| Records |
| Author |
Hughes, K.L.; Sulaiman, I. |
| Title |
The ecology of Rhodococcus equi and physicochemical influences on growth |
Type |
Journal Article |
| Year |
1987 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
| Volume |
14 |
Issue |
3 |
Pages |
241-250 |
| Keywords |
Animals; Feces/microbiology; Horses; Hydrogen-Ion Concentration; Rhodococcus/*growth & development; *Soil Microbiology; Temperature |
| Abstract |
Growth of Rhodococcus equi was studied in vitro. Optimal growth occurred under aerobic conditions between pH 7.0 and 8.5, at 30 degrees C. R. equi survived better in a neutral soil (pH 7.3) than it did in two acid soils (pH less than 5.5). It grew substantially better in soils enriched with faeces than in soils alone. Simple organic acids in horse dung, especially acetate and propionate, appear to be important in supporting growth of R. equi in the environment. The ecology of R. equi can be best explained by an environmental cycle allowing its proliferation in dung, influenced by management, grazing behaviour and prevailing climatic conditions. Preventive measures should be aimed at reducing or avoiding focal areas of faecal contamination in the environment. |
| Address |
School of Veterinary Science, University of Melbourne, Parkville, Vic., Australia |
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| Language |
English |
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| ISSN |
0378-1135 |
ISBN |
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| Notes |
PMID:3672866 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2678 |
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| Author |
Takai, S.; Fujimori, T.; Katsuzaki, K.; Tsubaki, S. |
| Title |
Ecology of Rhodococcus equi in horses and their environment on horse-breeding farms |
Type |
Journal Article |
| Year |
1987 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
| Volume |
14 |
Issue |
3 |
Pages |
233-239 |
| Keywords |
Actinomycetales Infections/*veterinary; Animals; Animals, Newborn/*microbiology; *Environmental Microbiology; Feces/microbiology; Female; Horse Diseases/*microbiology; Horses/*microbiology; Rhodococcus/*isolation & purification |
| Abstract |
Quantitative culture of R. equi in the feces of dams and foals, in the air of the stalls and in the soil of the paddocks was carried out on three horse-breeding farms during the foaling season. The isolation rates of R. equi from the feces of dams from the 3 farms suddenly increased to approximately 80% at the end of March, when the snow in the paddocks finished melting, and remained at that level during April and May. The mean number of R. equi and the isolation rate of R. equi from the feces of dams on the farms were investigated for 5 weeks before and 5 weeks after delivery. During the 10 weeks, there were no differences in the isolation rate or in the mean number of R. equi from the feces of dams. R. equi was first isolated from the feces of the foals born in February and the middle of March at 3-4 weeks of age, on the other hand, it was first isolated from the feces of foals born in the end of March and April at 1-2 weeks of age. The number of R. equi in the soil collected from the paddocks used by dams during the winter was approximately 10(2)-10(4) g-1 of soil during the experiment. R. equi was isolated from the air in the stalls at the end of March and the number of R. equi in the air increased particularly on dry and windy days.(ABSTRACT TRUNCATED AT 250 WORDS) |
| Address |
Department of Animal Hygiene, School of Veterinary Medicine and Animal Science, Kitasato University, Aomori, Japan |
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English |
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Edition |
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| ISSN |
0378-1135 |
ISBN |
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| Notes |
PMID:3672865 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2679 |
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| Author |
Polley, L. |
| Title |
Strongylid parasites of horses: experimental ecology of the free-living stages on the Canadian prairie |
Type |
Journal Article |
| Year |
1986 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
| Volume |
47 |
Issue |
8 |
Pages |
1686-1693 |
| Keywords |
Animals; Canada; Ecology; Feces; Female; Horse Diseases/*epidemiology/parasitology; Horses; Larva; Ovum/cytology; Seasons; Strongyloides/isolation & purification; Strongyloidiasis/epidemiology/*veterinary |
| Abstract |
