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도축돈의 혈청, 뇨 및 근육에서 sulfamethazine 잔류 조사
추금숙 ( Keum Sook Chu ),오언평 ( Un Pyong Oh ),최인열 ( In Yeol Choi ),송희종 ( Hee Jong Song ),채효석 ( Hyo Seok Chai ) 한국가축위생학회 1997 韓國家畜衛生學會誌 Vol.20 No.2
This study was undertaken to determined the sulfamethazine residues in urine, serum and muscle of slaughtered pigs(n=230) by the method of TLC, EEC-4-plate and HPLC. 1. Inhibition diameter characteristics of reference bacterial substance by EEC-4-plate method and antibacterial inhibition zone was appeared sulfonamides in BS pH 7.2 2. Residual sulfamethazine was detceted from 7 serum(3.04%) and 10 urine(4.35%) by TLC test and concentration of residues was higher in urine than serum. 3. Residual sulfamethazine was detected from 9 muscle(3.91%) by EEC-4-plate method. 4. Positive samples by TLC test and EEC-4-plate method were exceed 0.lppm quantitative analysis from 7 muscle(3.04%).
한규삼 ( Kyu Sam Han ),이성효 ( Sung Hyo Lee ),서문정 ( Moon Jeong Sub ),오언평 ( Un Pyong Oh ),채효석 ( Hyo Seok Chai ),유혜진 ( Hye Jin You ),임채웅 ( Chae Woong Lim ) 한국가축위생학회 1997 韓國家畜衛生學會誌 Vol.20 No.2
This article reports a spontaneous thoracic teratoma in a laying hen (Deklb brown warron). In this case, a 40 days old hen was submitted for necropsy as part of an investigation into a flock problem suspected Marek`s disease to Chonbuk Veterinary Service Laboratory in 1983. On the gross finding, mass was in the cranial subpulmonary cavity and attached to the vertebral column. It contained fully developed contour feathers. Histologically, feathers were arised from feather follicles complete with arrector plumi muscle, nerve, vessel and mucous gland composed with simple tall columnar epithelium. The outer surface of mass was lined by keratinized or nonkeratinized stratified squamous epithelium. It converted to pseudostratified ciliated columnar epithelium in some area. There were lymphocyte infiltration around gland tissue and eosinophilic intranuclear inclusion bodies in nonkeratinized epithelium. This thoracic teratoma was composed of ectodermal origin, squamous epithelium and nerve, and endodermal origin, mucous gland. This case in laying hen has never been reported in the literature in the world.
이정원 ( Jeoung Won Lee ),임채웅 ( Chae Woong Lim ),오언평 ( Un Pyong Oh ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.22 No.4
This case occurred following accidental consumptions of toxic levels of feedstuffs in the Korean indigenous cattle which were pregnant for 3-6 months. Grossly, poorly defined bluish coloration in the ventral sac of the rumen, reticulum and omasum was visible on the surface of the stomach. The severely affected ruminal walls were perforated and blood-tinged exudate was observed and death followed due to acute diffuse peritonitis. There were copious amount of porridgelike rumen contents, which has a distinct fermentative odor. The epithelia were easily wiped off and hyperemic in patch. Histopathologically, chemical rumenitis with neutrophilic infiltration and opportunistic fungal infection was evident in the mucosa and submucosa. Multifocal necrotic foci with fungal hyphae on the liver and severe congestion on the renal medulla were noted. There was no evidence of heavy metal and aflatoxin Bl in the suspected feedstuffs. This case was diagnosed as acute carbohydate engorgement in cattle.
모계의 전염성기관지염, 전염성 F낭병 및 뉴캣슬병 백신투여에 따른 모체이행 항체의 변동
고원석 ( Won Seok Koh ),김태중 ( Tae Joong Kim ),이정원 ( Jeong Won Lee ),서이원 ( Lee Won Seo ),송희종 ( Hee Jong Song ),오언평 ( Un Pyong Oh ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.21 No.2
Serum samples collected from 30 breeders and their progeny 30 chicks. The antibodies against infectious bronchitis(IB), infectious bursal disease(IBD) and Newcastle disease(ND) viruses were detected by ELISA using commercial ELISA kit. The breeders were vaccinated against IB, IBD and ND viruses according to general vaccination program. Geometric mean titers(GMT) of ELISA were monitored from 1-day old to 17-day old chicks and compared with breeder chickens. The GMT of ELISA to IB, IBD and ND were declined half level of the breeder antibody titer at 6-, 8- and 7-day old. And, the GMT of ELISA to IB, IBD and ND were declined than that of protective titer at 6-, 1-, and 4-day old. Thereafter, the GMT of ELISA was declined and disappeared according to ages of chicks. Taken together, this study led to conclusion that time-course of maternal antibody titers of chicks from vaccinated breeders, and this is very important data for vaccination to chicks.
육계에서 전염성기관지염, 전염성 F 낭병, 뉴캣슬병 백신투여에 따른 혈중항체가의 변동
고원석 ( Won Seok Koh ),백귀정 ( Kui Jeong Baek ),이정원 ( Jeong Won Lee ),서이원 ( Yee Won Seo ),김태중 ( Tae Joong Kim ),송희종 ( Hee Jong Song ),오언평 ( Un Pyong Oh ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.21 No.3
Serum samples were collected from 100 breeders and their progeny 600 broilers. The breeders and broilers were vaccinated against infectious bronchitis(IB), infectious bursal disease(IBD) and Newcastle disease(ND) viruses according to general vaccination program. The antibodies in serum samples against TB, IBD and ND viruses were detected by ELISA using commercial ELISA kit. Geometric mean titer(GMT) of ELISA was monitored from 1-day-old to 35-day-old broilers and compared to that of breeder chickens. The GMT of ELISA to TB, IBD and ND was declined half level of the day old broiler`s antibody titers at about 4, 9 and 4 days of age. The GMT of ELISA to IB, IBD and ND was declined than that of protective antibody titer at about 12, 11, and 15 days of age. Thereafter, the GMT of ELISA to IB, ND were declined and disappeared according to age of broilers. The GMT of ELISA to IBD was declined according to age of broilers, but at 25 days of age increased and 31 days of age increased than that of protective antibody titer. Taken together, these studies led to conclusion that time-course of antibody titers of broilers from vaccinated breeders and that of progeny broilers which vaccinated according to vaccine program. Those are very important data to design vaccine program to breeders and broilers.