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      • KCI우수등재

        능력검정 종료 종모돈의 경매가격에 영향하는 요인

        한광진,박영일 ( K . J . Han,Y . I . Park ) 한국축산학회 1985 한국축산학회지 Vol.27 No.6

        The economic importance of the three performance traits, average daily gain, feed efficiency and backfat thickness in determining the sale price of performance tested boars was evaluated on the basis of the data from the Korea Boar Testing Station. A total of 54 Duroc, 57 Yorkshire and 36 Landrace boars met qualifying requirements and were sold at the public auctions held each month from July, 1984 to December, 1984. The phenotypic correlations of sale price with average daily gain, feed efficiency and backfat thickness were 0.50, -0.40 and -0.34 in the Duroc, 0.53, -0.29 and -0.39 in the Yorkshire and 0.59, -0.28 and -0.35 in the Landrace. The coefficient of determination in the multiple regression analysis of sale price using the three performance traits as independent variables was 0.51 in the Duroc, 0.48 in the Yorkshire and 0.47 in the Landrace.

      • KCI등재

        한우의 체중과 체척치에 대한 유전모수의 추정

        한광진 한국동물자원과학회 2002 한국축산학회지 Vol.44 No.2

        본 연구는 한우개량에 필요한 기초자료를 얻기 위하여 1979년부터 1995년 사이에 전국 한우개량단지에서 조사한 체중과 10개 부위의 체적치에 대한 자료를 가지고 유전모수 추정에 이용하였으며 얻어진 결과를 요약하면 다음과 같다. 1) 유전력의 추정치는 생시, 이유시, 12개월령 및 27개월령 체중에서 각각 0.208±0.038, 0.457±0.073, 0.476±0.082 및 0.227±0.040으로 추정되었으며 12개월령 및 27개월령의 체고, 체장 및 흉위에서 각각 0.326, 0.486, 0.462 및 0.242, 0.110, 0.170으로 추정되었다. 2) 12개월령 체중과 체적치들간의 유전상관과 표현형상관은 모두 정의 값으로 추정되었으며 그 범위는 0.223부터 0.999까지 이었다. 27개월령 체중과 체적치들간의 유전상관과 표현형상관도 모두 정의 값으로 추정되었으며 그 범위는 0.290부터 0.083까지 이었다. This study was conducted to estimate heritabilities and genetic and phenotypic correlations among body weight and 10 different body measurements on the basis of the data from Korean cows at Korean Cattle Improvement Areas from 1979 to 1995. Results obtained are as follows, 1. Heritabilities of body weight at birth, weaning, 12 months and 27 months of age estimated were 0.208±0.038, 0.457±0.073, 0.476±0.082 and 0.227±0.040, respectively. Heritabilities of body measurements at 12 and 27 months of age estimated were 0.326 and 0.242 for withers height, 0.486 and 0.110 for body length and 0.462 and 0.170 for chest girth 2. Genetic and phenotypic correlations among body weight and ten body measurements at 12 months of age were positive ranging from 0.223 to 0.999. Genetic and phenotypic correlations among body weight and ten body measurements at 27 months of age were positive ranging from 0.290 to 0.883.

      • 하악 4전치 상실시 치료 계획

        한광진,Hahn, Kwang Jin 대한심미치과학회 2016 Journal of the Korean Academy of Esthetic Dentistr Vol.25 No.1