Each month for a 1-year period (October through September), equine fecal masses containing eggs of strongylid nematodes were placed outdoors on small grass plots in Saskatchewan, Canada. Thereafter, feces and grass from the plots were sampled after intervals of 1 week or longer, and the strongylid eggs and larvae recovered were counted. These observations were made over a 2-year period. Development of eggs to infective larvae occurred in all experiments, except those established in October, December, and January. Infective larvae from experiments set up in April through September survived that winter. During the summer, there was a gradual build up of infective larvae in the fecal masses, which reached a peak in August and September and then decreased into the winter. These results are discussed in the context of the control of strongylid parasites of horses on the Canadian prairie and in other areas of the world with a similar climate and similar horse management practices. |
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English |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0002-9645 |
ISBN |
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| Notes |
PMID:3752676 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2682 |
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| Author |
Takai, S.; Narita, K.; Ando, K.; Tsubaki, S. |
| Title |
Ecology of Rhodococcus (Corynebacterium) equi in soil on a horse-breeding farm |
Type |
Journal Article |
| Year |
1986 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
| Volume |
12 |
Issue |
2 |
Pages |
169-177 |
| Keywords |
Actinomycetales/classification/*growth & development; Animals; Corynebacterium/classification/*growth & development; Feces/microbiology; Female; Horses; Serotyping; *Soil Microbiology |
| Abstract |
The ecology of Rhodococcus (Corynebacterium) equi in soil was studied on a horse-breeding farm. R. equi was cultured from soil at a depth of 0, 10, and 20 cm on the six sites of the farm at monthly intervals for 10 months from March to December of 1983. The highest numbers of R. equi were found in the surface soil. The mean number of bacteria in soil samples at every depth increased remarkably from 0 or 10(2) to 10(4) colony-forming units (CFU) g-1 of soil in the middle of April, and later decreased gradually. R. equi inoculated into six soil exudate broths prepared from surface soils at separate sites yielded suspensions with different optical densities, indicating differences in growth. The distribution of serotypes in the soil was similar to that in the horses on the farm. These findings indicated that R. equi could multiply in the soil and flourish in the cycle existing between horses and their soil environment. |
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English |
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Edition |
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| ISSN |
0378-1135 |
ISBN |
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Conference |
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| Notes |
PMID:3750818 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2683 |
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| Author |
Barton, M.D.; Hughes, K.L. |
| Title |
Ecology of Rhodococcus equi |
Type |
Journal Article |
| Year |
1984 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
| Volume |
9 |
Issue |
1 |
Pages |
65-76 |
| Keywords |
Actinomycetales/growth & development/immunology/*isolation & purification; Animal Husbandry; Animals; Antigens, Bacterial/immunology; Artiodactyla/*microbiology; Australia; Digestive System/microbiology; Ecology; Feces/*microbiology; Horses/*microbiology; Hypersensitivity, Delayed; Rabbits/microbiology; *Soil Microbiology |
| Abstract |
A selective broth enrichment technique was used to study the distribution of Rhodococcus equi in soil and grazing animals. Rhodococcus equi was isolated from 54% of soils examined and from the gut contents, rectal faeces and dung of all grazing herbivorous species examined. Rhodococcus equi was not isolated from the faeces or dung of penned animals which did not have access to grazing. The isolation rate from dung was much higher than from other samples and this was found to be due to the ability of R. equi to multiply more readily in dung. Delayed hypersensitivity tests were carried out on horses, sheep and cattle, but only horses reacted significantly. The physiological characteristics of R. equi and the nature of its distribution in the environment suggested that R. equi is a soil organism. |
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English |
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0378-1135 |
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| Notes |
PMID:6719819 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2688 |
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| Author |
Pitchford, R.J.; Visser, P.S.; du Toit, J.F.; de Pienaar, U.V.; Young, E. |
| Title |
Observations on the ecology of Schistosoma mattheei Veglia & Le Roux, 1929, in portion of the Kruger National Park and surrounding area using a new quantitative technique for egg output |
