The present study evaluated the blood profile and meat color of ducks with Houttuynia cordata (H. cordata) pellets in their diets. In total, 120 pekin ducks (1-d-old) were used in a 42 d growth trial. Ducks were randomly allocated to six pens and exposed to three replicates of two treatments: (1) controls as basal diet and (2) basal diet + 2% H. cordata pellets (T1). Total-cholesterol, HDL-cholesterol, triglyceride contents or L* and b* vaules revealed significant difference (p>0.05) in compared with those in the controls; however, dietary supplementation of H. cordata pellets did not affect (p>0.05) LDL-cholesterol, VLDL-cholesterol and a* values. In conclusion, the inclusion of 2% H. cordata pellets improved HDL-cholesterol and meat color in duck breast and thigh meats, which further reduced other cholesterol values.

본 연구는 재래누룩에서 분리 동정한Aspergillus oryzae 83-10(AO)을 활용하여 원료조건에 따른 pellet형 누룩의 특성과 양조특성을 검토하였다. 실험 결과, 원료의 조건은 10분간 증자하여 살균․호화된 원료(S)가 pellet 누룩의 제조에 있어서 안정적이고, 높은 효소력의 생성에 더욱 적합한 것으로 나타났으며, 발효경과 32시간 때에 효소활성이 높고, 포자생성에 의한 포자 날림 등이 없어 작업성이 가장 우수하였다. 제조된 pellet 누룩 S-AO(32시간 배양)과 시판되고 있는 재래누룩 SH의 효소활성(dry base, unit/g)을 비교한 결과, glucoamylase 활성 S-AO(325.92) > SH(297.44), α-amylase 활성 S-AO(421.26) > SH(75.12) 및 acidic carboxypeptidase 활성 S-AO(3,803.8) > SH(278.6)으로 pellet 누룩이 재래누룩과 비교해 유의적으로 높은 수치를 나타내었으며, 누룩의 일반분석 결과에서는 SH 누룩이 pH, 총산, 아미노산도 모두 유의적으로 높은 수치를 나타내었다. 약주 양조특성 분석 결과 발효가 끝난 시점에 SH 술덧의 가용성고형물과 총산함량이 S-AO 술덧과 비교하여 유의하게 높게 나타났으며, S-AO 술덧은 아미노산 함량과 알코올 함량이 유의적으로 높게 나타났다. 알코올 함량 분석결과 S-AO 17.96%, SH 12.66%으로 큰 차이를 나타내어 발효 안정성과 수율에 있어서 S-AO 술덧이 높은 평가를 받았다. 발효경과 중 술덧의 효소활성은 누룩의 사용량을 쌀 사용량(g)×30 unit/g(glucoamylase)으로 효소활성 수치에 따라 달리 하였지만 그에 못 미치는 결과를 보였다. 술덧제조 직후 S-AO 26.69 unit/mL, SH 17.58 unit/mL으로 S-AO 시료는 비교적 근접한 수치를 나타내었지만 SH 시료는 상당량 부족한 모습을 보여 이러한 결과는 누룩의 품질 균일성에 의한 것으로 판단되어진다. 이러한 결과로 살균된 통밀을 pellet형 누룩으로 가공하여 국균을 배양하면 기존 재래식 누룩이나 입국에 비하여 품질을 떨어뜨리지 않으며, 제조효율도 상당히 높일 수 있을 것으로 기대할 수 있다.

