An outbreak of footrot has occurred in Debrezeit swine farm that is located 44 km south east of the capital. Among 24 pigs, 75% showed lameness, hot, painful and swollen feet, hemorrhagic bruising of the coronary band, heel erosion, sole ulcers and separation of skin from hoof on hind limbs. Bacteriological examination of the specimen from the affected limbs has shown the involvement of Staphylococcus, Streptococcus and Dichelobacter nodosus. The overt clinical lameness and inability to stand or mount can cause reduced reproductive performance. This preliminary finding thus warrants further epidemiological investigation.
Animals ; Dichelobacter nodosus/isolation&purification ; Disease Outbreaks/*veterinary ; Ethiopia/epidemiology ; Foot Rot/epidemiology/*microbiology ; Gram-Negative Bacterial Infections/epidemiology/microbiology/*veterinary ; Housing, Animal ; Lameness, Animal/epidemiology/*microbiology ; Staphylococcus/isolation&purification ; Streptococcus/isolation&purification ; Swine

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 ; Animal Feed ; Animals ; Anti-Bacterial Agents/*therapeutic use ; Antibodies, Bacterial/blood ; Enteritis/epidemiology/prevention&control/*veterinary ; Fluorescent Antibody Technique, Indirect/veterinary ; Gram-Negative Bacterial Infections/prevention&control/*veterinary ; Korea/epidemiology ; *Lawsonia Bacteria/drug effects/growth&development/immunology ; Seroepidemiologic Studies ; Swine ; Swine Diseases/*epidemiology/microbiology/prevention&control ; Tylosin/*therapeutic use