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최한규(Choi Han Kyu),김남원(Kim Nam Won),최용묵(Choi Yong Mook),윤희섭(Yoon Hee Sub) 강원대학교 산업기술연구소 2001 産業技術硏究 Vol.21 No.1
Normally at a flood season the operation of the dam depends on a short range weather forecast that makes many difficulties of the management at a dry season. It is needed to study the pattern of the long period rainfall. The concept of PMP(Probable Maximum Precipitation) was used for designing dam. From the concept, this study is applied the concept of monthly probable maximum precipitation for operating dam. It can be possible to let us know the appropriateness of a limiting water level at a rainy season. For the operation of dam at a dry season this study can predict roughly the flood season’s pattern of precipitation by month or period, therfore the prediction of precipitation can rise efficient operation of a dam.
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韓牛 肥育促進을 위한 Cobalt(Co) 給與效果에 關한 硏究
尹熙燮,吳世正,姜昌鎭,金時明 건국대학교 1978 學術誌 Vol.22 No.1
For an increase of body weight, feed efficiency, and profitability of Korean cattle fattening through the effective fattening of the Korean cattle concentrates with an addition of 0.05 mg of cobalt for test plot I, 0.05 mg of cobalt for test plot II 0.10 mg, and 0.15 mg for test plot III, per kg of concentrate were given to sampled cattle. Experiments were designed to repeat control plot and three test plots (I, II, III) five times far 140 days on the 20 cattle sampled by completely randomized design. The results of the experiments are presented in the following. I. Amount of Body Weight Gain The average weight gain per head, and weight gain per day are commonly highest in the test plot II (132.6 kg ㆍ 0.92 kg), second in the test plot I (128.5 kg ㆍ 0.91 kg), third in the test plot III (121.1 kg ㆍ 0.87 kg), and lowest in the control plot (120.4 kg ㆍ 0.87 kg). The rull hypothesis was accepted while there was no statistical significance between the test plots and the control plot, and also among the test plots. But the test plots with an addition of cobalt resulted in higher gain of body weigh comparing to that of the control plot. II. Amount of Feed Intake and Feed Effeciency The efficiency of concentrate required to increase on Kilogram of beef was highest in the test plot II 6.42 kg, second in the test plot I 6.53kg, third in the test plot III 7.00 kg, and lowest in the control plot 7.18 kg respectively. In case of flay and pellets the test plot I showed the highest weight gain, the test plot II, and III resulted in the same performance, and the control plot was the lowest one in the gain of body weight. There was no statistical significance between the test plots and control plot, and among the test plots. Thus, the test plots with ail addition of cobalt comparing to the control plot resulted in a higher feed efficiency. III. Profitability Feed costs required to increase one Kilogram of fresh meat was 636 casts won in the test plot II, 641 won in the test plot I, 685 fresh meat won in the test plot III, and 703 won in the control plot respectively. While there was no statistical significance with profitability, the test plot with an addition of cobalt required lower feed cost increase one kilogram if fresh meat comparing to the control plot. IV. Fattening outcome Of the sampled 20 cattle 18 cattle were slaughtered after 6 days from the last day of the tests. The carcass rate of the sloughtered cattle was 56.4 percent in the test plot II, 55.0 percent in the test I, 54.8 percent in the test plot III, and 54.6 percent in the control plot. There was no statistical significance with the rate of carcass, but the test plats with an addition to cobalt presented a little higher carcass rate comparing to the control plot. It was rather difficult to distinguish meat color with eyes, but comparing to the control plot the meat color of the test plots was heavily red.
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尹熙燮,李基萬,吳世正,崔炳奎,李廣田 건국대학교 1974 學術誌 Vol.17 No.1
Carcasses from thirty (male : 12, female: 18) Korean Cattle were used to study the yield of meat cuts by the conventional cutting method as well as the American method. The dressing percents and correlation cofficients among meat cuts in a carcass were also investigated. The regression equations for predicting the total carcass lean from meat cuts is of particular importance in studies of carcass evaluation. Physical separation of the entire carcass is laborious and costly. Therefore, a simple indirect method for predicting total carcass lean would be extremely useful. The regression equations of total carcass lean on certain meat cuts were calculated in this study. Dressing percents from male and female carcasses were 49.64%, 48.37% respectively. Comparing the dressing percents of Korean cattle with idealized beef cattle, the percents from Korean cattle were much below those from beef. The percents of round, chuck, and shortloin from Korean cattle were also lower than those of beef cattle. Correlation coeffidient between carcass and lean weight was highly significant. Correlation coefficients among meat cuts were highly associcted with carcass weight. Therefore, the results of this study indicate that using the regression equations is possible for predicting total lean from certain meat cuts.
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최한규,김남원,최용묵,윤희섭 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B
Normally at a flood season the operation of the dam depends on a short range weather forecast that makes many difficulties of the management at a dry season. It is needed to study the pattern of the long period rainfall. The concept of PMP(Probable Maximum Precipitation) was used for designing dam. From the concept, this study is applied the concept of monthly probable maximum precipitation for operating dam. It can be possible to let us know the appropriateness of a limiting water level at a rainy season. For the operation of dam at a dry season this study can predict roughly the flood season's pattern of precipitation by month or period, therfore the prediction of precipitation can rise efficient operation of a dam.
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