        상실한 하악 4전치에서의 치료 계획은 어느 다른 부위보다 수술의 성공률이나 보철치료시 유리한 환경을 지니고 있다고 흔히 생각되는 부위이다. 하지만 하악 전치들의 M-D 사이즈나 crowding으로 인한 공간적 제한, 임시치아 문제, 치조골 흡수로 인해 생기는 심미적인 문제 등 의외로 까다로운 경우가 종종 발생하는 부위기도 한다. 본문에서는 하악 4전치 상실 시의 치료 계확에 대해서 케이스를 통해 알아 보겠다. 하악 4전치 상실시 가능한 옵션들: 하나 혹은 4전치중 일부 상실의 경우나 잔존 치조골의 흡수가 거의 없어 임플란트 위치 관계가 심미적으로 중요하다고 판단되는 경우라면 직경이 작은 임플란트들을 원래 발치와 중앙에 식립(Narrow type 이나 One body mini implant type) 최종 보철물 형태가 Pink porcelain을 포함하는 이미 광범위한 치조골의 흡수가 일어난 경우 즉 임플란트 식립 위치가 덜 중요한 상황이라면 regular size의 임플란트들을 측절치와 중절치의 사이 Interseptal bone위치에 식립 4전치중 하나 혹은 일부가 상실됐고 남아 있는 전치들의 예후가 불량하다고 의심되나 환자가 당장 나머지 전치들의 발치에는 동의하지 않을 때 남아 있는 전치들이 발치 될 때까지의 Tentative restoration로서 Resin Bonded Bridge(Resin Retained Bridge/Resin Bonded Fixed Partial Denture)의 적용. Treatment of missing mandibular 4 incisors is often thought to be easier then other place during surgical and prothetic procedure. But clinicians encounter unexpected difficulties such as restricted implant site due to mesio-distal width of mandibular incisors, limited space as a result of crowing and mesial drift, esthetic problem after severe alveolar bone resorption, and difficulties of provisionalization Through cases, possible treatment options for missing mandibular incisors would be discussed. Treatment options for missing mandibular 4 incisors Place narrow type implant or one body mini implant on exact tooth position when there is no bone resorption Regular size implant on interseptal bone area when there is severe bone resorption Consider using resin bonded bridge(resin retained bridge/resin bonded fixed partial denture) as a tentative prosthesis when patient resists extracting remaining incisors with poor prognosis.

      • KCI등재

        한우의 번식형질에 대한 환경요인의 효과

        한광진 한국동물자원과학회 2002 한국축산학회지 Vol.44 No.2

        본 연구는 1986년부터 1995년도 사이에 한우개량단지의 한우 암소에 대하여 조사된 번식성적에 근거하여 한우의 번식형질에 미치는 환경요인의 효과를 추정하기 위하여 실시하였으며, 분석된 결과를 요약하면 다음과 같다. 1) 평균능력에서 초종부일령은 466.11±5.72일, 초임일령은 480.10±6.15일, 초산일령은 742.79±7.48일, 분만후 초종부일령은 64.97±1.42일, 공태일수는 72.06±1.73일, 번식간격은 355.93±1.92일, 임신기간은 285.38±0.42일 및 수태당 종부회수는 1.21±0.02회였다. 2) 지역별 각 형질에 대한 범위는 초종부일령은 447.62±5.94∼490.72±5.94일, 초임일령은 464.27±6.38∼505.20±6.39일, 초산일령은 721.91±7.85∼772.75∼7.80일, 분만 후 초종부일령은 62.27±1.55∼68.97±1.74일, 공태일수는 69.74±1.97∼74.36±2.27일, 번식간격은 352.71±2.18∼359.64±2.09일, 임신기간은 284.52±0.42∼286.04±0.47일 및 수태당 종부회수는 1.11±0.02∼1.30±0.02회였다. 3) 초종부일령은 혈통등록우가 가장 길었고 상위등록일수록 일령이 빨라지는 경향이 있었다. 수태당 종부회수는 상위등록우로 갈수록 종부회수가 많게 추정되었다. 4) 분만후 초종부일수는 2산차에서 가장 길었으며 산차가 진행될수록 줄어드는 경향을 보였다. 수태당 종부회수는 산차가 진행될수록 적어지는 경향을 보였다. 5) 분만년도가 1987년부터 1995년까지 경과할수록 분만후 초종부일수, 공태일수 및 번식간격이 길어지고 수태당 종부회수는 많아지는 경향이 있었다. 6) 분만후 초종부 일수, 공태일수 및 번식간격은 봄과 여름에 분만한 소들에서 가을과 겨울에 분만한 소들에 비하여 다소 짧게 추정되었다. 수태당 종부회수는 봄과 여름에 분만한 소들에 비하여 가을과 겨울에 분만한 소들에게서 더 많은 경향이 있었다. This study was conducted to estimate the effects of environmental factors on certain reproductive traits in Korea cattle on the basis of data from Korean Cattle Improvement Areas which were surveyed from 1986 to 1995. Results obtained were summarized as follows ; 1. Least square means of the reproductive traits estimated were 466.11±5.72 days for age at 1st service, 480.10±6.15 days for age at 1st conception, 742.79±7.48 days for age at 1st calving, 64.97±1.42 days for days at 1st service postpartum, 72.06±1.73 days for days open, 355.93±1.92days for calving interval, 285.38±0.42 days for gestation length and 1.21±0.02 days for number of services for conception, respectively. 2. The ranges of the least squares means for the districts were 447.62±5.94∼490.72±5.94 days for age at 1st service, 464.27±6.38∼505.20±6.39 days for age at 1st conception, 721.91±7.85∼772.75∼7.80 days for age at 1st calving, 62.27±1.55∼68.97±1.74days for days at 1st service postpartum, 69.74±1.97∼74.36±2.27days for days open, 352.71±2.18∼359.64±2.09 days for calving interval, 284.52±0.42∼286.04±0.47days for gestation length and 1.11±0.02∼1.30±0.02 days for number of serveces for conception, respectively. 3. Age at 1st service was latest in the cows with Basic Register and tended to be earlier for the more advancd registers. The number of services per conception tended to increase for the more advanced registers. 4. Days at 1st service postpartum was longest in the 2nd parity and tended to be shorter with the advancement of parity. The number of services per conception tended to decrease with the advancement of parity. 5. As the calving year advances from 1987 to 1995, days at 1st service postpartum, days open and calving interval tended to be longer, and number of service per conception tended to increase. 6. Days at 1st service postpartum, days open and calving interval were shorter in the cows that calved in spring and summer than in the cows that calved in fall and winter. The number of services per conception was larger in the cows that cocalved in fall and winter than the cows that calved in spring and summer.

