The in vitro activity of penicillins (penicillin G, ampicillin, carbenicillin, methicillin and cloxacillin) and gentamicin to Staphylococcus aureus and coagulase-negative staphylococci isolated from bovine mastitic milk samples was determined. The growth of all isolates of staphylococci tested was inhibited by cloxacillin and methicillin at concentration of 0.78 micro g/ml and by gentamicin at a minimum inhibitory concentration (MIC) of 1.56 micro g/ml

The specimens were examined at the Institute of Veterinary Research in Anyang, Korea R. and were identified as Rhipicephilus sanguineus (Latreille 1806). The morphological characteristics observed by means of the scanning electron microscope were presented with some SEM microphotographs. As R. sanguineus was firstly discovered to occur in Korea R, a total of 20 species of ticks belonging to 8 genera such as Argas, Amblyomma, Boophilus, Dermacentor, Haemaphysalis, Hyalomma, Ixodes and Rhipicephalus has now been recorded

The research was conducted to confirm the agent responsible for the antimicrobial activity contained in the fermented tomato juice with Lactobacillus acidophilus to extract and purify the antimicrobial agent to find the biological, physical and chemical properties of the agent. The agent responsible for the inhibitory activity was confirmed by both well assay method using fermented tomato juice with L. acidophilus and turbidimetric technique using the cell-free filtrate or neutralized filtrate of tomato acidophilus culture and found exerted antimicrobial agent other than lactic acid

Effects on the healing process of the wound was compared between acupuncture and medicament anesthesia. Ten adult dogs were used and for medicament anesthesia thiopental sodium (Ravonal R) was injected. Incisions were made under anesthesia and thereafter clinical signs were observed and histopathological examinations were performed. No differences were found in the clinical signs between the 2 groups. Macroscopically and microscopically, the healing process was a little faster in the wounds under medicament anesthesia

A total of 466 foremilk from dairy farms in Chonnam Korea [R.] district was examined for the subclinical mastitis over a period of 1 year, using a method of the electrical conductivities (EC); absolute conductivity (AC) and differential conductivity (DC) and quarter difference value (QD), in relation to the California mastitis test (CMT) and the direst somatic cell count (DSCC). The compatibility and efficiency rating between the EC values and the other screening tests was conducted

The study was to find out the changes of hormone levels in blood serum and milk of Holstein cows during the estrous cycle. The progesterone, estradio 1-17beta from the blood serum and milk samples were assayed by radioimmunoassay methods. During 20 to 25 days after artificial insemination, the accuracy of pregnancy diagnosis from the blood serum progesterone levels were 87.5% for non pregnant cows (2.Ong/ml) and 83.3% for pregnant cows (3.Ong/ml). The accuracy of pregnancy diagnosis from the milk progesterone levels were 75.0% for non-pregnant cows (2.4ng/ml), and 94.4% for pregnant cows (3.2ng/ml)

A migratory bird, the white stork Ciconia boyciana was captured from a pond in the Chejudo, Korea R. on the 18th of Dec. 82. The morphological characteristics were described as seen in the binocular stereoscopic microscope and further fine structures were observed by means of the scanning electron microscope (model; ISI-DS-130). The bird was examined for ectoparasites at the Cheju Provincial Veterinary Research Lab. Two kinds of specimens were collected from the head and body feathers. The specimens were sent to the Inst. of Veterinary Research in Anyang, Korea R. for classification and identification

Five Korean native goats were used to test the effectiveness of the 2 modified techniques (Method 1 and 2) of Pawlow's pouch method. Both methods turned out to be successful and simpler than the original Pawlow's pouch method. In both methods, the miniature rumens were formed on the junction of 2 veins; vena ruminalis sinistra and vena ruminalis dextra. Both method 1 and 2 have the advantage of shortening the operation time, but caution was necessary to prevent the fistual formation between the rumen and miniature rumen in Method 1.

This paper deals with the histopathological observations of the perirenal edema in pigs and rabbits administered with Amaranthus retroflexus, based on the clinical and pathological observations of the porcine perirenal edema naturally occurring in Korea R. In the natural case, clinical signs are trembling, weakness and incoordination of the hindquarters, followed by sternal recumbency, coma and death. Death usually occurs within 24 hrs after the appearance of illness signs