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양돈 급여에 적합한 원형베일 사일리지 해체·세절·연화 일관시스템 연구 (I)
홍종태,김혁주,유병기,현창식,김성기,유지수,홍영신,서형덕,Hong, Jong-Tae,Kim, Hyuck-Joo,Yu, Byeong-Kee,Hyun, Chang-Sig,Kim, Sung-Kee,Yoo, Ji-Soo,Hong, Young-Sin,Seo, Hung-Dug 한국축산환경학회 2013 한국축산시설환경학회지 Vol.19 No.1
Currently, there was no producing system of TMR for pig feeding in Korea. In this study, we examined unrolling, cutting, and softening for the round bale silage. We designed and developed the prototype system of round bale silage for pig feeding. Unroll method were lower chain conveying and upper belt conveying which includes an hydraulic vertical fodder knife. Gathering and cutting method were rotating auger and flywheel which have 10 cutters, input roller of 280 rpm, and cutter rotating speed of 1,750 rpm. Softening device was rotating hammer in inclined cylinder adjustable to $25^{\circ}C$ and rotating speed up to 1,300 rpm. The prototype system was integrated working for unrolling, cutting, and softening. We found that when the round bale silage in unrolling apparatus cut length of 20 cm to input cutting apparatus, the cutting performance was well in continuous working up to input rate of 1,000 kg/h, the softening apparatus was working well.
홍종태,최상경,김기표,Hong, Jong-Tae,Choe, Sang-Gyeong,Kim, Gi-Pyo 한국시스템엔지니어링협회 2005 시스템엔지니어링워크숍 Vol.6 No.-
전차탄의 철갑기술과 전차의 방호기술의 경쟁적인 연구개발로 성능이 지속적으로 발전되면서 전차방호면에서는 피탄되기전에 탄을 인식하여 파괴하는 능동파괴장치로,대전차 기술면에서는 취약한 전차의 상부를 발사후 망각개념의 지능탄으로 타격하는 기술로 발전되고 있다. 본 논문에서는 군사선진국들이 개발중인 전차포 지능찬의 특성을 조사하고 새로운 체계모델을 설정하여 비교상쇄연구를 수행하였으며, 향후 무기체계로의 가용성을 분석하였다.
RFID이용 전자식 모돈 개체별 액상급이기 개발(1) -RFID를 이용한 모돈 액상급이기 제작 및 성능시험-
김혁주 ( Hyuck Joo Kim ),홍종태 ( Jong Tae Hong ),유병기 ( Byeong Kee Yu ),김상철 ( Sang Cheol Kim ),최규홍 ( Kyu Hong Choi ),장흥희 ( Hong Hee Chang ) 한국농업기계학회 2012 바이오시스템공학 Vol.37 No.6
Purpose: In EU, the animal welfare regulations are strengthening. Also, in Korea, for strengthening of animal protection laws, animal welfare farm certification scheme is being prepared to enforce. To get the certification of animal welfare farm, especially for sows, individual specific feeding in sow group is necessary in accordance with the animal welfare regulation. Also, liquid feeding is reported to be more effective for farrowing as well as dry sow. Therefore, in this study, a electronic liquid sow feeder using RFID which could be fed to farrowing sow simultaneously is developed. Methods: We manufactured a prototype of appropriate elements which were evaluated in the preliminary test for selecting RFID tag, supply pump, mixing type, etc. With the prototype, the performance test for liquid feeding gilt was done in group raising training barn. Results: The performance test result shows the C.V.(coefficient of variation) of liquid mixing and feeding is 0.77∼1.97% and 2.4∼5.3%, respectively, which means the system could feed sows uniformly. The feeding time of pneumatically activated ball valve is 2 seconds per 0.9 kg of liquid feed. The eating time for gilt were 65 seconds in average. Conclusions: The prototype could feed sow uniformly, and deliver the liquid feed 9 times for a sow continuously. Also, total eating time for a sow was 18 minutes in one visit to the prototype of feeding station.
돼지증식성회장염 신속검진 기술개발(1) -돼지 분변에서의 로소니아균 검출을 위한 항원, 항체 준비-
김혁주 ( Hyuck Joo Kim ),홍종태 ( Jong Tae Hong ),유병기 ( Byeong Kee Yu ),김기영 ( Gi Young Kim ),이진주 ( Jin Ju Lee ),김석 ( Suk Kim ) 한국농업기계학회 2012 바이오시스템공학 Vol.37 No.6
Purpose: Porcine proliferative enteropathy(PPE), caused by the obligate intracellular bacterium Lawsonia intracellularis, is a widely distributed disease throughout the world causing substantial economic loss. The bacterial pathogen invades the intestinal epithelial cells which causes hyperplasia of the infected cells and leads to the process of disease pathogenesis. For diagnosing PPE in a pig farm in earlier stage, a rapid diagnosing test equipment is needed for farmers. To test the equipment appropriately, we prepare the samples and antibodies for rapid detecting the Lawsonia intracellularis in pig feces. Methods: To prepare the PPE infected samples, we sampled PPE suspected pig feces in a pig farm. To manufacture a anti-Lawsonia intracellularis antibody for capturing the Lawsonia intracellularis, the rabbit-anti LsaA synthetic peptide polyclonal antibody was inoculated to rabbits. To select the couple of antibodies which is most well sandwiched with the bacteria, ELISA test was done with PPE infected ileum samples. Finally, to verify the PPE infected feces which would be used to test the rapid kit, PCR test was done on the sampled PPE suspected feces Results: The rabbit-anti LsaA synthetic peptide polyclonal antibody is developed, and is verified to capture the bacterial well through the fluorescence antibody test. Also, we found that the monoclonal antibody and the polyclonal antibody could be used as couples for sandwiching the bacteria. Finally, through the PCR test for samples of pig feces, we could prepare the 150 PPE positive samples and SO PPE negative samples. Conclusions: The manufactured polyclonal antibody and the imported monoclonal antibody could be used to capture the bacteria using the sandwich techniques. Also, the prepared PPE infected negative and positive samples could be used to test the performance of the rapid kit to capture the bacterium Lawsonia intracellularis.