Attempts were made to determine the clinical features and the causative organism of ringworm occurring in a cat in Chinju city, Korea. Alopecia and greyish white crusty lesions were obseved around the eye, nose and posterior limb while irregular, partial loss of hairs and white scales were in the ear, neck and abdomen lesions. Direct microscopic and cultural examination were carried out for the hairs and crusts taken from the skin lesions, and the causative organism was identified as M. canis

To examine the selectivity of diltiazem, used in the cardiovascular diseases, on alpha-1 and alpha-2 adrenoceptor-induced pressor responses, effect of diltiazem on alpha-adrenoceptor agonist-induced pressor responses were investigated in urethane-anesthetized rabbits and spinal rabbits. Intravenous diltiazem(10,30,100,300,1000 micro g/kg) produced dose-dependent depressor response in rabbits. Pressor responses to intravenous norepinephrine(10 micro g/kg) and phenylephrine (30 micro g/kg) were inhibited by pretreatment with intravenous diltiazem in rabbits and no difference was noted between the degree of both inhibitions of the pressor response by diltiazem. Pressor responses to intravenous norepinephrine (3 micro g/kg), phenylephrine (20 micro g/kg) and clonidine (300 micro g/kg) were inhibited by pretreatment with intravenous diltiazem in spinal rabbits. No difference was noted between the inhibition of norepinephrine-induced pressor response and that of phenylephrine-induced pressor response by diltiazem. The inhibition of clonidine-induced pressor response by diltiazem was slightly more prominent than that of norepinephrine-or phenylephrine-induced pressor response. These results suggest that diltiazem significantly inhibits both pressor responses mediated by alpha-1 and alpha-2 adrenoceptors

In the course of studying porcine enterovirus infection in piglets, the vascular endothelial cells in the CNS of colostrum-deprived piglets with polioence-phalomyelitis were investigated by electron microscope. The experimental piglets were orally infected with the porcine enterovirus serogroup 3 isolated in Korea and necropsied at 7 days postinoculation. Crystalline arrays of viral particles were found in the vascular endothelial cells of the spinal cord and cerebellum. Aggregates of immature viral particles were occasionally observed in the vascular endothelial cells in the meninges. The rough ER was deprived of ribosomes, irregularly dilated and associated with viral crystals. There were abundant cytoplasmic filaments, dilatation of perivascular space, perivascular cuffing, and the partial disruptions of endothelial cell membrane and basal lamina

The In vitro drug susceptibility of 83 strains of Bordetella bronchiseptica recoverd from Korean pigs with atrophic rhinitis was investigated by the use of disk diffusion method. The majority of the organisms were highly resistant in order of prevalence to penicillin (98.7%), ampicillin(91.5%), streptomycin (90.3%), triple sulfa (83.1%), and trimethoprim/sulfamet-hoxazole (70.7%) while none of them were resistant to gentamicin, only 3.6% to colistin, chloramphenicol and kanamycin and 6.0% to tetracycline. The percentage of the organism resistant to bicozamycin, cephalothin and neomycin were 34.9%, 34.1% and 18.4%, respectively. A high prevalence of multiple drug resistance was observed and the 3 most common resistant patterns among 35 patterns noted were Am Pc Sm Sss Sxt(26.5%), Am Cf Pc Sm Sss Sxt(12%) and Am Bm Pc Sm Sss Sxt(9.6%) patterns

The present study was conducted in order to get the normal hematologic values of Korean Jindo dogs. Blood samples were taken from 328 (male 92, female 236) healthy Jindo dogs in Jindo area. The mean values of red blood cell (RBC) count, hemoglobin (Hb) content and packed cell volume (PCV) in the age group of less than one year were 6.77(male 7.44, female 6.76)X10** (6)/ul, 13,14(male 13.53, female 12.99)g/100ml and 43.28(male 44.47, female 42.79)ml/100ml, respectively, whereas the RBC count, Hb content and PCV in the age group of one year and more were 7.42(male 7.44, female 7.42)X10** (6)/ul, 14.98(male 15.56, female 14.76)g/100ml and 47.18(male 48.43, female 46.71)ml/100ml, respectively. The values of RBC count, Hb content and PVC appeared to be higher in the male than in the female and it increased with aging in the age group of less than one year. The mean values of mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin content (MCHC) in the age group of less than one year were 63.93(male 65.40, female 63.30)fl, 19.41(male 19.90, female 19.22) pg and 30.36(male 30.43, female 30.36)g/100ml respectively, whereas the MCV, MCH and MCHC in the age group of one year and more were 63.58(male 65.09, female 62.95)fl, 20.19(male 20.91, female 19.89) pg and 31.75(male 32.13, female31.60)g/100ml respectively. The values of MCV, MCH and MCHC appeared to be higher in the male than in the female. No differences were found in the MCV and MCH between age groups. The MCHC appeared to be higher in older age group. Mean platelet count in the age group of less than one year was 377,391(male 398,778, female 368,721)/ul, whereas mean platelet count in the age group of one year and more was 354,657(male 373,660, female 347,512)/ul. The platelet count appeared to be higher in the male than in the female and especially lower in the age group of three years and more (305,513/ul) than in the other age groups

