• 한국토양비료학회지
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• 제43권6호
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• pp.937-944
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• 2010

Cu and Zn can be accumulated in plastic film house soils by long-term application of livestock manure or compost. The mobility and bioavailability of Cu and Zn accumulated in soils are strongly influenced by their chemical or geochemical species in soils. In order to assess the accumulation, mobility, and bioavailability of Cu and Zn in plastic film house soils, we determined their geochemical species using a sequential extraction, grouped into three pods: the total pool, the potentially mobil pool, and the mobil pool. Total contents of Cu and Zn, ranged from 14.9 to 53.1 mg $kg^{-1}$ for Cu and from 55.4 to 169 mg $kg^{-1}$ for Zn, lied by far below the soil contamination standards, but exhibited little accumulation compared with their geogenic concentrations. Mobile contents of Cu and Zn and their percentage of total contents were strongly affected by soil pH in addition to total contents and soil organic matter. Mobile contents of Cu, ranged from <0.01 to 1.71 mg $kg^{-1}$, showed their minimum between pH 5.0 and 6.0 and increased above pH 6.0 to 8.0. In contrast, mobile contents of Zn, varied from <0.01 to 12.4 mg $kg^{-1}$, showed their minimum above pH 7.0 and increased strongly with decreasing pH below 5.5~6.0. Potentially mobile and total contents of Cu and Zn rose with ascending soil organic matter. To assess ecological and toxic effects of Cu and Zn in soils, mobile and potentially mobile contents, as bioavailable and potentially bioavailable pools, should be considered more important than total contents.

• 한국농공학회지
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• 제44권5호
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• pp.136-146
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• 2002

Land application of manure compost is considered one of the widely-used animal waste management practices. Many livestock farms adopt composting for their animal waste disposal and apply the compost to crop fields. While standard rates have been established based on researches with respect to land application of manure compost recently, there have been few discussions on water quality impact of the application. Water quality impact should be taken into account in land applications of manure compost. In this study, management practices were proposed based on the investigation of water quality of leachate from manure compost under rainfall simulation, field studies, and monitoring runoff water quality from farm fields after land application of animal waste. The concentrations of major water quality parameters of the leachate were significantly high, whereas those of runoff from soils after tillage for soil incorporation, were not affected by the application based on a series of experiments. Runoff water from farm fields after land application also showed high concentrations of pollutants. Appropriate management practices should be employed to minimize pollutant loading from manure applied fields. Proposed major management practices include 1) application of recommended amounts, 2) proper tillage for complete soil and manure incorporation, 3) field management to prevent excessive soil erosion, 4) complete diversion of inflow into the field from outside, 5) implementation of vegetative buffer strips near boundaries, and 6) prevention of direct discharge of runoff water front fields Into streams.

• 대한지역사회영양학회지
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• 제6권5호
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• pp.837-847
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• 2001

The main purposes of this study were to survey and assess the current situation surrounding solid waste generation in school foodservices, to identify and evaluate the measures(reduction and recycling programs) taken by the foodservices for waste disposal, and to suggest appropriate reform measures to improve the current status, especially in terms of environmental preservation. Questionnaires on solid waste management practices were mailed to 206 school foodservice dietitians in the Kyungbuk region : a 64.0%(N = 130) response rate was obtained. While there are food waste and packaging waste generated from the foodservice operations, about a third(34.1%) of the foodservice operations were responsible for the disposal of both the food wastes and packaging wastes. About 90% of school foodservice managers were responsible for managing solid wastes. The primary recycling methods of leftovers generated from the school food service operations were livestock feed(76.0%). About 60.0% of school foodservice managers conducted the food waste reduction program. The performance by the foodservice managers in reducing the food waste was not satisfactory in several fields, such as developing environmentally friendly menus or abiding by the standard recipe, etc. In addition, the government assistance system was not properly working in the food service management. In conclusion, we should focus on increasing the performance in reducing the food waste by the foodservice managers, strengthening and facilitating the government assistance system for the food waste management and to develop education methods and education materials for food waste management.

