Application of Artificial Insemination Technology for Dairy Breeding in Mongolia

Hyun‐Tae Jo,Jong‐In Jin,Seong‐Su Kim,Byung‐Hyun Choi,Tumor Baldan,Jung‐Gyu Lee,Yun‐Shik Kim,Sam‐Churl Kim,Il‐Keun Kong 한국동물생명공학회(구 한국동물번식학회) 2011 발생공학 국제심포지엄 및 학술대회 Vol.2011 No.1

This study was focused on improvement of milk production in Mongolia dairy industry by artificial insemination (AI) technology, of which was supported from ODA project of KOICA in Republic of Korea. The study was started from January 2009 to present and 3rd years in this year. So, all data, especially synchronization and pregnancy of dairy cows (Holstein) will be summarized in final result in this year. For synchronization, total 81 dairy cows selected from 4 private farms that were 38, 30, 8 and 5 in Undarmal milk, Onjin (Enkhbayer), Jargalant, and BRM School, respectively. All the dairy cows were injected intramuscular (IM) of 5 ml PGF2α in the vulva and detected estrus 2 to 3 days after PGF2α injection. Total 78 out of 81 dairy cows (96.3%) were detected estrus by only 1 time injection of PGF2α. The dairy cows that were induced estrus, inseminated with 0.5 ml dairy frozen semen by conventional AI techniques. The pregnancy diagnosis of the AI dairy cows was detected by uterus palpation after 60 days of insemination. Total 75 from 78 inseminated dairy cows (90.1%) were diagnosis pregnant. The estrus induction and pregnant rate were very effective using PGF2α injection and conventional AI techniques in Mongolia dairy cow. The results indicated that AI after estrus induction in Mongolia dairy cows could be applied to dairy breeding technology to improve the breeding efficiency and milk production.

콘크리트 構造物의 混合모드 龜裂傳播모델(第1報)

陳致燮,張熙碩,崔顯泰,嚴長燮 부산대학교 공과대학 1989 硏究報告 Vol.38 No.-

This paper attempts to extract the crack tip stress intensity factors and to make a crack propagation model under mixed mode, from the finite element analysis of the concrete structures. In finite element analysis, all elements are initially assumed to be conventional quadratic isoparametric elements and are replaced by 6 node triangular singularity elements in the crack tip zone only. The stress intensity factors and the angle of propagation are carried out by displacement correlation technique and maximum circumferential tensile stress theory respectively. At the first part in a series of two papers, some numerical examples about the concrete SENB and DISK are presented to illustrate the practical effectiveness of the technique.

퍼지 전문가 시스템을 이용한 BLDC 전동기의 자동조정 PID 속도제어에 관한 연구

진광식,윤태성,권세현 國立 昌原大學校 産業技術硏究所 1998 産技硏論文集 Vol.12 No.-

This paper proposes the rule-based expert system with auto-turning of PID controller gain and shows the efficiency of fuzzy expert system for the speed control of BLDC motor. The PID controller gain tuned using RZN(refined ZN) formula to initial tuning and fuzzy expert system to subsequent tuning. The fuzzy expert PID control method proposed in this paper results in the reduction of overshoot, the rapid response and the robustness for disturbances and noise.

Thiamine결핍 유도후 쥐 전뇌의 성상교세포 Glial Fibrillary Acidic Protein(GFAP) 면역화학 활성도에 대한 변화

김승현,김희태,김주한,김명호,황세진,김명권,백태경 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

