• 유기물자원화
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• 제3권1호
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• pp.73-83
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• 1995

본 실험은 옥수수에 대한 정수장 슬러지 (Alum 슬러지)의 시용효과와 다양한 pH별로 용출된 alum슬러지 추출물이 옥수수의 유식물 생육에 미치는 영향을 평가하기 위해서 수행되었다. Alum슬러지와 부숙된 Alum슬러지 퇴비를 각각 1500kg/ha를 시용하여 옥수수를 재배한 결과 수량, 엽록소함량, 초장 등의 평가에서 대조구에 비해서 비효가 인정되었으며, 뚜렷한 비해 현상은 나타나지 않았다. 처리구별 옥수수의 종실에 대한 식품화학적 분석에서도 뚜렷한 성분 변화는 발견되지 않았다. pH에 대한 옥수수 유식물의 생육은 pH4 미만에서 지상부와 지하부의 생육저해가 나타났으며 무기이온의 흡수는 pH4 이하에서 크게 장해를 받는것으로 나타났다. 반면 alum슬러지의 추출물에서는 pH가 낮아지면서 지속적인 생육저해와 양이온 흡수저해가 나타났다. 또한 Aluminum함량이 100ppm 이하에서 극심한 생육저해가 나타났다.

• 농업생명과학연구
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• 제43권3호
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• pp.63-75
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• 2009

본 연구에서는 소비자 지향적 마케팅시대에 직면하여 국내외 농산물 소비수요의 변화에 대응하고 친환경농산물의 유통개선을 도모하기 위하여 소비자들의 친환경농산물인증제도 및 정책에 대한 인식을 조사분석 하였다. 조사연구 결과에 의하면 첫째, 친환경농산물의 소비저변을 확대시키기 위한 가장 시급한 문제는 생산자인 농민들이 아니라 소비자들에 대한 신뢰성을 확보하는 것이 무엇보다도 중요함을 알 수 있다. 이를 위해서는 다양하고 안전한 판로개척과 품질경쟁력 제고, 소포장 규격화 판매, 품질인증제도를 통한 브랜드화 추진, 리콜제 실시등을 통해 소비자들로부터 신뢰를 얻어야 한다. 둘째, 정부의 친환경농산물정책에 대한 지속적이 홍보와 교육이 이루어지고 또한 감독강화가 이루어져야 할 것으로 생각된다. 특히 친환경농산물 유통구조에서 농민들과 직접 거래를 하는 직거래나 인터넷 거래를 활성화시킴으로서 소비자들에 의한 신뢰도를 높일 수 있는 계기가 마련될 것이다. 셋째, 친환경농산물에 대한 품질관리가 지속적으로 이루어져야 한다. 이는 중앙정부의 감독관리도 중요하지만 지역별 품질인증기관을 육성하고 품질인증기관이 생산과정에 대한 투명성을 철저히 보장할 수 있도록 제도화하여 친환경농산물에 대해 소비자들로부터 신뢰를 얻어야 할 것으로 보인다. 마지막으로 친환경농산물 생산농가가 판매에 대한 어려움을 지자체 등이 적극적으로 지원할 필요가 있을 것으로 판단된다.

• 한국발생생물학회지:발생과생식
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• 제16권4호
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• pp.253-264
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• 2012