• 한국유기농업학회지
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• 제3권1호
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• pp.43-70
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• 1994

Presently the concept of organic farming has not simply technical categories such as no agricul-tural chemicals and no chemical fertilizer but can be also extended to the categories of economics, food nutrition, environmental and philosophical aspects. Accordingly, in order to understand cor-rectly organic farming, it is necessary to look into the concept including these extended aspects. So the production and consumption activities of organic farming products are largely based on the fundamental philosophy of organic farming. That is, all the life that is included in an ecosystem has to live in symbiosis, which is based on life circulation principle. And if this circultaion system is destroyed, human life may be threatended. Farmers who produce organic farming prducts(organic farmer) receive price higher than general farmers. This study shows the gap of 46.9% in two products. Also, since the price of organic farming products is fluctuated less relatively, Organic farming pruducts can be competed against imported agricultural products in terms of food safety. And organic farming should be managed by crop rotation and composite farm management upon which the principle of material circulation is worked. This composite management is devided into 2 classes, which are individually livestock-have-composite management and regional composite management. These management method means that organic materials are crucial to maintain the structure and fertility and these organic materials are easily obtained from animal as by-products.

• Asian-Australasian Journal of Animal Sciences
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• 제28권11호
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• pp.1525-1531
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• 2015

Using next-generation sequencing, we conducted a genome-wide scan of selective sweeps associated with selection toward genetic improvement in Thoroughbreds. We investigated potential phenotypic consequence of putative candidate loci by candidate gene association mapping for the finishing time in 240 Thoroughbred horses. We found a significant association with the trait for Ral GApase alpha 2 (RALGAP2) that regulates a variety of cellular processes of signal trafficking. Neighboring genes around RALGAP2 included insulinoma-associated 1 (INSM1), pallid (PLDN), and Ras and Rab interactor 2 (RIN2) genes have similar roles in signal trafficking, suggesting that a co-evolving gene cluster located on the chromosome 22 is under strong artificial selection in racehorses.

• Asian-Australasian Journal of Animal Sciences
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• 제17권7호
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• pp.1014-1018
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• 2004

Relationships between muscle $\alpha$-tocopherol oncentrations and metmyoglobin percentages during display of six muscles, m. serratus ventralis (SV), m. psoas major (PM), m. gluteus medius (GM), m. semimembranosus (SM), m. semitendinosus (ST) and m. longissimus lumborum (LL), of Japanese Black steers slaughtered at 28 months of age were studied. Steers were supplemented with 0, 2,000 and 4,000 mg $\alpha$-tocopheryl acetate/head/day for 28 days prior to slaughter in the VE 0, the VE 2,000 and the VE 4,000 groups, respectively. $\alpha$-Tocopherol concentrations in PM, GM, SM, ST and LL of the VE 2,000 and the VE 4,000 groups were significantly (p<0.05) higher than those of the VE 0 group. There were no significant (p>0.05) differences in $\alpha$-tocopherol concentrations in all muscles between the VE 2,000 group and the VE 4,000 group. The muscle $\alpha$-tocopherol concentrations ($\ell$/g meat) which can retard metmyoglobin formation in muscles were estimated to be 5.3 for SV, 4.5 for PM, 4.2 for GM, 4.0 for SM, 3.6 for ST and 3.5 for LL. The equation to predict color-shelf-life of each muscle from the $\alpha$-tocopherol concentration in each muscle could be obtained.

• 동아시아경상학회지
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• 제5권4호
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• pp.67-74
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• 2017

Purpose - The main purpose of this study is to contribute to the elevation of producers' production at various levels by proposing the creation of producer improvement indexes that can be used for the successful 6th industrialization of Korean agribusiness based on the Kano model and has synergistic effects on the development of the 6th industry through scientific researches. Research design, data, methodology - To this end, this study derived better and worse index from the same estimation of Timko's customer satisfaction index as in the evaluation charts used in previous researches and theoretical studies on the Kano model. Results - In this paper, we suggested that the formula for producing PSCI Index be applied to yield the producer improvement index in the 6th industry, in order to draw SIPPI. Conclusions - If this suggestion is realized, then a lot of researchers will be supported to more systematically study producers, and it is expected to contribute to the development of the 1th industry, a basis for the successful 6th industry. Moreover, the central government and municipalities are expected to provide a variety of clues for applying various policies for successful agribusiness.

