Fecal samples were taken from 402 cows in Posung, Chonnam which was designated as a place for Korean native cattle breeding. Prevalence of internal parasitisms were determined by the fecal examinations using the floatation and sedimentation procedures. 62.9 % of the cows were found as positive cases with excretion of the eggs of Fasciola hepatica in the fecal specimens. Of those infected with F. hepatica 97 cows free of other pathogenic intestinal parasites were chosen for albendazole treatment. Albendazole tablets (10mg/Kg) were administered to the cows twice at the interval of 4 weeks. Blood samples were collected via jugular vein prior to the first treatment, four weeks after the first treatment and four weeks after the second treatment, respectively. At the same time fecal samples were collected for parasitological examinations by sedimentation methods. The mean pretreatment count was 44 fluke eggs per gram of feces, which compared with 27 epg and 17 epg four weeks after the first and second treatment, respectively. Most of the hematological and biochemical values fluctuated within the normal ranges during the experiment. Eosinophil counts were high initially, decreased after the first treatment and thereafter remained steady. The opposite was the case with aspartate and alanine aminotransferases.

This experiment was carried out to investigate the hematogical and blood chemical values in dairy cattle during the dry and lactating period. Blood was collected from six healthy dairy cattle in Kyongnam province. Leucocytes count, hemoglobin concentrations and the percentage of packed cell volume were lowest at the early lactation period. Leucocytes count was not affected during dry to lactating period. The differential count of eosinophilic leucocytes was low at the late lactation period, while the basophilic leucocytes was high at the dry period. Inorganic phosphorus value was below under normal leve. Creatinine value was from 1 to 2mg/100ml of serum. Positive reaction to CRP was shown in normal dairy cattle. The values of AST and ALT were higher during the dry than lactating period. r-GTP and total cholesterol tend to be decreased during the lactating period. CPK value was not affected for dry and lactating period

These studies were carried out to investigate the changes of blood pictures, histological findings and testosterone concentrations after orchidectomy in ageing rat. The total W.B.C. counts were 9.27 +- 12 x 10** (3)/mm** (3) in the control group, 9.54 +- 34 x 10** (3)/mm** (3) in the sham-operation group and 12.08 +- 28 x 10** (3)/mm** (3) in the orchidectomy group when it was checked 50days after the operation. The number of lymphocytes after orchidectomy began to increase gradually as time passes, thereafter markedly increased 10.12 +- 03 x 10** (3)/mm** (3) at 50 days after orchidectomy. The concentration of testosterone in serum began to decrease gradually after orchidectomy showed lowest level 1.68 +- 0.61 pg/ml at 50 days after orchidectomy while it was 5.82 +- 0.39 pg/ml in control group. The histological findings of thymus after orchidectomy marked increase of thymic lymphocyte, disapearance of fat cells and appearance of mitotic figures