Effects of dietary supplementation with probiotic CS-A on performance in broiler chickens

Seong Soo Kang1*, Se Eun Kim, Ara Go, Kyung Mi Shim, Chun Sik Bae, Chang Jong Moon, Sung-Ho Kim, Jong-Choon Kim, Jin-Cheol Yoo, Seung Sik Cho 충북대학교 동물의학연구소 2012 Journal of Biomedical and Translational Research Vol.13 No.3

Probiotics, enzymes, organic acids, oligosaccharides, antioxidants, and other functional materials are actively being explored as alternatives to antibiotics. Probiotics include live beneficial microorganisms that colonize the intestinal tract and competitively inhibit attachment and growth of harmful microbes. Probiotics also increase feed efficiency by assisting in nutrient absorption and digestion. The current study was conducted in order to evaluate the effect of a new probiotic, CS-A, as a dietary supplement of a fermented product on growth performance, feed intake, and feed conversion efficiency in broiler chickens, and to evaluate its value as an alternative for antibiotics used as a feed additive. Antibacterial and anti-inflammatory effects of CS-A were investigated in vitro and the in vivo effects of a constant concentration of supplemented CS-A on growth rate and feed efficiency were evaluated. In addition, the safety of CS-A was assessed by examination of common symptoms and mortality. Determination of minimal inhibitory concentration revealed an excellent antibacterial effect of CS-A. Cytotoxicity was low and anti-inflammatory effects were achieved at the effective concentration of CS-A. Supplementation with 0.1% CS-A resulted in a feed efficiency score of 1.84 in broilers, compared to 2.00 in the control group. There were no adverse clinical findings, necropsy findings, hematology, and altered serum biochemistry parameters, and no mortality. Thus, it is concluded that CS-A is safe and effective as a feed additive.

Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

黃土에서 分離한 顔料에 對한 硏究

姜淙熙,呂壽東 慶北工業專文大學 1966 論文集 Vol.3 No.-

차량용 와이퍼 시스템 프레임의 형상 최적설계

강경수,이종호,우호길 충남대학교 공업교육연구소 2002 論文集 Vol.25 No.1

In this study, a shape optimization for a frame of a vehicle windshield wiper system is presented. This study investigated how to optimize a shape and minimize mass(volume) and the number of parts with sufficient strength of a frame instead of a conventional structure. The dffectiveness of this analysis procedure is expected to reduce development lead time &cost actually.

셔틀 프로토콜의 이론적 고찰

강현중,왕종수 瑞逸大學 1998 論文集 Vol.16 No.-

We prove the efficient technique(SHUTTLE polling method) for management traffic generated by the polling method. Because generating rate of management traffic varies with management behavior, the problem of current polling method is inferred from the basis of real data. For the purpose of improving the high performance of shuttle method, we compare and analyze existing

한국인 태아 및 사산아에서 얼굴신경에 대한 형태학적 연구

강양수,김종중,김복,정상봉,문영민,설경수,정윤영 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.3

It is critical that the accurate anatomy of the facial nerve IS known for uncomplicated successful facial surgery. Such an operation is hazardous because of the intimate relationship between the facial nerve and the expressional muscles. It is hoped that such basic information will be helpful to those who treat conditions involving the facial region. In order to define the detail of this relationship, many studies have been undertaken on dissected adult specimens. This study was based on Korean fetus and stillborn infant cadaveric dissections, and describes anatomical variations of the peripheral branches of the facial nerve that pose a potential danger in a number of surgical procedure on the face. The branching patterns were classified into six types: the frequencies of occurrence were: type I, 4.9%; type II, 24.4%; type III, 34.1%; type IV, 19.5%; type V, 12.2%; and type VI, 4.9%. Types II, III and IV together accounted for almost 80% of the specimens. In the discussion we compare the results of the present study with those of others and try to clarify the anatomical characteristics of the facial nerve in infants, which demand that special attention be paid to the avoidance of injuries during facial surgery.

판막 질환에서의 심근 섬유화 : 심근 조직을 이용한 형태학적 연구 및 혈청 생화학적 지표의 분석

강수진,박덕우,송재관,박경민,송종민,강덕현,한기훈,송현,이재원,주석중,송명근,김정선 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

탈취 필터의 성능에 미치는 첨가제의 영향

강종봉,문종수 경남대학교 환경문제연구소 1996 환경연구 Vol.18 No.-

Deodorant filters were fabricated using activated carbon, and the effects of additives on the efficiency of filters were investigated. Binder was needed for forming of filters, but the deodorization efficiency was decreased abruptly with increasing binder content, and the deodorization efficiency was increased with oxidizer content to a certain amount but was decreased beyond 10 wt.%. It was found that the efficiency of deodorization was dependent on the surface area of the particles and oxidizers which can oxidize the target gas. Specially the addition of copper oxide, manganese oxide, and sodium carbonate made the deodorization velocity much faster than monolithic actiated carbon filter. They were also effective in increasing the deodorization ability of filters. Filters with inorganic salt washed and dried under vacuum after infiltration showed good performance.

