This study was to investigate the development pattern of epididymis in accordance with the growth of meat-type cockerels. Histological features of various ductules in epididymis of the cockerel on the age of weeks were within 10 weeks after hatching rete testis and connecting ductules were well developed but efferent ductules were observed in immature form. During 10th to 20th week, the lining epithelium of various ductules in epididymis was in the developing stage near to the mature form

This study was undertaken to investigate congenital microphthalmia that occurred at a pig farm in Kyongbuk Korea [R.]. These microphthalmic piglets composed of 20 piglets farrowed by 3 different sows (1, 11 and 8 piglets by No. 1,2 and 3 sow, respectively) that were apparently normal during pregnancy and after parturition. Attempts were made to know epidemiological findings and histopathological changes of these piglets

The hemoglobin phenotype and the gene frequencies of 44 Formosan deer (Cervus nippon) in Kyunggido Korea [R.] area were examined by using cellulose acetate and starch gel electrophoresis. The method of cellulose acetate electrophoresis was simpler, more clear and preserative than starch gel electrophoresis. The hemoglobin phenotype had 3 types as (HbF) (HbFS and HbS). The frequencies of appearence were HbF 47.7% HbFS 47.7% and HbS 4.5%, respectively. The genetic factors of hemoglobin were observed as HbF and HbS and the rates of gene frequencies were 71.6% and 28.4% respectively

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

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.

To validate the physiological properties of the histamine receptors of ileal smooth muscle in dog, the effect of adrenergic, cholineric and H-receptor antagonists on the responses of ileal smooth muscle strips to histamine were investigated. Histamine caused the contraction of ileal smooth muscle and the contractile responses increased between the concentration of histamine (10-7M and 10-5 M) with dosedependent manner in dog. The shorter the treatment interval of histamine, the lower the contractile activity until the treatment interval extended to 40 minutes

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 present observations were focussed mainly on the macroscopic and histopathological examinations of polyps found on the stomach of 4-month-old pig, small intestine of 3-month-old pig and cecum of 9-month-old dog. The polyps were gray or pink hemispherical shapes attached by the broad base to the gastrointestinal walls and were 3 to 8 mm in diameter and diffuse appearance. The surfaces of polyps were flat or indented and were ulcerated in some large polyps

Basic biological and epidemiological observation on eperythrozoonosis like disease of swine in Korea R. was taken, using 157 naturally affected pigs and blood samples of 250 normal pigs. Although infection rates, morphology and sizes of the organisms in stained blood films varied depending on the season, all of the affected pigs showed positive infection and the normal pigs were found 54% positive over the year. The organisms appeared to have 5 morphological forms with sizes of 0.5-5.0 micron but the sizes had increment to 1.4-8.5 micron with cytoplasmic granules when the blood was stored under 0 deg C for more than 1 week or -20 deg C for 24 hrs.

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