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      • 포조란, 유기태 크롬 및 옻사료의 급여가 거세한우 비육말기 산육특성에 미치는 영향

        송영한,조재희,장원진,김연욱,이성기,하재정,Li Shaogang 강원대학교 동물생명과학연구소(구 강원대학교 동물자원공동연구소) 2007 동물자원연구 Vol.18 No.-

        This study was to invesigate the effect of dietary supplemention of Pozzolan, Chromium-methionine chelate and rhus verniciflua stokes additive feed on growth performance and ultrasound live body characteristics in finishing Hanwoo steer. The animal used in the experiment were a total of 17 heads and weighted 577.09±35.90㎏. The experimental diets were basal hi-lok branded only concentrat and rice straw and 4% Rhus, 0.4% Cramin and 2% Pozzolan, which additice in basal diet. Individually average daily gain was tended to decreased with treated group. Ultrasound back fat thickness and marbling score were not significantly different(p<0.05)between teratment, however Pozzolan additive treat was showed tend to increased. Longissimus muscle area was showed tended to decreased in the Pozzolan treatment.

      • KCI등재

        골형태분석법과 micro-CT를 이용한 골소주 특성에 대한 연구

        송영한,이완,이창진,지정현,이병도,Song, Young-Han,Lee, Wan,Lee, Chang-Jin,Ji, Jung-Hyun,Lee, Byung-Do 대한영상치의학회 2007 Imaging Science in Dentistry Vol.37 No.1

        Purpose : The research was done to investigate the effectiveness of 2D bony morphometry and microstructure of micro-computed tomography (micro-CT) on the osteoporotic bony change. We performed the bone morphometric analysis of proximal femur in ovariectomized rabbits with BMD and micro-CT examination. Materials and Methods : Twenty-one female (Newzealand, about 16 weeks old, 2.9-3.4kg) rabbits were used. Three rabbits were sacrificed on the day when experiment began (Baseline). The remaining 18 rabbits were divided into two groups. One group was ovariectomized bilaterally (OVX) and the other animals were subjected to sham operation (Sham). Bone specimens were obtained from the right and left femur of sacrificed rabbits. At intervals of 1, 2, 3, 5, 6 months respectively, BMD tests were performed on the proximal femur by using PIXlmus 2 (GE Lunar Co. USA), 2-dimensional bone morphometric analysis by custome computer program and 2D/3D bone structure analysis by micro-CT (Skyscan 1072, Antwerpen, Belgium). Statistical analysis was carried out for the correlation between bone morphometry, micro-CT and BMD Result : BV/TV, Tb.Th, Tb.N of micro-CT parameters showed higher values in sham group than OVX group. N.Nd/Ar.RI, N.NdNd, N.NdTm, N. TmTm, PmB/Ar.RI, 3-D BoxSlope of 2D morphometric parameters showed higher values in Sham group than OVX group. The micro-CT parameters of Tb.Sp, Tb.N were statistically significant correlated with BMD respectively. Several 2D morphometric parameters were statistically significant correlated with BMD respectively. Conclusion : Several parameters of 2D bony morphometry and micro-CT showed effective aspects on the osteoporotic bony change.

      • KCI등재

        동물복지형 축산에 대한 소비자 인식 연구

        송영한,신동민,김희걸,노성훈,오송련,최종산,이종인 강원대학교 동물생명과학연구소(구 강원대학교 동물자원공동연구소) 2014 동물자원연구 Vol.25 No.2

