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Pregnancy-associated changes in morphological and histochemical characteristics of the uterine cervix of the native Korean cattle
1988
Park, G.M. | Yang, H.H. | Paik, Y.K. (Chonbuk National Univ., Chonju (Korea R.). Cell. of Agriculture)
This study was performed to investigate the effect of gestation on the histological and histochemical changes of the uterine cervix of the native Korean cattle. A total of 110 cows obtained from the chonbuk abattoir were divided into six groups. The 1st group was of 9 non-pregnant cows and 101 singleton pregnant cows were grouped into 5 groups from pregnant I to pregnant V according to gestation periods by means of crown rump length measures. For light microscopy the tissues were fixed in 10% neutral formalin and processed routinely for paraffin sections. The 6um sections were taken and stained with H-E, Alcian blue pH 1.0, Alcian blue pH 2.5, Alcian blue pH 2.5/PAS, PAS reaction, toluidin blue, and trichrome. The cervical lengths and widths were increased in relation to advancing gestation. The cervical mucosubstance was composed of mixed mucopolysaccharides; the acid mucus was increased from the early pregnant state but the neutral mucus was found after pregnant IV, and the mucus was stained deeply in each staining in the fold cavity in according to gestation state.
Mostrar más [+] Menos [-]Immunocytochemical study of the endocrine cells in the gastrointestinal tract of the Korean native cattle
1988
Cho, S.W. (Chungnam National Univ., Taejon (Korea R.). Coll. of Agriculture) | Kitamura Nobuo (Obihiro Univ. of Agriculture and Veterinary Medicine, Hokkaido (Japan))
Regional distribution and relative frequency of endocrine cells in ten portions of the gastrointestinal tract of the Korean native cattle were observed by immunocytochemical methods using specific antisera against chromogranin, serotonin, somatostatin, glucagon, bovine pancreatic polypeptide (BPP), motilin, gastric inhibitory polypetide (GIP), neurotensin, secretin, gastrin and substance P. In the abomasum, chromograin-, serotonin-, somatostatin-, motilin-, glucagon-, gastrin-, and substance P-immunoreactive cells were found. Chromogranin- and serotonin- and serotonin-immunoreactive cells were more numerous in the fundic region than pyloric region. Somatostatin- and gastrin- immunoreactive cells were numerous in the pyloric region than in the fundic region. In the large intestine, chromogranin-, serotonin- and BPP-immunoreactive cells were widely distributed and most numerous in the rectum. Somatostatin-, glucagon- and substance P-immunoreactive cells were rarely seen in the large intestine
Mostrar más [+] Menos [-]Effect of dietary iron and vitamin E deficiency on polyunsaturated fatty acids and their derivatives in rat
1988
Huh, R.S. | Do, J.C. | Kim, S.T. (Kyungbook National Univ., Taegu (Korea R.). Coll. of Veterinary Medicine) | Kim, S.H. (Korea Institute of Chemistry, Seoul (Korea R.))
This study was designed to elucidate the effects of iron, a well known catalyst of lipid peroxidation, on the contents of phospholipids, unsaturated fatty acids composed in phospholipid molecules and their derivatives, prostaglandins, and the composition changes of fatty acids contained in phospholipids. Iron decreased the contents of phospholipids and its components of unsaturated fatty acids. Catalytic action of iron decreased the composition rates of linoleate and linolenate composed in phospholipid molecules, while that of arachidonate was inclined to increase. The content of arachidonate was increased and that of prostaglandins was decreased without regard to increase the precursor of prostaglandins. It may be concluded that the decreases of the activities of prostaglandins and the increase of arachidonate are due to inhibition of the activities of enzyme systems responsible for prostaglandin synthesis by lipid peroxides produced by the catalyst of iron
Mostrar más [+] Menos [-]Studies on the blood chemical properties in racehorses, 2. Blood chemical values
1988
Kang, C.B. (Kyeongsang National Univ., Chinju (Korea R.). Coll. of Agruculture)
