A survey of the biting midges of the Genus Culicoides was conducted by a joint effort of numerous U.S. and Korean personnel throughout South Korea for seven years from 1965 through 1973 (except 1968, 1971) using New Jersey light traps set up at fifty-nine (59) different locations, to find out the seasonal succession and geographical distribution of the said insects both on an individual species basis and as a whole, and to evaluate the medical significance and epidemiology of these insects. This provides some of the basic knowledge needed for prevention of filarial and virus transmission of diseases owing to these insects. As a result the following results were obtained: Sixteen (16) species hitherto unrecorded were added to the fauna of biting midges known from South Korea. Together with the already recorded fourteen (14) species, this makes the total number of species of these insects in South Korea thirty (30).Through the monthly tabulation of the collected specimens it was possible to find out the general seasonal succession of these insects as well as their sex ratio. Based on the data obtained the geographical distributions of the biting midges of the Genus Culicoides so far recorded in Korea were classified into the following four (4) types: The species which are very widely spread throughout south Korea. The species which are spread in central South Korea and supposed to occur in North Korea. The species which were collected from coastal areas and southern island. The species which were collected from Cheju-do.
parasitology-arthropoda ; midge ; epidemiology ; Culicoides arakawae ; Culicoides circumscriptus ; Culicoides dendrophilus ; Culicoides erairai ; Culicoides homotomus ; Culicoides japonicus ; Culicoides laciocola ; Culicoides nagahanai ; Culicoides nipponense ; Culicoides odibilis ; Culicoides ponkikiri ; Culicoides pulicaris ; Culicoides schultzei ; Culicoides sigaensis ; Culicoides sinanoensis ; Culicoides toyamaruae ; Culicoides sp. ; Culicoides amamiensis ohmorii ; Culicoides clavipalpis ; Culicoides dubius ; Culicoides koreensis ; Culicoides matsuzawai ; Culicoides obsoletus ; Culicoides odiatus ; Culicoides okumensis ; Culicoides omogensis ; Culicoides pictimargo ; Culicoides miharai ; Culicoides saninense ; Culicoides longidens ; Culicoides amamiensis amamiensis

Oregano (Origanum vulgare) is an aromatic herb belonging to the Lamiaceae family. This study evaluated the therapeutic effect of oregano essential oil (OEO) on clinical bovine mastitis caused by Staphylococcus (S.) aureus and/or Escherichia (E.) coli. Thirty-two quarters from 18 lactating cows with subclinical mastitis were selected from a dairy farm and were divided into 4 groups (8 quarters/group): negative control (CON), positive control (GEN) and two OEO-treated groups (OEO-1 and OEO-2). Each group was intramammarily treated with saline, 10 g/tube of gentamicin ointment, and single and double doses of 0.9 mL OEO ointment twice a day for three days, respectively. After the treatments, physical udder conditions were greatly improved in GEN and OEO groups. In CON group, somatic cell counts (SCCs), number of white blood cells (WBC) and bacteria were increased. However, in OEO groups, SCCs and number of WBC were significantly decreased and S. aureus and E. coli were not detected in milk as compared with those before the treatments as well as GEN group. These results suggest that OEO may be a useful alternative to antibiotics for the control of subclinical bovine mastitis caused by S. aureus and/or E. coli.
Animals ; Anti-Bacterial Agents ; Bacteria ; Cattle ; Cell Count ; Escherichia coli* ; Escherichia* ; Female ; Gentamicins ; Humans ; Lamiaceae ; Leukocytes ; Mammary Glands, Animal ; Mastitis ; Mastitis, Bovine* ; Milk ; Origanum* ; Staphylococcus aureus* ; Staphylococcus*

The present study evaluated the effects of a mixture of Galla rhois and Cinnamomum cassia extracts (GCE) (1 : 1, w/w) on susceptibility to the colonization of Campylobacter (C.) jejuni in broilers. Eighty two-week-old broilers (n = 20 per group) were used to estimate the efficacy of GCE against C. jejuni infection via drinking water. Antibacterial activity testing revealed that the minimum bactericidal concentration of GCE against C. jejuni was 2.5 mg/mL. Broilers challenged with C. jejuni were administered 0.0 (Non-GCE), 2.5 (GCE-2.5), 5.0 (GCE-5.0) and 10.0 g/L (GCE-10) GCE for 7 days, and the cecal contents were collected from five broilers per group on the 1st, 3rd, 5th, and 7th day post-treatment. On day 3 post-administration, the number of C. jejuni in GCE-5.0 (p < 0.05) and GCE-10 (p < 0.01) was significantly decreased relative to Non-GCE, while on day 7 those in all GCE-treated groups were significantly decreased compared to the Non-GCE group (p < 0.001). Hematological and blood biochemical analysis revealed no significant differences in parameters between the Non-GCE and GCE-treated groups. Based on the results of the present study, GCE was identified as a safe and alternative candidate to suppress C. jejuni colonization in broilers.
Campylobacter jejuni* ; Campylobacter* ; Chickens* ; Cinnamomum aromaticum* ; Cinnamomum* ; Colon* ; Drinking Water