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부로일러 종계 (種鷄) 숫닭의 사료 섭취량이 단백질 및 에너지 이용에 미치는 영향
고태송(T . S . Koh),원병수(B . S . Won),한성준(S . J . Han),정태영(T . Y . Chung),맹원재(W . J . Maeng) 한국축산학회 1993 한국축산학회지 Vol.35 No.1
To develop methods for simultaneous determination of protein and energy utilizability, interrelationships between diet intake levels and urinary nitrogen (UN), urinary energy (UE), fecal nitrogen (FN) and fecal energy (FE) were investigated in 65 week-old 5.3-6.0 ㎏ of 5 broiler breeder cockerels. True digestibility (TD) and biological value (BV) of protein, net protein utilization (NPU), and true digestible (TDE), biological value (BVE) and bioavailable (BEU) energy utilization were calculated. As diet intake was increased, the excretion of uric acid, ammonia, urea, FN, UN, FE and UE were increased gradually. Ommiting starved bird, the regression of FN (r²=0.998, n=3), UN (r²=0.990, n=3), FE (r²=0.9999, n=3) and UE (r²=0.998, n=3) on diet intake (g/day) was linear. Endogenous urinary nitrogen (EUn) and energy (UEe) estimated by the y-intercepts of regressions were significantly (p$lt;0.05) lower than those in fasted birds although significant difference on metabolic fecal nitrogen (MFn) and energy (FEm) were not found. TD. BV, NPU, TDE, BVE and BEU calculated by the values by regression showed very stable values among levels of feed intake, which were reflected by the stable FN-, UN-, FE- and UE-diet-derived by regression. Also BV and NPU calculated by regression were significantly (p$lt;0.05) lower than those in fasted bird. The results indicated that utilization of protein and energy in diet can be obtained by metabolic fecal and endogenous urinary nitrogen or energy determined simultaneously. Protein and energy utilization determined by regression seems more stabel and more realistic than those determined with fasted birds.
한면수(M . S . Han),한성준(S . J . Han),김영진(Y . J . Kim),황성구(S . K . Hwang),고태송(T . S . Koh) 한국축산학회 1991 한국축산학회지 Vol.33 No.9
In order to investigate an effect of domestic barley on the carcass characteristics of pigs, three way cross bred (Landrace × Large white × Hampshire) pigs fed on a commercial diet until about 76㎏ were allotted to 20 pigs per pen and three pens per diet. And then they fed on basal diet and diets in which 10%(l0% barley diet) or 20%(20% barley diet) of the domestic barley substituted for yellow corn and soy bean meal of the basal diet during 38 days of experimental feeding for finishing period. Digestibility of nutrients and energy of diets were measured. And dressing percentage, loin eve area, backfat thickness at site of 7th, 10th and last ribs and amount of lean meat of carcass were measured on 45 pigs chosen randomly by 5 pigs per pen after experimental feeding. During experimental feeding period body weight gain and feed conversion did not show significant differences among pigs fed diets of basal and 10% barley, while pigs fed 20% barley diet tended to decrease body weight gain and worsened feed conversion. Pigs fed diets containing 10% or 20% barley showed the increased digestibilites of crude protein and nitrogen-free extracts. But digestibility of crude fiber in pigs fed 20% barley diet decreased. Basal diet contained 3.001 Meal DE per ㎏ dry matter, and 10% barley diet and 20% barley diet contained 3.252 and 3.240 Meal, respectively. Also digestibility of energy was heightened significantly(p$lt;0.05) in diets containing barley compared with that in basal diet. Dressing percentages, and lean meat percent tended to be high in pigs fed 20% barley diet compared with those of pigs fed basal and 10% barley diets. Average backfat thickness of pigs fed 20% barley diet was 2.59 ㎝ which was clearly thinner compared with 2.82 and 2.73 ㎝ of pigs fed basal and 10% barley diets, respectively. The results indicated that pigs fed diets containing 20% of the domestic barley increased dressing percent, loin eye area and lean meat percent, and decreased backfat thickness compared with those of pigs fed basal deit. It was suggested that the domestic barley will possibly improve the market carcass quality of pigs.
측면충돌시 최적의 PADDING 및 AIRBAG 설계를 위한 해석적 방법
이주영(J.Y.Lee),이인택(I.T.Lee),한성준(S.J.Han),박관흠(K.H.Park) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.11_2
Generally, there are two analysis tools in crash simulation, which are F.E.M code and Multi-Body Dynamics code. The analysis using F.E.M code needs much computing hours. The analysis using Multi-Body Dynamics code needs the experimental data of components. This study presents the coupling method to compensate the limitations of those analysis methods. Using the coupling method, the optimization is done in the padding and the side airbag system. MADYMO and PAM-CRASH are used in this study.<br/>
병아리의 지질축적과 발열량에 미치는 실제 수준의 오크라톡신 A 로 오염된 사료 급여의 영향
고태송(T . S . Koh),한성준(S . J . Han) 한국축산학회 1991 한국축산학회지 Vol.33 No.1
In order to investigate effects of diet contaminated by concentration of ochratioxin A(OA) similar to those found in commercial feeds on energy and protein metabolism of animals, 18 days old White Leghorn male chicks were fed the experimental diets containing 0.0(control), 0.5, 1.0 and 2.0㎍ of OA per gram diet for the 10-day experimental feeding period. Then carcass composition was determined at the initial and final days of experimental feeding for the calculation of heat production(HP). Daily gain and feed efficiency(gain/ feed) were decreased gradually (p$lt;0.05) as the levels of OA were highered. The OA did not affect MEn value of diet, contents of uric acid or other protein catabolites in excreta and availability(true digestibility × biological value) of protein. But daily retention of lipids(g) and energy (kcal / kg^0.75)were reduced according to the increase of OA levels(p$lt;0.01) as regression equations of y=0.872e ^2822x(r=-0.909, n=20) and y=63.46e ^0.1304x(r=-0.812, n=20), respectively. And MEn intake and HP per kg^0.75 and HI of birds fed OA were higher(p$lt;0.05) than those of birds fed uncontaminated diet. The results indicated that birds fed OA dissipated more energy and acumulated lower lipids compared with those of birds fed uncontaminated diet.
3차원 스캐너의 측정 자동화를 위한 수직 다관절로봇의 역기구학 해석
육경환(G. H. Yuk),한성준(S. J. Han),양현석(H. S. Yang),장민호(M. H. Jang) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
As 3D scanner develops, it can be used in measurement. To accomplish complete 3D measurement, the scanner has to view different sides of the target. It can be done by moving the scanner and fix it at every measuring point. By human, it would take so much time. However, by using robot, measuring time can be reduced and the procedure can be automated. It is suitable for 6R serial manipulator to do this kind of work in which the scanner should go any position in arbitrary orientation. We did inverse kinematics analysis by analytical and graphical methods. Then, we compared two methods.