This experiment was carried out to provide the data of blood chemistry in use of application to clinical diagnosis in racehorses. Blood was collected from 30 racehorses (female 17, male 13). Calcium, inorganic phosphorus, blood glucose, blood urea nitrogen, cholesterol, bilirubin, fibrinogen and ketone body in serum were analyzed. The values of calcium and inorganic phosphorus were maintained a certain level without much variation regardless of sex and species. Ca/P ratio was in the range of 3.13-3.35. The value of blood glucose was 60mg/100ml. Age and sex of racehorses make no difference in the value. The value of blood urea nitrogen and total cholesterol showed a tendency to increase according to the age. Total cholesterol value was somewhat higher in male than in female. The value of total bilirubin showed a tendency to increase according to the age. There was no difference between sexes in the value. The value of fibrinogen showed no apparent difference with age and sex. Ketone body was negative in all of the cases. There was no variation on the species of the racehorses
Mostrar más [+] Menos [-]A survey on the lead contents of feedstuffs produced in Korea
1988
Lee, H.B. (Kyongbuk National Univ., Taegu (Korea R.). Coll. of Veterinary Medicine)
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
Mostrar más [+] Menos [-]Patterns of mastitic pathogens and antibiotic susceptibility of bovine clinical mastitis
1988
Kim, D. (Seoul National Univ., Suwon (Korea R.). Coll. of Veterinary Medicine)
A total of 593 mastitic pathogens was isolated from the clinical mastitic milk of dairy cattle in Kyonggi area from March 1984 to February 1988. The mastitic pathogens were further studied bacteriologically and examined for susceptibility patterns to 10 antibiotics. 173 pathogens were isolated in the first year of studies, 205 pathogens in the second year, 122 pathogens in the third year and 93 pathogens in the last year. The pathogens isolated from clinical mastitis were more in summer than other seasons. Staphylococcus spp (50%) and Streptococcus spp (18%) were the main pathogens in the first year of studies but coliforms (15%) and other bacteria (40%) were the main pathogens in the last year of studies. Coliform mastitis occurred only in summer and autumn. Antibiotic susceptibility patterns of the same genuses from clinical mastitis infections in different herds and in different years varied greatly. Therefore, treatment should be selected on the basis of susceptibility test results
Mostrar más [+] Menos [-]A survey of Sarcocystis infections in slaughtered cattle in Korea
1988
Kang, Y.B. | Kim, S.H. | Wee, S.H. (Rural Development Administration, Anyang (Korea R.). Veterinary Research Institute)
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
Mostrar más [+] Menos [-]Immunohistochemistry for detection of Aujeszky's disease virus antigens: immunogold-silver method in tissue sections
1988
Kim, S.B. (Kyongsang National Univ., Chinju (Korea R.). Dept. of Veterinary Medicine)
The present study was done to demonstrate ADV antigens in frozen and paraffin sections from ADV-infected pigs and cell cultures by using of the IGS method. Tissue specimens from 3 young pigs infected with ADV-phylaxia strain and of 2 healthy pigs were used. Fibroblastic cells originated from pig brain and BHK cells were grown and confluent monolayers were infected with the virus. Two monoclonal antibodies and a specific hyperimmune serum to ADV were used as the source of primary antibodies for both the IGS and immunoperoxidase methods. Application of the IGS method yielded a black fine granular reaction in positive areas, and the results were superior to those obtained using the immuno-peroxidase technique for all cases tested. The IGS method might be useful in the detection of various viral antigens in tissue sections
Mostrar más [+] Menos [-]Studies on the blood chemical properties in racehorses: I. serumenzyme activities
1988
Kang, C.B. (Kyongsang National Univ., Chinju (Korea R.). Coll. of Agriculture)
The present study was carried out to investigate the serum enzyme activities of racehorses. The enzymes investigated were aspartate and alanine aminotranserase (GOT, GPT), gamma-glutamyl transpeptidase(gamma-GTP), Lactic dehydrogenase(LDH), creatine phosphokinase(CPK), and alkaline phosphatase(ALP). Animals used were 30 healthy racehorse(female 17, male 13) average weighing 435kg and were from 2 to 8 years of age. LDH activity was progressively decreased with age and next in the order of GOT and CPK activities. GOT and gamma-GPT activities were not changed with age but ALP activity tended to be decreased with age. Activities of GOT, GPT, gamma-GTP and ALP were higher in female than in male. There was no difference in CPK activity by sex, and no difference was found out among breeds
Mostrar más [+] Menos [-]Prevalence and morphological identification of Eimeria bukidnonensis and E. wyomingensis in cattle, Korea
1988
Wee, S.H. | Kang, Y.B. | Kim, S.H. (Rural Development Administration, Anyang (Korea R.). Veterinay Research Institute)
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
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