학술발표(學術發表) 연제(演題) 및 초록(抄錄) 제일부(第一部): 림상(臨床) : 4. 인천지역(仁川地域) 유우(乳牛)의 Akabane병(病) 항체조사(抗體調査)

강태선,배도권,강은영,최진영,손봉환 한국동물위생학회 1994 학술대회논문집 Vol.1994 No.-

피내반응 검사를 통한 인천지역의 우간질 감염율

조성식,손봉환,박향미,배도권,강구식,한태호 한국수의공중보건학회 1990 예방수의학회지 Vol.14 No.3

피내반응 검사를 통한 인천지역의 우간질 감염율

조성식,손봉환,강구식,배도권,한태호 한국수의공중보건학회 1990 예방수의학회지 Vol.14 No.2

인천지역(仁川地域) 유우(乳牛)의 Akabane병(病) 항체조사(抗體調査)

강태선 ( Tae Seon Kang ),배도권 ( Do Guon Bae ),강석영 ( Seog Young Kang ),최진영 ( Jin Young Choi ),손봉환 ( Bong Whan Sohn ) 한국동물위생학회 1994 한국동물위생학회지 (KOJVS) Vol.17 No.1

Neutralized antibody titer of Akabane disease virus were performed from 810 dairy cows in 45 farming households from May 1992 to December 1993 in Incheon area. The 503 dairy cows at the 21 farming household were conducted from May to December 1992, 307 cows were from January to December 1993. The results obtained are summarized as follows 1. Evaluation of neutralized antibody titer of 810 dairy cows tested during two years revealed that 68.1%(552 heads), during the four year revealed that 69.6%(350 heads), the later year was 65.8%(202 heads) was more than antibody titer 16. 2. Antibody investigation according to area and years, showed no significant difference in the whole area and both years as 65-73% from 1992, and as 65-70% from 1993 had an antibody titer of above 16 or more. 3. Antibody investigation according to age, showed that 34.4% of cows aged below 2 had a titer of above 16, compared with 80.8% for cows aged above 5. It demonstrated that the younger cows had the lower titer level, and the older the higher. 4. Monthly variation of antibody titer showed that the highest level of antibody titer was observed in September, the lowest was in June. It meant that the best periods of vaccination were April, May, June. 5. The result of epidemidogical study to 40 farming households showed that 35 farms(87.5%) had abortions of which were 14 stillbirths, 5 abnormal births, and 13 farms(32.5%) had vaccination.

유질개선(乳質改善)을 통한 락농가(酪農家) 소득증대(所得增大): SCC와 유방염(乳房炎)을 중심으로

손봉환 ( Bong Whan Sohn ),최진영 ( Gin Young Choi ),배도권 ( Do Kown Bae ),정충일 ( Chung Ill Chong ) 한국동물위생학회 1997 한국동물위생학회지 (KOJVS) Vol.20 No.3

