemical processes involved in degradation.
متن کاملSequence of events in the digestion of fresh legume leaves by rumen bacteria.
When fresh whole leaves of six different species of forage legumes were suspended in an artificial rumen medium and inoculated with rumen bacteria, bacterial adhesion and proliferation were noted at the stomata, and penetration of the stomate by these bacteria was documented by electron microscopy. The invading bacteria adhered to surfaces within the intercellular space of the leaf and produced...
متن کاملEffects of tallow and urea on in vitro rumen fermentation and nutrient digestion in sheep.
An in vitro study was conducted using a 4 • 2 • 2 factorial design with RAC (readily available carbohydrate) levels of 30, 40, 50 and 60%, tallow levels of 0 and 3%, and urea levels of 0 and 2%. Acetic and propionic acid production and ammonia disappearance increased as the level of RAC increased from 30 to 50%. Tallow reduced acetic acid production and increased the amount of propionic acid pr...
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ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 1983
ISSN: 0007-1145,1475-2662
DOI: 10.1079/bjn19830015