This in vitro study aimed at estimating the disappearance rates of 14 terpenes and terpenoids after 24-h incubation with mixed bacteria from caprine rumens. These compounds comprised nine monoterpene hydrocarbons (δ-3-carene, p-cymene, β-myrcene, (E)- and (Z)-β-ocimene, α-phellandrene, α-terpinene, γ-terpinene and α-terpinolene), four oxygenated monoterpenes ((E)- and (Z)-linalool oxide, 4-terp...

The dominant rumen bacteria in high-arctic Svalbard reindeer were characterized, their population densities were estimated, and ruminal pH was determined in summer, when food quality and availability are good, and in winter, when they are poor. In summer the total cultured viable population density was (2.09 +/- 1.26) X 10(10) cells ml-1, whereas in winter it was (0.36 +/- 0.29) X 10(10) cells ...

Cicer milkvetch (Astragalus cicer L.) is a perennial legume used as a pasture or rangeland plant for ruminants. A study was undertaken to determine whether reported variations in its ruminal digestibility may be related to the presence of an antinutritive material. In vitro fermentation of neutral detergent fiber (NDF) of cicer milkvetch by mixed rumen microflora was poorer than was the ferment...

The gastrointestinal tract (GIT) of ruminants is the main reservoir of enterohemorrhagic Escherichia coli, which is responsible for food-borne infections in humans that can lead to severe kidney disease. Characterization of biotic and abiotic factors that influence the carriage of these pathogens by the ruminant would help in the development of ecological strategies to reduce their survival in ...

Five strains of anaerobic fungi isolated from the faeces of wild (hog deer, Cervus porcinus; blackbuck, Antelope cervicapra; spotted deer, Axis axis; nilgai, Baselophus tragocamelus) and rumen liquor of domestic (sheep, Ovies aries) ruminants showing high fibrolytic enzyme producing ability were added to mixed rumen microflora of buffalo to study their effect on the digestibility of lignocellul...

At the 1957 Conference on Rumen Function, Barrentine et al. (1958) and Emery et al. (1958) presented reports supporting the use of penicillin for the control of bloat in cattle. At the same conference, Johnson et al. (1958) and Smith and Emery (1958) reported that the administration of 50 to 100 mg of penicillin daily reduced the incidence of pasture bloat, but this control was not effective af...

The review article provides up-to-date scientific information on the characteristics, classification and mechanisms of biological action pro-, pre- synbiotics in digestive tract ruminants. literature sources recent years influence synbiotic supplements (when adding them to diets ruminants) metabolic processes body, intensity growth, development quality products obtained from domestic ruminant a...

With an increased knowledge of the mechanism action Fusarium mycotoxins, concept that these substances are deleterious only for monogastric species is obsolete. Indeed, most mycotoxins can be converted into less toxic compounds by rumen microflora from healthy animals. However, mycotoxin absorption and its conversion to more metabolites, as well their impact on immune response subsequently anim...