The study for a effect of monitoring on bovine mastitis was conduced for improvement of raw milk from Jan. to Dec. in 1996. Sampling the milk of 367 cows(1,406 quarters) from 5 herds in Inchon and were carried out California mastitis test(CMT), somatic cell count(SCC), isolation of pathogens and antibiotic sensitivity tests. The results were summarized as follows, 1. The number of bovine mastitis was 177 cows(48.2%) and 371 quarters(26.4%); clinical mastitis: 25 cows(6.8%), 32 quarters(2.3%) and subclinicsl mastitis: 152 cows(41.4%), 339 quarters(24.1%). Incidence rate of mastitis by season were Summer 52.0%, Fall and Winter 48% and Spring 41%. Incidence rate of mastitis by quarters were Summer 30%, Fall 28%, Winter 25% and Spring 21%, respectively. 2. In the distribution of CMT degree by quarter, CMT positive(CMT±) of 1,406 quarters milk were 50.1%(704 quarters). The ratio of CMT positivity by quarter were left front quarter 55.8%, right front quarter 48.9%, right hind quarter 48.6% and left hind quarter 47%. The ratio of CMT positivity by season were Summer 54.1%, Fall 49.7%, Spring 48.5% and Winter 48%. 3. The highest mean SCC by season among 5 herds was “A” herd. Mean SCC (cell/ml) ofA herd were Summer 2,032,000cells/ml, Fall 1,109,000cells/ml, Winter 782,000cells/ml and Spring 577,000cells/ml. The lowest mean SCC by season among 5 herds was “E” herds. Mean SCC of E herd were Summer 1,064,000cells/ml, Spring 795,000cells/ml, Fall 429,000cells/ml and Winter 400,000cells/ml. Mean SCC of the other herds by season were little difference. 4. The milk samples of “A” herd were collected from 10 cows. In 3 seasons, mean 5CC of No. 2 and 3 cows were than 1,000,000cells/ml. In 1 season, mean SCC of No. 6, 7 and 8 cows were than 1,000,000cells/ml. The more than mean SCC 1,000,000cells/ml of cows by season were distributed Summer 4 cows, Winter 3 cows, Spring and Fall 1 cow respectively. The milk samples of “B” herd were collected from 14 cows. In 3 seasons, mean SCC of No. 1 cow was more than 1,000,000cells/ml. In 2 seasons, mean SCC of No. 5,9 and 14 cows were more than 1,000,000cells/ml. In 1 season, No. 3,6 and 7 cows were more than 1,000,000cells/ml. The more than mean SCC 1,000,000cells/ml of cows by season were distributed Fall and Winter 4 cows respectively, Summer 3 cows and Spring 1 cow. The milk samples of “C” herd were collected from 18 cows. In 2 seasons, mean SCC of No. 16 cow was more than 1,000,000cells/ml. In 1 season, mean SCC of No. 1, 2, 6, 7, 13, 15 and 18 cows were more than 1,000,000cells/ml respectively. The more than mean SCC 1,000,000cells/ml of cows by season were distributed Summer 5 cows, Fall 3 cows, Spring 2 cows and Winter 1 cow. The milk sampes of “D” herd were collected 24 cows. In 3 season, mean SCC of No. 14 cow was more than 1,000,000cells/ml. In 2 seasons, mean SCC of No. 14 and 18 cows were more than 1,000,000cells/ml. In 1 season, mean SCC of No. 1, 2, 3, 8, 12, 17, 19, 20 and 21 cows were more than 1,000,000cells/ml. The more than mean SCC 1,000,000cells/ml of cows were distributed Fall 15 cows, Spring and Winter 4 cows respectively and Summer 3 cows. The milk samples of “E” herd were collected from 27 cows. In 2 seasons, mean SCC of No. 6, 7 and 21 cows were more than 1,000,000cells/ml. In 1 season, mean SCC of No. 2, 4, 7, 11, 14, 16 and 23 cows were more than 1,000,000cells/ml. The more than mean SCC 1,000,000cells/ml of cows were distributed Spring and Fall 5 cows respectively, Summer and Winter 2 cows, respectively. 5. The rate of isolated pathogenic microorganisms from bovine mastitis were summarized as follows: Staphylococcus sp 168 strains(45.8%), Streptococcus sp 82 strains(22.3%), Gram(-) sp 45 strains(12.3%), Gram(+) sp 51 strains and the other sp 21 strains(5.7%). 6. The highest of antibiotic sensitivity test of each microorganism was summarized as follows: Staphyolcoccus sp-cephalosporin 76%, gentamicin 55%, Streptococcus sp-ampicillin 61%, cephalosporin 63%, Gram(-) sp-gentamicin 58%, Gram(+) sp-cephalosporin 63%, The other sp-cephalosporin 90%. Microorganisms showed the highest sensitivity(68%) to cephalospsorin.

소, 돼지, 닭의 호흡기병(呼吸器病)과 설사(泄瀉)에 대한 Norfloxacin 주사(注射) 및 경구용(經口用) 제제(製劑)의 야외치료(野外治療) 실험(實驗)

손봉환 ( Bong Whan Sohn ),황현순 ( Hyun Sun Hwang ),김종훈 ( Jong Hun Kim ),한태호 ( Tae Ho Han ),배도권 ( Do Kwon Bae ) 한국동물위생학회 1991 한국동물위생학회지 (KOJVS) Vol.14 No.2

A field trial of norfloxacin on bovine 206, swine 222 and poultry 205 with respiratory diseases and diarrhea was conducted from Sept 1, 1990 to Jan 30, 1991 in Inch`on and Kyonggi-do. The results are as follows. 1. Guinea pigs and rabbits were dosages 10 and 20 times normal. Ten days of observation saw no side effect. 2. Oral treatment on bovine, swine and poultry showed a curing rate of 82.00~89.06% (Mean 86.00%), compared with 87.27-96.36%(Mean 92.24%) by injection. 3. The curing rate was 81.92% by the fourth treatment. 4. The curing rate with and without the use of adjuvant was 80.00~100% and 83.60~93. 10%, respectively, for swine, and 81.82~100% and 82.00~97.14% for bovine. 5. The curing rate was more dependent on seriousness of illness, environment and time than age. 6. The main disease causing bacteria of bovine respiratory diseases; Haemolytic Sta 27.62%, Haemolytic Str 33.33%, sum of this bacteria is 60.95%, diarrhea: Haemolytic coliform 80.20%, swine respiratory diseases: Haemophilus Spp 20.95%, Haemolytic Sta 72%, Haemolytic Str 21.90%, Sum of these bacteria is 68.57%, diarrhea: Haemolytic coliform 57.26%, poultry respiratory diseases; mycoplasma Spp 29.52%, Haemolytic Sta 13.33%, Sum of this bacteria is 42.85%, diarrhea: Haemolytic coliform 53. 00%. 7. The curing rate of norfioxacin by species of strain, the unidentified bacteria on bovine respiratory diseases was the lowest with 77.78°o, the others ranged from 84.21°o to 10000 with most of them over 90%. 8. The loss of clinical sign on bovine and swine was the highest when after 2~4 application . 9. In terms of antibiotic sensitivity test, norfloxacin was the highest with 84.62~100% (mean 90.09%) among eight bacterias, only 5 of 15 antibiotics had a sensitivity of over 56. 25%, showing a high degree of tolerance.