1.Etiologic and epidemiologic analysis of bacterial infectious upper respiratory disease in Thoroughbred horses at the Seoul Race Park.
Seung Ho RYU ; Hye Cheong KOO ; Young Woo LEE ; Yong Ho PARK ; Chang Woo LEE
Journal of Veterinary Science 2011;12(2):195-197
Infectious upper respiratory disease (IURD) of Thoroughbred racehorses has been a frequent problem (29.6% of incidence) at the Seoul Race Park (Korea). Risk factors for IURD include the season with a high transfer rate (summer and fall), the stabling period (< or = 3 months), and age (2 to 3 years old), suggesting that the movement and new environment may have depressed the immune system of the horses and decreased their ability to respond properly to pathogens. The bacterial strains (n = 98) isolated from IURD horses included Pseudomonas spp., Escherichia coli, Staphylococcus spp., Streptococcus equi subsp. equi and zooepidemicus.
Animals
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Bacteria/*isolation & purification
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Bacterial Infections/epidemiology/immunology/microbiology/*veterinary
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Horse Diseases/epidemiology/immunology/*microbiology
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Horses
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Incidence
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Microbial Sensitivity Tests
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Republic of Korea/epidemiology
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Respiratory Tract Infections/epidemiology/immunology/microbiology/*veterinary
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Risk Factors
2.Prevalence of porcine proliferative enteropathy and its control with tylosin in Korea.
Sang Won LEE ; Tae Jong KIM ; Seung Yong PARK ; Chang Sun SONG ; Hyung Kwan CHANG ; Jae Kil YEH ; Hye In PARK ; Joong Bok LEE
Journal of Veterinary Science 2001;2(3):209-212
Porcine proliferative enteropathy(PPE) is an enteric disease been caused by Lawsonia intracellularis. It has become one of the critical problems in the pig industry. To investigate the prevalence of PPE in Korea, serum samples of 828 pigs from 65 herds were tested using indirect immunofluorescence antibody technique(IFA). The infection rate in individual pigs varied from 44 to 69%, whereas 100% in pig farms. The infection frequency was 57, 44.9, and 59.4% according to age respectively. Administration of tylosin in feed at a concentration of 110 ppm for 14 days reduced the infection rate of the farms. These data indicated that the high prevalence of PPE may be controlled by tylosin.
Administration, Oral
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Animal Feed
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Animals
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Anti-Bacterial Agents/*therapeutic use
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Antibodies, Bacterial/blood
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Enteritis/epidemiology/prevention&control/*veterinary
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Fluorescent Antibody Technique, Indirect/veterinary
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Gram-Negative Bacterial Infections/prevention&control/*veterinary
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Korea/epidemiology
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*Lawsonia Bacteria/drug effects/growth&development/immunology
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Seroepidemiologic Studies
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Swine
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Swine Diseases/*epidemiology/microbiology/prevention&control
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Tylosin/*therapeutic use