        Food safety accidents like the occurrence of domestic animal diseases create an air of anxiety in consumers and increase their concerns about animal welfare. This study investigated consumer awareness of animal welfare livestock and attempted to look into the impacts of consumer awareness on the consumption of livestock product. It analyzed whether there was any difference in considerations of purchasing livestock products depending on awareness of animal welfare and consumption intention using Levene's equal variance test and independent sample t-test, and in order to inquire into the influence relationship of their considerations in purchasing livestock on animal welfare livestock product consumption intention, a binary logistic regression analysis was carried out. As a result of the analysis of consumer awareness, consumers were little aware of animal welfare while they were very interested in animal welfare and had the intent to consume livestock products produced following animal welfare. As a result of the analysis of the difference depending on the awareness and consumption intention of animal welfare using independent sample t- test, it turned out that there was no difference in considerations in purchasing livestock products between people who were aware of animal welfare and those who were not. In the difference depending on consumption intention, people who had the intent to consume animal welfare livestock products cared more than those who did not. Likewise, people who had the intent to consume animal welfare livestock products cared about the place of purchase, price, freshness, taste and quality more than those who were not. As a result of the binary logistic regression analysis of the two factors of internal property and external property of consideration in livestock products, it turned out that internal property only had impacts on consumption intention. Thus, considering the consumers' consciousness that they would like to be provided with safe livestock products relevant to items such as safety and reliability among their considerations in purchasing livestock products, the government and livestock industry should establish an appropriate marketing strategy for animal welfare livestock products.

      • KCI등재

        골형태분석법과 micro-CT를 이용한 골소주 특성에 대한 연구

        송영한,이완,이창진,지정현,이병도 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.36 No.1

        Purpose : The research was done to investigate the effectiveness of 2D bony morphometry and microstructure of micro-computed tomography (micro-CT) on the osteoporotic bony change. We performed the bone morphometric analysis of proximal femur in ovariectomized rabbits with BMD and micro-CT examination. Materials and Methods : Twenty-one female (Newzealand, about 16 weeks old, 2.9-3.4 kg) rabbits were used. Three rabbits were sacrificed on the day when experiment began (Baseline). The remaining 18 rabbits were divided into two groups. One group was ovariectomized bilaterally (OVX) and the other animals were subjected to sham operation (Sham). Bone specimens were obtained from the right and left femur of sacrificed rabbits. At intervals of 1, 2, 3, 5, 6 months respectively, BMD tests were performed on the proximal femur by using PIXImus 2 (GE Lunar Co. USA), 2-dimensional bone morphometric analysis by custome computer program and 2D/3D bone structure analysis by micro-CT (Skyscan1072, Antwerpen, Belgium). Statistical analysis was carried out for the correlation between bone morphometry , micro-CT and BMD Result : BV/TV, Tb.Th, Tb.N of micro-CT parameters showed higher values in sham group than OVX group. N.Nd/Ar.RI, N.NdNd, N.NdTm, N. TmTm, PmB/Ar.RI, 3-D BoxSlope of 2D morphometric parameters showed higher values in Sham group than OVX group. The micro-CT parameters of Tb.Sp, Tb.N were statistically significant correlated with BMD respectively. Several 2D morphometric parameters were statistically significant correlated with BMD respectively. Conclusion : Several parameters of 2D bony morphometry and micro-CT showed effective aspects on the osteoporotic bony change. (Korean J Oral Maxillofac Radiol 2007; 37 : 27-33)

      • KCI등재

        Drosophila melanogaster: a Model for the Study of DNA Damage Checkpoint Response

        송영한 한국분자세포생물학회 2005 Molecules and cells Vol.19 No.2

        The cells of metazoans respond to DNA damage by either arresting their cell cycle in order to repair the DNA, or by undergoing apoptosis. This response is highly conserved across species, and many of the genes involved in this DNA damage response have been shown to be inactivated in human cancers. This suggests the importance of DNA damage response with regard to the prevention of cancer. The DNA damage checkpoint responses vary greatly depending on the developmental context, cell type, gene expression profile, and the degree and nature of the DNA lesions. More valuable information can be obtained from studies utilizing whole organisms in which the molecular basis of development has been well established, such as Drosophila. Since the discovery of the Drosophila p53 orthologue, various aspects of DNA damage responses have been studied in Drosophila. In this review, I will summarize the current knowledge on the DNA damage checkpoint response in Drosophila. With the ease of genetic, cellular, and cytological approaches, Drosophila will become an increasingly valuable model organism for the study of mechanisms inherent to cancer formation associated with defects in the DNA damage pathway.

