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肉牛에 있어서 호르몬 劑製處理가 繁殖障碍牛 治療效果에 미치는 影響
白舜龍,金熙錫,李鍾文,李根常 成均館大學校 科學技術硏究所 1988 論文集 Vol.39 No.1
This experiment was carried out to investigate effect of hormone analogues treatment on the ovarian response and fertility in reproductive disorder heifers. The experimental animals were Charolais and Hereford breed which did not show the estrus symptom at the optimum age for first breeding. Distribution rates of reproductive disorder were ovarian atrphy 32%, persistens C.L 18%, Lutein eyst 21.3%, Follicular cyst 27.9% respectively. The induction rate of estrus by use hormone analogue was 78.8% and conception rate was 70.8% among the heifer which show the estrus symptom after treatment of hormone analogues. In the repeat breeder, the conception rate was 36.8% and was higher in the heifer which have short period of anestrus than that of long period heifer.
白舜龍 成均館大學校 科學技術硏究所 1992 論文集 Vol.42 No.2
The disease of ovary and uterus of 158 cows was 139 cows(73.9%) in ovarian disease and 19 cows (10.15%) in uterine disease. The distribution in occuring site of cystic ovaries was 83.4% in lateral and ovary on right was 52.4% and 31.0% an left and bilateral was 16.6% respectivery. The external sign of cystic ovaries cow depended on the amount of sex steroid hormone in blood and continous heat tended to high estrogen value whereas P value was low. However, anestrus cow was relativery high in P value and low in estrogen value.
백순용,신현성,지상철,이오형 한국축산학회 1994 한국축산학회지 Vol.36 No.4
The objective of this study was to develop the drug treatment combination for piglets that suffer from diarrhea caused by various reasons. Ninety eight percent of diarrheal piglets were cured by the drug combination A in three days, while approximately seventy seven percent of diarrhea piglets were cured by the drug combination B in three days. Consequently the treatment A is more effective than the treatment B in curing diarrhea. Approximately ninety five percent of piglets under 6㎏ BW were cured by administration of the drug combination three times a day. Approximately eighty seven percent of piglets over 6㎏ BW were cured. In conclusion, this drug combination is more effective on the unweaned piglets under 6㎏ BW than those over 6㎏ BW. Antimicrobial sensitivity testing showed that the strains of bacteria causing diarrhea in piglets, specifiallt E. coli were most sensitive to amikacin(95.3%), colstin(89.1%) and sullamethoxazole-trimethoprim(84.4%) among the 14 kinds of antibiotics agents examined.