Observations were made on the blood picture of 50 multiparous and 98 infertile cows. Mean values of RBC, Hb, PVC, MCV, MCH, MCHC and platelets for normal multiparous cows were 6.87+-0.84X10** (6)/mm** (3), 10.3+-1.3g/100ml, 31.4+-3.7ml/100ml, 46.1+-6.9u** (3), 15.3+-2.6pg, 34+-2.7%, and 372.7+-304.7X10** (3)/mm** (3) respectively. Mean values of RBC, Hb, PVC, MCV, MCH, MCHC and platelets for infertile cows were 7.00+-0.98X10** (6)/mm** (3), 10.6+-1.2g/100ml, 32.1+-3.6ml/100ml, 45.8+-6.7u** (3), 15.3+-1.8pg, 33.9+-3.3%, and 382.7+-157.5X10** (3)/mm** (3), respectively. Mean values of WBC count for normal multiparous and infertile cows were 7.92+-1.72 and 9.04+-2.87X10** (3)/mm** (3) respectively. In the differential leukocytes count, mean values of neutrophils, lymphocytes, monocytes, eosinophils and basophils for normal multiparous cows were 29.7+-7.9%, 56.8+-7.6%, 2.9+-1.9%, 9.9+-5.3% and 0.3+-0.7%, respectively, and mean values of neutrophils, lymphocytes, monocytes, eosinophils and basophils for infertile cows were 31.9+-7.8%, 57.5+-7.9%, 2.6+-1.9%, 7.5+-4.8%, and 0.4+-0.2%, respectively

A preliminary survey of Sarcocystis species in the slaughtered cattle in Seoul was undertaken during October through December 1987, using digestion diagnostic technique for the heart muscle specimens digested in 0.5 % trypsin solution. Results indicated that 41.5 % of 159 bovine hearts were infected with Sarcocystis proliferative forms. High frequencies in the exotic dairy cattle (42.2%) and the Korean native cattle (41.7%) were noticed in comparison with low frequency in the cross breed (25.0%). No differences were indicated between the sexes of the host animals, although an age difference was noticed as 48.9 % in cattle older than four years in comparison with 39.0 % and 37.1 % in younger than two years and in two to four years, respectively

To determine the prevalence and the morphological identification of two Eimeria species in fecal examinations, a total of 1092 fecal specimens collected during the period of March to December in 1987 was tested by means of flotation technique. The prevalence of two species was revealed as 1.83% and 0.92% in E. bukidnonensis and E. wyomingensis, respectively. The oocysts of E. bukidnonensis measured in range of 41.3 micro m to 49.4 micro m (mean 45.5+-1.7) x 28.8 micro m to 35.3 micro m (mean 32.2 +-1.2), and E. wyomingensis 36.9 micro m to 44.5 micro m (mean 39.8+-1.7) x 26.5 micro m to 29.9 micro m (mean 28.2+-0.9). The oocysts of E. bukidnonensis appeared darker and more robust than those of E. wyomingensis. The striations in the oocyst wall of E. bukidnonensis were more peculiar than in E. wyomingensis. Among the morphological characteristics, the widths could be reliably taken as a differential point of view for two Eimeria species

Xylazine hydrochloride is a widely used analgesic, sedative and muscle relaxant in veterinary clinic. Yohimbine hydrochloride and 4-aminopyridine are known as antagonists of xylazine hydrochloride. This paper investigated whether or not there exists an antagonism of yohimbine hydrochloride and 4-aminopyridine to xylazine hydrochloride. After xylazine hydrochloride administration, the gizzard motility in chicken was instantly inhibited in relaxation state, and this state was prolonged as the dose was increased. After yohimbine hydrochloride administration, the gizzard motility in chicken showed increase of contractile frequency. After 4-aminopyridine administration, the gizzard motility in chicken was gradually recovered next to decrease of contractile amplitude and frequency. After the combination of yohimbine hydrochloride and 4-aminopyridine administration, the gizzard motility in chicken showed increase of amplitude and radical increase of frequency. After xylazine hydrochloride administration, the relaxation time was shortened by yohimbine hydrochloride, 4-aminopyridine and the combination of yohimbine hydrochloride and 4-aminopyridine. In conclusion, the gizzard motility in chicken was inhibited by xylazine hydrochloride, and this effect was antagonized by combination of yohimbine hydrochloride and 4-aminopyridine

The present study was carried out to investigate the estrous behavior and vaginal smear after induction of estus with exogenous hormones in the premature, metestrous and anestrous bitches. In a total of 21 bitches(Mixed breed: 16, Jindo breed: 5), from 10 months to 5 years of age and weighing 8 to 15 kg the change of vaginal smear and the estrous behavior before and after induction of estrus was studied. In the treatment A(They were given the PGF2alpha, estrone, estradiol-17beta, PMSG and HCG) proestrus commenced in 10.16+-1.44(Mean+-SEM) days after treatment. The mean duration of proestrus and estrus was 7.50+-1.44 and 13.50+-3.44 days, respectively. In the treatment B(They were given the PMSG and HCG) proestrus commenced in 5.53+-0.59 days after treatment. The mean duration of proestrus and estrus was 6.60+-0.71 and 14.60+-1.14 days, respectively. All of the 6 bitches in the treatment A showed vulval swelling and vaginal discharge. 14 of the 15 bitches in the treatment B showed vulval swelling and vaginal discharge. However, all of the treatment A and B showed male acceptance. The main change of vaginal smear in proestrus and estrus after induction of estrus was an increase in the proportion of anuclear and superficial cells associated with a decrease in small intermediate and parabasal cells. By the estrous behavior and vaginal smear the estrus was induced in all the premature, metestrous and anestrous bitches

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