勤勞者의 離職意思에 企業福祉가 미치는 效果에 관한 硏究

姜聲浩,姜鍾秀 大邱大學校 社會科學硏究所 1998 社會科學硏究 Vol.4 No.3

본 연구는 생산성 향상의 저해요인이자 기업경영의 중요한 애로점으로 인식되고 있는 근로자의 이직의사에 기업복지가 미치는 효과를 분석한 것으로써, 다양한 이직의 접근방법과 선행연구의 분석결과 도출된 연구문제를 중심으로 실증적으로 검증하였다. 대구지역 869명의 근로자로부터 회수된 설문으로부터 이직의사에 영향을 미치는 변수들에 관한 다중회귀분석 결과 기업복지의 만족도/수준이 높을수록 근로자의 이직의사는 낮은 것으로 조사되어 연구가설을 지지하고 있다. 따라서 이러한 연구결과는 그동안 이직연구에서는 도외시되어온 기업복지의 효과성을 인정하는 것으로, 개별기업의 이직관리에 실질적인 도움이 될 것이며 또한 기업복지 활성화의 유용한 이론적 기초가 될 것이다.

골격성 Ⅲ급 부정교합자에서 상악골 전방 이동술 후 코의 변화에 관한 연구

강은희,박수병,김종렬 대한치과교정학회 2000 대한치과교정학회지 Vol.30 No.5

본 연구는 골격성 Ⅲ급 부정교합 환자에서 상악골 전방이동 수술 후 야기되는 코의 형태변화에 대해 연구하고 이를 예측할 수 있는 요소를 찾아 교정-악교정 수술 복합 치료계획의 수립과 결과의 예측에 이용하고자 시행되었다. 부산대학교병원 치과진료처 교정과에 내원하여 골격성 Ⅲ급 부정교합으로 진단되어 술전 교정치료를 받고 Le Fort I 골절단술로 상악골의 전방 이동시키는 동시에 하악골을 후방 이동시킨 남녀 성인 환자 25명을 대상으로 하였다. 이들의 수술 전, 후 측모두부규격방사선사진과 정모 및 측모 안면사진을 계측, 분석하여 다음과 같은 결과를 얻었다. 1.상악골 전방이동에 따른 비첨의 수직적 위치 변화는 상관성이 높았으며 ANt, SNt에서 A point의 전방이동에 의해 β0는 각각 0.228, 0.257로 나타났다. 2.상악골 전방이동에 따른 비첨의 수평적 위치변화는 상관성이 높았으며 ANt, SNt, Sn point에서 Anoint의 전방이동에 의해 β0는 각각 0.484, 0.431, 0.806으로 나타났다. 3.상악골의 전방이동에 따른 비익부의 확장정도는 A point의 전방이동에 의해 0.002의 β0를 나타내었으나, 임상적으로 유의한 변화는 없었다. 4.수술 후 비첨의 수직적 및 전후방적 위치변화를 예측하는 지표로 사용된 ADV, DRI, Prominence of nose, Pre-OpCA 중 ADV 만이 설명변수로서 유의성이 있었다. The purpose of this study was to evaluate the amount and interrelationship of the soft tissue of nose and maxillary changes and to identify the nasal morphologic features that indicate susceptibility to nasal deflection in such a manner that they would be useful in presurgical prediction of nasal changes after maxillary advancement surgery in skeletal Class III malocclusion. The sample consisted of 25 adult patients (13 males and 12 females) who had severe anteroposterior skeletal discrepancy. The patients had received presurgical orthodontic treatment. They underwent a Le Fort I advancement osteotomy, rigid internal fixation, alar cinch suture and V-Y advancement lip closure. The presurgical and postsurgical lateral cephalograms and lateral and frontal facial photographs were evaluated. The computerized statistical analysis was carried out. Soft tissue of nose change to A Point change ratios were calculated by regression equations. The results were as follows : 1.The correlation of maxillary hard tissue horizontal changes and nasal soft tissue vertical changes were high and the β0 for soft tissue to ADV were 0.228 at ANt, 0.257 at SNt. 2.The correlation of maxillary hard tissue and nasal soft tissue horizontal changes were high and the β0 for soft tissue to ADV were 0.484 at ANt, 0.431 at SNt, 0.806 at Sn. 3.The correlation of maxillary hard tissue horizontal changes and width changes of ala of nose were high and the β0 for alar base width ratio to ADV were 0.002. 4.The DRI, Prominence of nose, Pre-Op CA is not a quantitative measure that can be used clinically to improve the predictability of vertical and horizontal nasal tip deflection. In this study, increases in nasal tip projection and anterosupenor rotation occur when there is an anterior vector of maxillary movement. These nasal changes were quantitatively correlated to magnitude of maxillary(A point) movement.