This study investigated the effect of coated feed using mixed oil on rumen fermentation characteristics. Two experiments were conducted based on materials that were mixed. First, cashew nut and soybean oils were mixed with white mineral oil. And second, different plant extracts were mixed with white mineral oil. At first experiment, inclusion levels of mixed oil on diet (0.03%, 0.1%, 0.5%) were applied as variables. A coated diet was fermented with rumen inoculum according to in vitro rumen fermentation and its parameters were investigated. In the result of first experiment, no negative effects on rumen pH were found. Significantly decreased dry matter digestibility was detected at 0.5% treatment (P<0.05). Total gas productions in control and 0.03% were significantly greater than those of others (P<0.05). Significantly reduced methane productions were found in all treatments compared to the control (P<0.05). Inclusion of mixed oil did not affect on ammonia production. Total volatile fatty acid production was also not influenced by coating with mixed oils. Rumen fermentation parameters were greatly changed according to introduced plant extracts at second experiment. The significantly lowest and greatest ammonia productions were found at treatments with Ixeris dentata and Plantago asiatica, respectively (P<0.05). The significantly greatest acetate and propionate productions were detected at treatments with Crucuma longa and Zizyphus vulgaris 1, respectively (P<0.05). All treatments, except Chrysanthemum idicum, Euyale ferox seed, Moringa leaf and fruit and Zizyphus vulgaris 1, showed significantly increased total volatile fatty acid production compared to the control (P<0.05). Only Paeonia lactiflora showed significantly lesser gas production than the control (P<0.05). In methane production, Ceramium, Zizyphus, Paeonia, Agrimonia, Torilis, Mugwort, Foeniculum, Euphorbia, Taraxacum, Artemisia, Momordica, Curcuma and Moringa reduced methane significantly compared to the control (P<0.05).

We are now currently facing serious climate changes such as super typhoon, flood, intense heat, severe cold, super hurricane, drought, desertification, destruction of ecosystem, marine pollution, reduction of food production, destruction of tropical forests, exhaustion of water resources, climate refugees, etc. All of the above mainly derive from greenhouse gas exhaustion. Such harmful consequence might directly affect mankind’s sustainable development. If we keep using resources that emits greenhouse gases, the global temperature will rise about 3.2℃ by year 2050. In case of 3℃ rise in temperature, it will result in abnormal climate which will bring about severe property damage. Moreover, 20~50% of the ecosystem will become extinct. As Korea’s economy increasingly expands, so do our energy consumption rises. And because of the consequences that can be driven by increasing rate of resource use, not just Korea itself, but also the whole world should seriously concern about greenhouse gases. Although agricultural division only takes up about 3.2% of total greenhouse gas emission, the ministry of Agriculture, Food and Rural Affairs are taking voluntary actions to gradually reduce CO2 and so does each and every related organizations. In order to reduce CO2, introduction of new and renewable energy in farm house warming is crucial. In other words, implementing wood-pellet boiler and geothermal heat boiler can largly reduce CO2 emission compared to diesel boiler. More importantly, not only wood-pellet and geothermal heat is pollution-free but they also have economic advantages somewhat. In this thesis, the economic advantage and sustainablity will be introduced and proved through comparing practical analysis of surveyed farm house under structure employing wood-pellet boiler and geothermal heat boiler with Agriculture-Economic Statistic of 2012 who uses diesel boiler.

This study was carried out to select new pelleting binder and material for seeds from Fraxinus rhynchophylla Hance and Alnus sibirica Fisch. ex Turcz. The optimum treatments of the various concentrations and species of priming agents to improve seed germination of both woody medicinal plants were also estimated. Germinability was increased when the seeds of Fraxinus rhynchophylla Hance was soaked in -1.0 MPa of PEG6000 solution at 15℃ for 4 days significantly, the optimum treatment for improving germination of Alnus sibirica Fisch. ex Turcz was observed when the tested seeds was soaked in 100 mM of KCl at 15℃ for 4 days. The influence of physical and chemical properties of pelleting solid materials, the mixture of gypsum, diatomaceous earth, dalma ceramic and vermicuolite (6:1:1:1 ratio) were found as the best pelleting materials for Fraxinus rhynchophylla Hance and Alnus sibirica Fisch. ex Turcz. seeds. To satisfy the requirements of absorption and compatibility for multi-layer seed pelleting, SGPA (Starch-grafted cross-linked polyacrylates) hydrogel was prepared using starch, acrylonitrile, ceric ammonium nitrate, nitric acid, methyl alcohol and potassium hydroxide. The resulting SGPA hydrogel showed high water absorption but not plant compatibility. It suggested that seed pelleting using pelleting materials and SGPA hydrogel (multi-layer coating) after priming agent treatment is to increase germinability and seedling growth and it can reduced irrigation labours and can also save seed.