      • 젖소개량체계를 위한 낙농종합정보망 구축

        한광진,남인식,이득환 한국농업정보과학회 2000 농업정보과학 Vol.1 No.2

        National Dairy Herd Improvement (DHl) program has been processed by Dairy Cattle Improve-ment Center (DCIC) as a branch of National Livestock Cooperatives Federation (NLCF) in order to enhance the dairy productivity of dairy farms in Korea since 1979. This program has been renewed to improve farm management systems by providing useful information in milking productivity, feeding condition and genetics. Under DHI program, all dairy farm records, such as individual milk production, fat and protein components, nutrition level, somatic cell count and reproduction data are collected and analyzed provide information to all members who join this program by monthly in cooperation with member-coops of NACF nationwide using net-work technology. By participating in this Total Dairy Management Consulting Service, dairy farmers, who have memberships, have been able to get new skill and technology and renovate their management. Within the year 2003, over 60% of total dairy herds should be expected to enroll in this program. For DH farmers, DCIC Internet system like World Wide Web (http://www.dcic.co.kr) can be a convenient tool to offer lots of informa- tion related to individual DHI cow's records. Dairy farmers can also order some of merchandise like semen, farming appliances by sending a sheet of invoice to DCIC under this web-site. Farmers may, especially, select and purchase the suitable semen referenced by the report that includes some of guideline of mating on each cow of the farm, which brings newest information on international dairy industry by Internet on DCIC. DCIC dairy network system has been linked to the several network systems such as National Livestock Research Insti-tute (NLRI), National Veterinary Research and Quarantine Service OfVRQS), agricultural colleges, livestock associations, private institutions and dairy farms in Korea. Identification system of each cow can be requisite for health survey of animal and for prevention against meat contaminates from some infectious virus as well as tool of breed improvement. So DCIC has held common cow unique ID for a lifetime with other organizations such as 32 DHI centers, breed association (KAIA). These unique ID systems should be most efHciently shared with those organizations using networking technologies which are likely to be of great helpful to all dairy farm-ers and organizations related to competent players in the area of international dairy industry.

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