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At least 1,351 records · Page 75Linked to original sources
PubMed1990

Epidemiological studies on the occurrence of Listeria monocytogenes in the feces of dairy cattle.

Seasonal variation in the fecal shedding of Listeria spp. in dairy cattle was examined by collecting a total of 3,878 fecal samples during a period of two years. The prevalences of Listeria spp. and L. monocytogenes were higher during the indoor season (12.7% and 9.2%, respectively) than in samples collected from the animals on pasture (5.3% and 3.1%, respectively). The highest frequencies of Listeria spp. (19.4%) and L. monocytogenes (16.1%) were detected in December. Listeriae were isolated from at least one of the dairy cows from 45.8% of the 249 herds examined. 2.9% of the 314 milk samples collected from the farm bulk tanks on 80 dairy farms on four different occasions yielded L. monocytogenes. The seasonal occurrence of these bacteria in milk reflected the frequencies of Listeria in the fecal material but not those in the main roughage used; grass silage and pasture grass. Fecal material is considered to be a potential source of contamination of raw milk by L. monocytogenes. Investigation of the numbers of viable Listeria organisms in different animal fodders is considered essential in further epidemiological studies of these bacteria.

Animals↗
PubMed1993

Investigations on the antibacterial effect of conifer needle oils on bacteria isolated from the feces of captive Capercaillies (Tetrao urogallus L., 1758).

In winter, free-living Capercaillies feed almost exclusively upon needles of various conifer species. An important part of the energy and protein requirements of captive Capercaillies, however, is supplied by food rich in starch and proteins. The fecal flora of captive Capercaillies is considerably different from the flora of free-living Capercaillies. Bacterial diseases are frequent in captivity. The aim of the present study is to determine whether the essential oils from conifer needles possess antibacterial properties against several bacteria, some of which are facultatively pathogenic for Capercaillies. Needles of Pinus sylvestris contain few tannins, which could be a reason for the Capercaillies' preference for these needles. The needles of Abies alba contain high amounts of tannins and essential oils, which could explain the refusal of Capercaillies to eat these needles. The antibacterial effect of commercially available essential oils on the bacteria is investigated with a filter paper disc method and in a liquid medium. The essential oils possess a bacteriostatic or a bactericidal effect against some of the tested bacteria. Feeding on natural forage plants may help prevent the colonization of the intestines by facultatively pathogenic bacteria. The authors discuss why Capercaillies, especially young birds that are to be released, should be fed with natural forage plants.

Animal Feed↗
PubMed2002

Helicobacter muricola sp. nov., a novel Helicobacter species isolated from the ceca and feces of Korean wild mouse (Mus musculus molossinus).

A slowly growing microaerophilic Helicobacter strain was isolated from the ceca and fecal pellets of Korean wild mice (Mus musculus molossinus). This bacterial strain possessed a pair of nonsheathed bipolar flagella, was positive for urease, catalase and oxidase, and reduced nitrate to nitrite. It proved susceptible to nalidixic acid and resistant to cephalodine, and did not hydrolyze hippurate. On the basis of phenotypic characteristics and 16S rRNA gene sequence analysis, the isolate represents a new species of the genus Helicobacter, for which the name Helicobacter muricola sp. nov. is proposed; the type strain of the new species is w-06T.

Animals↗
PubMed1985

Evaluation of two commercial kits for rapid detection of human rotavirus in feces: Rotalex, a latex agglutination test and Rotavirus ELISA Kit.

96 fecal specimens from children with symptoms of gastroenteritis were tested with a latex agglutination test (Rotalex, Orion Diagnostica, Finland) and an enzyme-linked immunosorbent test (Rotavirus ELISA Kit, Dakopatts, Copenhagen, Denmark). Using the ELISA method as reference, the latex agglutination (LX) came out with three non-specific and two false negative results. The LX test was found to be a rapid, practical and non-expensive choice for a laboratory examinating few samples daily.

Agglutination Tests↗