      • 방사오리의 접촉자극이 벼 생육 , 내도복성 및 수량에 미치는 영향

        송영한,고병대,중서양효,만전정치 한국환경농학회 2001 한국환경농학회지 Vol.20 No.4

        이상의 결과에서, 방사오리의 벼 접촉자극에 의해 줄기를 포함한 지상부 및 지하부의 건물중량은 유의적으로 증가하고, 벼초장, 간장 및 하위절간의 신장생장은 현저하게 억제되는 것이 인정되었다. 또한 오리 접촉자극에 의해 줄기의 좌절저항력은 크게 증가하는 반면, 휨 모멘트는 감소함을 보여 벼 도복억제 또는 도복경감의 효과가 시사되었다. 수량형질에 있어서 오리의 접촉자극에 의해 1이삭당 평균영화수, 등숙율 및 천림중은 대차 없었으나 유효분얼경수 및 포기당 이삭수의 현저한 증가가 인정되어 최종적으로 벼 수량의 증가를 볼 수 있었다. 금후, 본 연구에서 얻어진 결과를 바탕으로 방사오리의 접촉자극과 벼 생장과의 메커니즘을 보다 과학적으로 해명할 필요가 있고, 이를 위해서는 오리행동을 모방한 인위적인 접촉자극에 의한 영향 및 식물의 생장 반응에 영향하는 것으로 알려진 메치오닌, 에칠렌, 지베렐린 등의 식물생장호르몬과 접촉자극과의 관련성에 대한 추가적인 검증과정이 필요할 것으로 사료된다. This study was conducted to clarify the effects of physical stimulation to the rice plant by free-ranging ducks (Chinese native ducks) on growth, lodging resistance and yield of the rice plants in a rice-duck farming system. Two paddy fields were used for this experiment, one exposed to physical stimulation (PS) and the other with no physical stimulation (NPS). Fifteen days after ducks were introduced into the paddy plot, rice plants in the PS field were significantly (P<0.05) shorter than those in the NPS field. Measurements of lodging characteristics showed that, the 3rd internode was significantly (P<0.05) shorter in the PS treatment than in the NPS treatment, but neither the 4th internode length nor the center of gravity of the rice plants differed between treatments. The breaking strength of N₄ in PS rice was significantly (P<0.05) higher than in NPS rice, however the bending moment and the lodging index of N₃ (distance between fulcra - 5 ㎝) was significantly (P<0.05) lower in PS than in NPS. The number of panicles per ㎡ was significantly (P<0.05) greater in PS rice than in NPS, but there was no such difference in spikelet number per panicle, percentage of ripened grain or weight per 1000 kernels. Paddy rice yield per ㎡ in the PS treatment was significantly (P<0.05) higher than that in the NPS treatment.

      • SCOPUSKCI등재

        Kodak Insight 치과필름의 특성에 관한 연구

        송영한,이완,이병도,Song Young-Han,Lee Wan,Lee Byung-Do 대한영상치의학회 2003 Imaging Science in Dentistry Vol.33 No.1

        Purpose: To investigate the characteristics of the newly marketed, Insight dental X-ray film. Materials and Methods: Kodak Ultraspeed (DF-58), E-speed, Agfa Dentus M2, and Kodak Insight (IP-21) films were radiographed using a Trophy intra-oral radiographic machine. 10 step exposure times were prepared and each step exposure was monitored using a FH 40G (ESM Eberline Instruments) dosimeter for each of the 4 types of intra-oral film. All films were manually processed and the radiographic densities at 6 sites of each processed film were measured, and the characteristic curves of each of the 4 types intra-oral films were created utilizing these dosimetric data and radiographic densities, based on ISO 5779. The film contrast, speed, and base plus fog density of Insight film were compared with those of the 3 other films examined in this experiment. Results : E-speed film showed greatest average gradients followed by Insight film. E-speed and Ultraspeed film showed great average gradients at low density levels. Insight film showed the fastest speed followed by E-speed, Dentus M2 and Ultraspeed film. Dentus M2 film showed greatest base plus fog density level followed by Insight film. Conclusion : Kodak Insight film showed fastest film speed with comparable film contrast on characteristic curve.

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