최대운동부하후 회복기중의 심박수·산소섭취량 변화와 유산소성 운동능력과의 관계 분석

김기진,박현,전태원 師範大學 體育硏究所 1988 서울大學校 體育硏究所論集 Vol.9 No.1

For the evaluation of cardiovascular function, aerobic capacity with VO₂max and AT(anaerobic threshold)have been used as a critical parameter. Also we expect that parameter during recovery can be used as a good one. The purpose of this study was to identify the relationship between maximal or submaximal aerobic capacity and the recovery rate of them. We studied with twenty seven subjects: 7 judoists, 10 long distance runners and 10 non-athletes. They were undergone a continuous incremented treadmill test from rest to all-out. Respiratory gas of each subjects was analyzed by using an automated respiratory gas analyzer, Ergo-Oxyscreen System (Erich-Jaeger Co.). As the data of heart rate, oxygen uptake at rest and during recovery made the log linear model with time, the gradient of recovery rate was calculated by the equation of simple regression with the time as independent variable. That equation is as follows; y=A+B.e?? ? y:HR or VO₂ ? A:expected value at rest ? B:maximum increment ? c:recovery rate The results of this study was; 1. There was a significant difference as the order of long distance runners, judoists, non-athletes' HR at rest, but there was no difference in the maximal HR. 2. Long distance runners had higher level of VO₂max(84.83ml/kg) and AT(80.03%) than the other two groups. 3. In the long distance runners group, the phase of VO₂recovery showed significant correlation with the other factors. 4. In judoists group, the phase of VO₂max recovery had significant correlation -0.79(p<0.05) with the maximal HR. 5. In all subjects, significant correlation was showed between AT, HR at rest and recovery of VO₂. In brief, maximal or submaximal aerobic capacity(VO₂max, AT etc.) had no correlation with the phase of HR recovery, but significant correlation with the phase of VO₂recovery in athletes. The results indicated that the recovery rate of oxygen uptake could be a critical index for evaluating the aerobic capacity.

대전공단지역의 대지중 독성 금속의 농도 분석

류영태,남병현,이진흥 忠南大學校 環境問題硏究所 1997 環境硏究 Vol.15 No.-

In spite of lower concentration of toxic metals in urban air, the magnitude of health risk associated with may not be smaller than that by other airborne hazardous pollutants. Especially, it has been expected that the risk from an industrial complex may be much higher by toxic metals including carcinogenic ones. However, unfortunately there has been few domestic research on the concentration profile and risk assessment of airborne toxic metals in such area. The reason may be that the final objective of studies performed before for our urban air was either source characterization or quantitative source estimation of suspended particulate matter and development of a receptor model. Thus, few investigation into the concentration distribution for toxic metals such as As, Be , Cr, Ni, Se, Sb and V has been done. Therefore, this research will focus on 2-year- analysis(twice or four times per month) by using ICP-MS and ICP-AES for the concentration of heavy metals in Taejon Industrial Complex. ICP-MS has much more excellent detection limits and reproducibility for many toxic metals than any other analytical technique. Total suspended particulates were collected on quartz fiber filters by a high volume air sampler. About 20 metal elements including 13 toxic ones were analyzed by ICP-MS and ICP-AES after the pretreatment of mixed acid extraction. As a part of the research, the following results for the period of from June to August, 1997 were summarized : (1) the geometric mean concentration of TSP was 87.28㎍/㎥ during the sampling period in the study area. The maximum was 114.16㎍/㎥ in the 4th week of August while the minimum was 47.97㎍/㎥in the first week of August; (2) much higher concentrations of Pb and Zn were noted among toxic metals and their geometric means were 288.31ng/㎥ and 153.47ng/㎥, respectively. The highest concentration of Pb was 570.99ng/㎥ in the 4th week of August while that of Zn was 279.03 ng/㎥ in the first week of June;(3) the concentration of each Ni, Mn, Zn and Fe was found to be highly correlated with that of TSP, which indicated the greater impact of man- made pollution in the area. The concentration of elements such as Al, Ca and Mg related to soil and road dust was found to be the highest in June and their correlation coefficients were estimated to be very high.

기포유동층 반응기 내에서 천연제올라이트를 사용한 아연계 탈황제의 반응특성연구

김동현,정용길,박노국,이종대,전진혁,류시옥,이태진 한국공업화학회 2003 응용화학 Vol.7 No.2

To improve attrition resistance, calcium oxide was added to durable ZZF sorbent. It was named ZZFCa sorbent. The reactivity of ZZFCa sorbent was investigated in the fluidized-bed reactor. The influencesof the sulfur capacity and the regeneration time for various fluidization velocities from 0.07㎧ to 0.20㎧ were investigated for 5-cycles. As a result, ZZFCa sorbent appeared the high sulfur capacity abouve 10gS/100g sorbent. The sulfur capacity of ZZFCa was maintained, although fluidization velocities increased.