Type |
Journal Article |
| Year |
1973 |
Publication |
Journal of the South African Veterinary Association |
Abbreviated Journal |
J S Afr Vet Assoc |
| Volume |
44 |
Issue |
4 |
Pages |
405-420 |
| Keywords |
Animals; Artiodactyla; Buffaloes; Cattle; Cattle Diseases/epidemiology; Dog Diseases/epidemiology; Dogs; Feces; Goats; Haplorhini; Horse Diseases/epidemiology; Horses; Humans; Methods; Monkey Diseases/epidemiology; Papio; Parasite Egg Count; Schistosomiasis/epidemiology/*veterinary; Sheep; Sheep Diseases/epidemiology; South Africa; Swine; Swine Diseases/epidemiology |
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English |
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Series Issue |
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Edition |
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| ISSN |
1019-9128 |
ISBN |
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| Notes |
PMID:4212207 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2711 |
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| Author |
Wilhelm, W.E.; Anderson, J.H. |
| Title |
Vahlkampfia lobospinosa (Craig. 1912) Craig. 1913: rediscovery of a coprozoic ameba |
Type |
Journal Article |
| Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
| Volume |
57 |
Issue |
6 |
Pages |
1378-1379 |
| Keywords |
Animals; Cattle; Ecology; Feces/microbiology; Horse Diseases/epidemiology; Horses; Protozoan Infections/epidemiology; *Protozoan Infections, Animal; Sarcodina/*classification/growth & development; Swine; Swine Diseases/epidemiology; Tennessee |
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English |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0022-3395 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:5157177 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2724 |
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| Author |
Malek, E.A. |
| Title |
The life cycle of Gastrodiscus aegyptiacus (Cobbold, 1876) Looss, 1896 (Trematoda: Paramphistomatidae: Gastrodiscinae) |
Type |
Journal Article |
| Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
| Volume |
57 |
Issue |
5 |
Pages |
975-979 |
| Keywords |
Animals; Bulinus; *Disease Vectors; Ecology; Feces; Female; Horse Diseases/*etiology; Horses; Metamorphosis, Biological; Ovum; Parasite Egg Count; Perissodactyla; Sudan; Trematoda/anatomy & histology/growth & development; Trematode Infections/etiology/*veterinary |
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English |
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Series Issue |
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Edition |
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| ISSN |
0022-3395 |
ISBN |
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Conference |
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| Notes |
PMID:5167379 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2726 |
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| Author |
Ogbourne, C.P. |
| Title |
Variations in the fecundity of strongylid worms of the horse |
Type |
Journal Article |
| Year |
1971 |
Publication |
Parasitology |
Abbreviated Journal |
Parasitology |
| Volume |
63 |
Issue |
2 |
Pages |
289-298 |
| Keywords |
Animals; Animals, Newborn; Ecology; Feces; Female; Horses; Larva/growth & development; Male; Ovum; Parasite Egg Count; Reproduction; Seasons; Strongyle Infections, Equine/*etiology; Strongyloides/*growth & development; Time Factors |
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English |
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Series Issue |
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Edition |
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0031-1820 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:5129804 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2727 |
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| Author |
Manning, G.S.; Ratanarat, C. |
| Title |
Fasciolopsis buski (Lankester, 1857) in Thailand |
Type |
Journal Article |
| Year |
1970 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
| Volume |
19 |
Issue |
4 |
Pages |
613-619 |
| Keywords |
Adolescent; Adult; Aged; Animals; Buffaloes; Cattle; Child; Child, Preschool; *Disease Reservoirs; Dogs; Ecology; *Fasciolidae; Feces; Female; Health Surveys; Horses; Humans; Infant; Infant, Newborn; Male; Middle Aged; *Plants, Edible; Sex Factors; *Snails; Swine; Thailand; Trematode Infections/*epidemiology |
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English |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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0002-9637 |
ISBN |
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| Notes |
PMID:5425498 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2734 |
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