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韓牛肥育의 收益性 增大에 관한 硏究 : 肥育開始時의 體重이 增體와 收益性에 미치는 影響을 中心으로
姜昌鎭 건국대학교 1977 論文集 Vol.6 No.1
This experiment was carried out to investigate the effect of starting body weight on weight gain, fattening period and economic efficiency in short and middle periods fattening system. Averaged starting body weights of each groups composed of 15 Korean bulls. Which were 200, 250, and 300kg, respectively. The results obtained in those experiments were as follows; 1) Average daily gains through out of fattening period were 0.917Kg for the groups of 200Kg, 0.922Kg for 250Kg, and 0.933Kg for 300Kg, respectively. 2) The larger the starting body weight, the smaller daily gain was resulted ; daily gain of each groups till 111 day of fattening were 0.979 Kg for the group of 200Kg, 0.929Kg for 250Kg, and 0.861Kg for 300Kg, respectively. 3) Decline of daily gain was initiated from the 5th month of fattening, and this trend was contributed to the seasonal changes. 4) Duration of fattening period from starting body weight to 420Kg was 227.5 days for the groups of 200Kg, 182.5 days for 250Kg, and 142.6 days for 300Kg, respectively. Differences in Starting body weights ranged from 41.7Kg to 45.1Kg was resulted in fattening period from 39.9 to 45 days. 5) Needs of D.C.P for the 1Kg gain in the groups of 200Kg, 250Kg and 300Kg were 0.879, 0.915, and 0.943Kg, respectively, and those of T.D.N in each groups were 5.660, 5.888, and 6.064Kg, respectively. 6) Break even point was founded at 170 days for the groups of 200Kg in the short and middle period fattening system. However, Break even point of later groups were not appeared. And economic efficiency, therefore, could be expected by the prolonged fattening period for the later two groups. 7) Net incomes per day for the groups of 200Kg, 250Kg, and 300Kg were 293.13, 327.95, and 521.74 won, respectively. It was, therefore, concluded that higher income was expected from higher starting body weight. 8) Percentages of each items composing production cost were 50.81% of feeders cost, 31.89% of feed cost 8.21% of management cost, 5.47% of interest, 2.63% of depreciation, and 0.99% of losses, respectively. And feeders cost was changed in parallel with the increase of body weight and the reverse were true for the other items. 5) Feed costs for 1Kg gain were, 459.77 for the croups of 200Kg, 488.32 for 250Kg and 494,16 for 300Kg, and total production coats were 711.40 for 200Kg,748.43 for 250Kg and 759.92 well for 300Kg, respectively. The higher starting body weight the larger production costs were resulted. 10) The higher starting body weight, the lower total costs per Kg beef production was resulted; total costs for production 1 Kg beef were 615.02 for the group of 200Kg, 611.25 for 250Kg, and 584.41 for 300Kg, respectively.
골수강내 금속정 및 나사못 맞물림을 이용한 경골의 치료
최창혁,권굉우,김신근,이상욱,강창진 대구효성카톨릭대학교 1997 연구논문집 Vol.56 No.2
Fracture of the tibial shaft is the most common among the long bone fractures, and it is difficult to treat because of a high incidence of delayed union, nonunion and malunion. Interlocking Intramedullary mailing is considered to be valuable method in treating long bone fracture such as tibial fracture these days because it enables rigid fixation, early joint motion exercise and weight bearing. Between April 1993 and March 1997, we treated 63 cases of tibia fractures with interlocking intramedullary nailing. The results were as follows: 1. Among the 63 cases, 51 cases were closed fractures and 12 cases were open fractures. 2. Static interlocking nailing was done in all cases and dynamization was done in 7 cases in postoperative 13 weeks. 3. Average union time was 19.9 weeks, 19 weeks with closed tibia fracture and 2.4 weeks with open tibia fracture. According to fracture site, 22 weeks with proximal tibia fracture, 19.2 weeks with mid-tibia fracture and 21.4 weeks with distal tibia fracture. According to the Winquist-Hansen classification, Type I was 19.8 weeks, Type Ⅱ was 20.4 weeks, Type Ⅲ was 22 weeks and Type Ⅳ was 26 weeks. 4. Weight bearing was started at the time of subsidence of pain and tenderness of the fracture site, 11.5 weeks with closed fracture and 12.3 weeks with open fracture. 5. According to the functional result of Klemm and Borner, 44 cases were excellent, 9 cases were good, 7 cases were fair and 3 cases were poor.
최창혁,강창진 대한골절학회 1996 대한골절학회지 Vol.9 No.4
We treated 43 cases of the complete dislocation of the acromioclavicular dislocation with the modified Weaver and Dunu method(22 cases), Phemister method(l2 cases) and conservative method(9 cases) from April 1987 to February l995. Be purpose of this study is to compare the clinical and radiological results of two operative method and conservative treatment. The average follow up period was fifty six months and the results were as follows: 1. Of the 43 patients. there was 34 male and 9 female patients, and peak incidence was in 3rd and 4th decades(47%). 2. Cause of injury was fall down (20 cases). traffic accident (12 cases). and slip down(11 cases) and left side was predominent with 26 cases (60%). 3. The functional result by the Weitzmann criteria was Excellent in 15 cases(68%). Good in 5 cases (23%). and Fair in 2 cases(9%) with Modified Weaber and Dunn method, and 8cases(66%), 2cases(l7%) and 2cases(l7%) with Phemister method, and 5cases(55%), 2cases(23%), and 2cases(23%) with conservative treatment. 4. Them were no mojor complications that could. the end results 5. The functional mulls were similiar to all treatment modalities, and coracoclavicular interval ratio was well maintained regardless of two operative method, bat less complication and more patient satisfaction were after Modifid Weaber and Dunn method.
조정현,강창진,이영주 대한마취과학회 1991 Korean Journal of Anesthesiology Vol.24 No.1
Factors which may influence the extent of spinal anesthesia include gravity, baricity, volume, doee and concentration of the injected local anesthetic solution, and patient position. We have often experienced unexpected high level of spinal anesthesia and incomplete muscle relaxation when 0.1% tetracaine mixed in distilled water was injected intradurally for the perianal operation in jack-knife position as hypobaric technique. We have done this study to see whether injected volume or patient position influence the level for the perianal surgery. Fourty-eight patients were divided into two groups, group I, 0.1% tetracaine 5 ml, n=24, and group 11, 0.4% tetracaine 1.25 ml, n=24 in the jack-knife position of which cephalad downward angle was 15°, 18° and 23°. Sensory dermatomal levels of anesthesia were assesed using loss of pinprick aensation at 5 min and 30 min following completion of injection. Results are as follows: 1) Tetracaine mixtures of both groups were consistently hypobaric compared to patient CSF. 2) In both groups, there were significant differences in the sensory block level between 15° and 18° and 15° and 23° position but no difference between 18° and 23° position after 30 min. 3) Level of anesthesia were higher after 30 min than 5 min in the both groups. 4) The effect of volume of injected anesthetic solution could not be seen in the bath groups.