배합사료를 공급한 양식 넙치와 생사료를 공급한 양식넙치의 핵산 관련 물질 및 유리아미노산 측정을 통한 품질의 차이를 비교하였다. 넙치 등근육의 핵산관련물질은 모든 실험사료구에서 공통적으로 AMP 함량이 가장 높았고 그 다음으로 IMP의 함량이 높았다. 공급한 사료에 따라서 HxR의 성분에는 유의적인 차이(p

본 연구에서는 단백질(51~5%) 및 지질(9~15%) 함량이 다른 배합사료(EP)와 생사료(MP)를 공급하면서 사육한 양식넙치의 육질을 비교해 보고자 하였다. 사육실험은평균체 중 106g의 넙치를 원형수조에 40마리씩 실험구별로 2반복으로 수용하면서, 단백질 및 지질 함량이 서로 다른 실험 배합사료(EP1, EP2, EP3)와 수입산 상품 배합사료(EP4) 및 MP를 16주간 공급하면서 사육하였다. 수분함량은 생사료(MP)를 공급한 넙치의 등근

종자 수확 후 버려지는 산업용 대마를 이용한 목질 펠릿제조 가능성과 제조된 펠릿의 특성을 살펴보았다. 산업용 대마의 성분 분석 결과 활엽수와 비슷한 리그닌 함량과 당구성을 보였으며, 회분 분석 결과 무기물 함량이 0.5% 정도이어서 연료로 사용할 경우 재의 생산량은 크지 않을 것이다. 원소 분석 결과 대기 오염을 유발할 수 있는 질소와 황 함량을 분석한 결과, 황 성분은 전혀 포함하지 않고 있으며, 약간의 질소 성분을 포함하고 있는데 이는 현사시나무와 비슷한 수준이었다. 고위발열량 측정 결과 대마 목부는 현사시나무보다 다소 낮은 값을 나타내었다. 바이오매스 생산량이 큰 대마 목부를 이용하여 제조한 펠릿은 활엽수로 제조한 펠릿과 비슷한 화학적 성질과 발열 특성을 가질 것으로 기대되어 고체연료로서의 이용이 가능할 것으로 사료되었다.

Road runoff, one of non-point source pollutants, contains various heavy metals, most of which flow into discharge waters without being treated. The mechanism of removing the heavy metals in water is similar to that of removing micro-particles. Therefore, it is considered that it is possible to remove a lot of the heavy metals contained in the road runoff by filtering or absorbing them. In this paper, performed has been a basic study on the characteristics of UNFS (Up Flow Non-Point Source Filtering System) using carbide pellet and zeolite pellet as double-layer filtering mediums to treat the road runoff. The removal rate with filtering and absorption time has been shown as follows: 29.0% for Cr; 27.8% for Cd; 25.7% for Fe; 25.4% for Co; 21.2% for Pb; 19.6% for Zn; 18.2% for Al; 17.0% for Mn; 11.3% for Ni; 7.5% for Cu. The overall removal rate according to influx change has been shown to be approximately 30%, and the load of heavy metals flowing out in initial precipitation could be reduced by using carbide as a recycling filtering medium. When the removal as coarse particles settle is added up, it is expected that UNFS will result in a higher removal rate.

택사 종자의 펠렛화를 위한 피복 재료를 선발하기 위해 기존에 개발되었거나 농업적으로 이용 가능한 재료들을 사용해 본 시험을 수행하였다. 펠렛 종자의 모양형성은 피복 재료의 종류에 따라 좌우되었으며 대체로 단용재료나 2종의 혼합재료에 비해 3종의 혼합재료가 펠렛 형성이 잘되고 수분 흡수후 펠렛의 열개성이 우수했다. 특히 SDZ+DE+CA 0.4~% 의 혼합물이 발아율 및 발아세가 95.3~% 로 가장 높았고 생력 기계파종을 위한 물리적 특성도 좋아 펠렛 종자의 피복 재료로 가장 양호하였다.