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베타아고니스트 ( GAH 034 Suilin ) 의 사료내 첨가급여가 돼지의 등지방두께와 도체형질에 미치는 영향
김정우,김춘수,박근식 ( J . W . Kim,Chun . S . Kim,K . S . Park ) 한국축산학회 1990 한국축산학회지 Vol.32 No.11
The reduction properties of backfat thickness PI, P2, P3 and Pm in Suilin treated group were 14.3%, 15.5% 15.6% and 15.1% in compared with those of control group, respectively. These results are found to be more noticeable than that of Wood et al. $lt;10.9% : P2) and somewhat comparable to that of Kilpatrick (18.8%: P2). The increased rate of backfat thickness P1, P2, P3 and Pm in Suilin treated group during whole period of this experiment were -28.9%, -23.4%, -30.4.%and -27.6% in compared with those of control gorup, respectively. The effect on growth rate does not seem to be significantly influenced by treatment. However, some effects of treatment on carcass quality were found. Suilin treated pigs have higher lean% and ham% than untreated pigs. In addition, there seem to be a tendency that the treated pigs have better results on killing-out proportion, fat% and chilling loss%, even though there are little statistically significant differences. As a conclusion, the general effects of Suilin are to reduce backfat thickness while having some additive effects on carcass quality and little effect on growth rate.
김정우,김현진,박희용,Kim, J.W.,Kim, H.J.,Pak, H.Y. 대한설비공학회 1992 설비공학 논문집 Vol.4 No.4
This paper addresses performance analysis of a reciprocating compressor. A computer simulation model has been developed to predict and estimate the compressor performance. Instead of using ideal gas equations, real gas equations are used in describing the state of gas. The compressor simulation model consists of a cylinder control volume, suction system and discharge system. Conservation laws of mass and energy are applied to the cylinder section only, The suction and discharge system are described by the Helmholtz resonator modeling. Some of input data required for the simulation have been obtained from experiments. These experimentally obtained input data are effective flow area, effective force area and dynamic characteristics of valves. Simulation results of real gas equations have been compared with those of ideal gas equations. It has been found that the simulation with real gas equations yields lower cylinder temperature and heat transfer compared with those of ideal gas equations. Differences in pressure, mass flowrates, valve motions and gas pulsations are found quite small.
베타아고니스트 ( GAH 034 Suilin ) 의 첨가급여가 돼지의 성 및 교배 계통에 따른 등지방의 두께와 성장율에 미치는 효과
김정우,김춘수,박근식,권만중 ( J . W . Kim,C . S . Kim,K . S . Park,M . J . Kwon ) 한국축산학회 1990 한국축산학회지 Vol.32 No.12
It appears that the reducing effects of Suilin (GAH / 034) in the backfat were partially influenced by bred line and/or sex: The reducing effect of Suilin on P1-backfat in LYD pig is markedly higher than those of LYY pigs in both sex, whereas in case of P2-backfat, there were little effect of LYD male pigs in com-ared with LYY male pigs. However, the positive effect of Suilin at P3 -backfat were not affected by sex and brad line. The effect of Suilin on growth rate was clearly negative in case of male LYD pigs. But, the growth rate did not seem to be significantly influenced by treatment in general.
김정우,김현진,박희용,Kim, J.W.,Kim, H.J.,Park, H.Y. 대한설비공학회 1992 설비공학 논문집 Vol.4 No.3
This paper presents numerical and experimental methods of investigating dynamic characterisics of reed valves of hermetic reciprocating compressors. For the natural frequency, two different techniques have been tried : microphone method and strain gage method. In the microphone method, acoustic pressure signals from excited valves have been analyzed, while signals of tiny strain gauge attached on the reed valves have been utilized in the strain gage method. The empirically determined natural frequencies have been compared to the ones calculated by finite element method. Reasonably good agreements between the experimental and numerical results have been found, implying that the natural frequencies of reed valves could be obtained by FFM alone with enough accuracy.
소의 Immunoglobulin G1 에 대한 단 Clone 성 항체의 생산에 관한 연구 2 . 소의 Immunoglobulin G1 에 대한 단 clone 성 항체의 생산
김정우,여상건,이효종 ( J . W . Kim,S . G . Yeo,H . J . Lee ) 한국축산학회 1986 한국축산학회지 Vol.28 No.12
Spleen cells from Balb/c mice immunized with bovine IgG1 heavy chain were successfully fused with SP2/0 mouse myeloma cells and culture fluid of the hybrid cells were tested for specificity by enzyme-linkers immunosorbent assay. Of 48 initial hybrid clones, 21 produced antibodies to bovine IgG1. After cloning and rectoning, 2 (G1D2, G1H12) of these hybrid clones retained specificity and were grown in mass culture. The monoclonal (anti-bovine IgG1) antibody G1D2 and G1H12 were reacted to bovine IgG1 specifically in their dilution of more than 100- and 10-folds, respectively.
김정우 ( J . W . Kim ) 한국축산학회 1986 한국축산학회지 Vol.28 No.10
This experiment was conducted to investigate the development of blood serum IgG levels in Korean Native Goat from one month to three years of age anti factors affecting their IgG levels. The results obtained are summarized as fellows: 1. Blood serum IgG levels in Korean Native Goat were lowest at three months of age (8.9±1.5㎎/㎖) and increased thereafter until three years of age (18.6±1.5㎎/㎖). 2. Serum IgG concentration among ages dhowed significant differences (p$lt;0.05): IgG concentration of adult goat was higher than that of younger goat. 3. No significant variation was found to be associated with the sex, but male goat showed higher IgG concentration than female did. 4. During the stage of pregnancy, serum IgG levels were decreased steadily from the beginning of the pregnancy (19.5㎖1.1 ㎎/㎖) to the stage of shortly before parturition (15.1㎖3.0 ㎎/㎖).