• Preventive Nutrition and Food Science
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• 제18권4호
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• pp.242-248
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• 2013

In recent years, manufacturers of animal-based foods with health claims have encountered difficulties in the labeling of their products because of a lack of regulation on defining the functionality of animal-based foods. Therefore, this study was conducted to establish the basic requirements for the development of a definition for functional animal-based foods by investigating consumer and industry awareness. Survey data were collected from 114 industry representatives and 1,100 consumers. The questions of the survey included items on production status and future production plans, functionality labeling, promotion plans, establishment of definition, the role of the government, consumer perception, and selection of products. The results show that both industry representatives and consumers believe that legislation and the provision of scientific evidence should be improved for the development of a functional animal-based foods market. The results obtained from this study will contribute to consumer trust by supplying correct information and can be utilized in the industry as basic data for the development of functional animal-based food products.

• 한국산학기술학회논문지
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• 제18권2호
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• pp.600-608
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• 2017

본 연구는 한국채택 국제회계기준(K-IFRS)이 본격 도입된 2011년 이후 금융감독원에 전자공시시스템(DART)에 공시된 공신력 있는 회계보고서를 바탕으로 축산업 농업법인의 경영지표 및 부채비율과 경영성과에 관하여 분석하였다. 첫째, 주요 경영지표를 분석한 결과, 안전성 지표는 유동비율, 부채비율, 유동부채비율이 낮아지고, 자기자본비율은 높아진 것으로 나타났다. 수익성 지표는 총자산순이익율, 자기자본순이익율, 매출액순이익율이 모두 2013년에 비해 2014년에 약간 증가한 것으로 나타났고, 성장성 지표는 전체적인 성장성 및 외형적인 성장성 모두 증가하지 않은 것으로 나타났다. 둘째, 부채비율과 경영성과를 분석한 결과, 부채비율은 경영성과 변수인 총자산순이익률(ROA)과 매출액순이익률(ROS)에 모두 부(-)의 영향을 미치는 것으로 나타났다. 이는 우리나라 축산업 농업법인의 부채사용이 외형적인 성장에는 기여하였으나 경영성과로는 이어지지 않고 오히려 무리한 부채사용이 경영성과에 부정적인 영향을 미친 것으로 해석할 수 있다. 분석결과를 종합해보면 축산업 농업법인의 수익성 및 성장성 개선을 위하여 원가절감과 같은 경영개선을 통한 매출액 증대 방안이 모색되어야 할 것으로 보인다. 또한 부채사용이 외형적인 성장에는 기여하였으나 경영성과로는 이어지지 않는 만큼 무리한 부채사용을 줄이고 기술개발 보급 등에 의한 농업경영비 절감으로 매출 및 수익 증대 방안이 모색되어야 할 것이다.

• 대한가정학회지
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• 제41권12호
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• pp.39-52
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• 2003

The purpose of this study was to investigate the status of school lunch program managers' disposal of food waste and food service management in elementary school lunch program. Questionaries were distributed to 243 school lunch program managers of elementary schools in Seoul and Incheon area. The statistical analysis of data was completed using SPSS program. The results were summarized as follows. The average score of school lunch program managers' environmental conservation consciousness was slightly high, which was found to be 4.0. Most food waste was mainly vegetables. The primary recycling methods of leftovers from the school food service operations were to using them as livestock feed(84.7％). The best way of food waste treatment recognized by school lunch program managers' was utilizing it as fodder for animals or fertilizer(54.1％). The average score that school lunch program managers' achieved in terms of food nice management considering environmental conservation was 3.8. The school lunch managers' opinions imposing environmental regulation on the corresponding firm was very strict. Based on the observed results, several recommendations are suggested：practical food management guideline and its related proper information, foodbank program.