면역억제제를 사용치 않은 동소성 간이식 실험견의 조직병리소견

조원현,최순옥,김인호,임태진,김성수,박준희,김우석,김현철,최규택,김진모,권건영 大韓移植學會 1994 Korean Journal of Transplantation Vol.8 No.1

팽이 톱밥 人工栽培時 培地微生物相의 經時的인 密度變化

배태웅,文炳周,辛元敎,宋模烈,李鉉旭,曺東進 東亞大學校生命資源科學大學附設 農業資原硏究所 1996 農業生命資援硏究 Vol.5 No.1

팽이 재배에 있어 가장 큰 문제 중의 하나는 雜菌에 대한 汚染, 특히 細菌에 의한 피해가 극심하므로 作業段階와 栽培過程 전반에 걸쳐 培地徵生物相의 經時的인 密度變化에 따른 雜菌의 培地內 流入時期를 조사하여 汚染菌의 發生消長을 알아보기 위해 現地農家에서 시험해 본 결과 接種후 培養室에서 菌絲培養을 시작한 5일후부터 細菌이 檢出되기 시작하여 菌긁기전까지 약 25일간 0.5∼3.1×10⁴cfu/g의 密度를 보였으나 經時的인 密度增加는 없었고, 菌絲培養이 끝난 뒤 菌긁기직후부터 細菌의 密度는 118.3×10⁴cfu/g으로 급격히 높아졌으며 子實體生育 기간동안에 시간이 경과함에 따라 密度가 현저하게 증가되는 경향을 나타냈다. 이는 培養室 안으로 흐르는 空氣를 통하여 甁內로 細菌이 流入되고 또한 菌긁기 직후 培地表面에 灌注하는 물과 加濕機에서 噴霧되는 물粒子가 細菌의 密度增加에 절대적으로 영향을 미치는 것으로 판단되므로 이때가 細菌性褐斑病菌에 感染되기 가장 용이한 시기로 생각된다. 眞菌은 菌긁기후 子實體生育 기간동안 1.17∼7.87×10⁴/g의 密度로서 菌絲培養 기간동안의 密度보다 다소 높게 檢出되었으나 대체로 經時的인 密度增加는 보이지 않았으며, 放線菌은 거의 검출되지 않거나 菌絲培養 후 5일째부터 다소 검출되기 시작했으나 밀도가 매우 낮았고 經時的으로도 증가되지 않았다. One of the most serious problem on the Enoki mushroom cultivation is the infection by pathogenicitic microorganisns, especially bacterial diseases causing serious economical losses in the mushroom production. It was carried out to find the tendency of the development of mushroom diseases by temporal changes and variation of the densities of media microflora through the cultivation periods and working stages in a mushroom farm. According to the results, several bacteria were detected from the fifth day after the inoculation and incubation of mycelium in the incubation room, and the density of bacterium was 0.5∼3.1×10⁴cfu/g media for 25 days before the inoculum-removing, although there was no increment of the density. Since the inoculum-removing after the spawn run, the density of bacterium was rapidly increased as 118.3×10⁴cfu/g media, and was significantly increased by time during the growth period of fruitbodies. It was hypothesized that it is the most suitable period for the pathogen infection because the bacterium might be introduced by the air in the incubation-room, and the increment of bacterium density might be affected by moisture supplied through watering or humidifier in the growing room after the inoculum-removing. Fungi were detected as the density as 1.17∼7.87×10⁴/g media and the density was slightly higher than that during the incubation period of hyphae, although there was no significant increment. Generally, the density of Actinomycetes was disregardfully low, or Actinomycetes were hardly ever found, although there was found some 5 days after incubation hyphae in few cases.

Pyridostigmine과 Neostigmine의 골격근이완계 길항 효과에 관한 연구

우현제,신용섭,김태관,이정은,최세진 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.2

This present study was undertaken to observe the effects of pyridostigmine and neostigmine of heart rate and it's antagonistic effect on pancuronium in 62 patients during general anesthesia. We obserived the effect of pyridostigmine and neostigmine with atropine and glycopyrrolate of heart rate, appearance of arrhythmia, time required for returning of spontaneous breath an sustained tetanic response and effect on the amount of secretion in oral cavity and trachea. The result are as follows: 1. The incidence of bradycardia was the highest in the group of atropine and neostigmine i. v. administration together, and the lowest in the group of glycopyrrolate and pyridostigmine i. v. administration together. 2. The incidence of tachycardia was the highest in the group of atropine and pyridostigmine i. v. adminstration together, and the least in the group of glycopyrrolate and pyridostigmine i. v. administration together. 3. Among the experimental cases, only one showed arrhythmia which is PVD. 4. The time required for returning of spontaneous respiration was 4.6-6.1 minutes range in all groups. 5. The group of glycopyrrolate administrated showed the greates antisialogue effect.