Serological study and isolation of Brucellae from dairy cattle were carried out in Kyungbook area of Korea during the period from 1984 to 1985. Biotyping of the isolates was done. Of the 11168 cattle in 2479 herds examined, 27 cattle (0.24%) in the 17 herds (o.69%) were serologically positive for brucellosis. Brucella abortus was recovered from 20 (74.1%) of the 27 infected cattle, and all the strains of the isolates belonged to biotype 1. Of the tissues cultured for brucellae, the supramammary lymph nodes had the highest rate (55.6%) of recovery of brucella organisms

This experiment was carried out to determine the progesterone concentration of bovine plasma by liquid phase double antibody enzyme immunoassay. The optimum conditions of assay-system, double (first and second) antibody and carrier (normal rabbit serum) were investigated. The optimum dilution rate of first antibody, second antibody and normal rabbit serum was 10X10** (3) to 15X10** (3), 20 and 1X10** (3) times, respectively

In order to investigate the morphological characteristics of dendritic cells in the mammary gland, the appearance on the clear cells(CLs) or ATPase-positive dendritic cells(APDCs) have been observed by the light microscope. CLs were observed in the mammary tissues of the experimental animals, such as mice, rats, guinea pigs, rabbits, cats, dogs, pigs, cows and Korean native goats, and these CLs were confirmed as the ATPase-positive cells of typical dendritic appearance(APDCs). The APDCs were distributed in between the secretory epithelial cells, between the secretory epithelial cells and the myoepithelial cells, the basal area of the secretory epithelial cells, the interalveolar and interlobular connective tissues, and in between the epithelial cells of secretory duct. The APDCs were observed more frequently during the middle period of lactation than the other periods, and were irregularly or uniformly distributed according to the location. The mean difference between the inbred and the noninbred counts in the mice was statistically significant(P0.0001), and the similar result was presented in the rats(P0.0000)

The origin of Jindo dogs has been controversial. It has been informed by words of mouth that they are the offsprings of either the dogs of Sung dynasty (960-1279 A.D.) in China or the Mongolian dogs. Some breeds of dogs in Japan now have almost same appearance as jindo dogs. The authors reviewed the history of Japan and found that Korean hunting dogs were sent to Japan in early 5th century, which was before Sung dynasty of China. Dr. Jae-Keun Ryu of National Institute of Environmental Research has done some work on serums of dogs of both Korea and Japan; the results of his serological and molecular biological studies indicated that Korean dogs were sent to Japan 1,300-2,500 years ago. Jindo dogs appear to be the descendants of the dogs of th Stone Age. They have adapted themselves to the unfavorable environment of Jindo island so that they can maintain pure line-age and wild nature until today. It was concluded that they are Korean native dogs, not the offsprings of the dogs of Sung dynasty or the Mongolian dogs

Present study was undertaken in order to evaluate the lead contents of various feedstuffs produced in Korea and the effect of the burning of gasoline by automobiles on the lead contents. Ninty-one samples near and 95 far road were collected from 9 regions(Do). All of the samples were washed, dry-ashed and analyzed for lead content using atomic absorption spectrophotometer. The mean values obtained were checked for significance of difference using computer. The lead content in micro g/g of agriculture-byproducts were measured with the following mean values and ranges (in parenthesis). Rice bran:2.07+-1.67 (0-5.00), rice hull : 1.84+-1.18 (0-3.71), rice straw:1.27+-1.09(0-3.62), soybean pod; 4.55+-3.13 (1.13+-10.43), and wheat bran: 1.69+-0.86 (0-3.65). The lead content in micro g/g of pasture plants were measured with the following mean values and ranges. Kudzu:2.71+-1.74 (0.38+-8.75), leed: 2.03+-1.61 (0-4.54), lespedeza:4.73+-5.93 (0-31.25), sagebrush: 4.08+-3.75 (0-12.18), Korean-grass: 2.11+-1.38 (0-5.50), maizestalk: 2.62+-2.35 (0-8.65), clover: 3.83+-2.97 (0-12.19), alfalfa: 7.14+-0.97 (4.46-9.25), and timothy: 5.86+-4.79 (0-9.25). Fourteen samples (22.2%) out of 63 agriculture-byproduct samples and 42 (34.2%) out of 123 pasture plant samples showed lead content of more than 3 micro g/g which are said to be the upper limit value for cattle. No significant difference between the mean lead contents of near road, and those of far road was recorgnized. The regional mean values for all kinds of samples collected in Kyungbuk and Kyungnam were significantly (p0.05, p0.10) higher compared to those in Chungnam and Chejudo. From these results it may be concluded that the buring of gasoline by automobiles did not affect the lead contentes of washed feedstuffs produced in Korea at present