Nesfatin-1 is a recently discovered anorexigenic peptide which is distributed in several brain areas implicated in the feeding and metabolic regulation. Recently, it has been reported that nesfatin-1 is expressed not only in brain, but also in peripheral organs such as digestive organs, adipose tissues, heart, and reproductive organs. Nesfatin-1 is markedly expressed in the pancreas, stomach and duodenum. Eventually, the nesfatin-1 expression in the digestive organs may be regulated by nutritional status, which suggests a regulatory role of peripheral nesfatin-1 in energy homeostasis. Nesfatin-1 is also detected in the adipose tissues of humans and rodents, indicating that nesfatin-1 expression in the fat may regulate food intake independently, rather than relying on leptin. In addition, nesfatin-1 is expressed in the heart as a cardiac peptide. It suggests that nesfatin-1 may regulate cardiac function and encourage clinical potential in the presence of nutrition-dependent physio-pathologic cardiovascular diseases. Currently, only a few studies demonstrate that nesfatin-1 is expressed in the reproductive system. However, it is not clear yet what function of nesfatin-1 is in the reproductive organs. Here, we summarize the expression of nesfatin-1 and its roles in brain and peripheral organs and discuss the possible roles of nesfatin-1 expressed in reproductive organs, including testis, epididymis, ovary, and uterus. We come to the conclusion that nesfatin-1 as a local regulator in male and female reproductive organs may regulate the steroidogenesis in the testis and ovary and the physiological activity in epididymis and uterus.

• Journal of Animal Science and Technology
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• 제54권3호
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• pp.185-190
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• 2012

A total of 800 one-day-old chickens (Cobb 500) were obtained from a local hatchery and allocated randomly to five dietary treatments. This study conducted for 42 d. Treatment groups included 1) CON (control), 2) T0.3 (0.3% of thyme extract), 3) T0.6 (0.6% of thyme extract), 4) G0.3 (0.3% of garlic extract) and 5) G0.6 (0.6% of garlic extract). Thyme extract included $90{\mu}g/ml$ Carvacrol and 400 mg/ml thymol while garlic extract included 100 mg/ml elastin. There were no significant effects among the treatments on weight gain, feed intake and feed conversion ratio over the entire trial. Also, no significant differences were observed between CON group and other treatments in plasma parameters (cholesterol, triglyceride and HDL) and hematocrit. Sex of chickens had no effect on blood parameters. Supplementation of herb extracts did not affect carcass characteristics including carcass yield, breast, thigh and abdominal fat. There were no significant differences observed in carcass characteristics between males and females fed with different levels of herb extracts. In conclusion, supplementation of garlic and thyme extracts as feed additives at two levels of 3 and 6% in the present study did not improve performance and carcass traits of broiler chicks.

• 한국축산식품학회지
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• 제30권2호
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• pp.277-285
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• 2010

경제적 가치가 낮은 노계육으로 겨울철의 자연 동결 건조에 의해 새로운 염지 건조 계육을 제조하기 위하여 본 연구를 실시하였다. 평균 80주령의 산란 노계 통닭을 무처리(대조구), 염지구, 염지에 2% trehalose 첨가구로 나누어 실시하였다. 시험용 노계육은 강원도 인제에서 겨울철 3개월(2008. 1-2008. 3; 평균기온: $-1.8^{\circ}C$; 평균습도: 63%; 평균풍속: 1.8 m/sec) 동안 명태 건조와 동일한 방법으로 야외에서 건조시켰다. 건조가 진행됨에 따라 노계육의 수분과 수분활성도는 모두 감소하였다. 특히 염지 처리를 하면 건조기간 중 대조구에 비해 pH가 높고 수분활성도와 전단력이 낮으며, 지방산화와 단백질 부패가 억제되었다(p<0.05). 관능검사에서도 염지시킨 건조 노계육이 대조구에 비해 맛, 연도, 다즙성 및 종합적 기호도에서 월등히 우수하였다(p<0.05). Trehalose는 염지육에서 건조기간 중상대적으로 수분 함량을 높이고 건조를 지연시켰으나, 수분활성도는 대조구에 비해 낮췄기(p<0.05) 때문에 보습제의 역할을 하였다. 지방산 조성을 보면 건조기간 동안 염지육들이 대조구에 비해 다가불포화지방산 함량이 높았다. 대부분의 미생물들은 건조 중에 약 2 Log CFU/g 이하의 낮은 수준이거나 검출되지 않았다. 따라서 이화학적, 미생물학적 및 관능검사의 결과로 볼 때 노계육을 염지시켜 자연 건조를 3개월 이내 실시하면 품질 및 위생적으로 문제가 없는 건조 노계 육제품을 제조할 수 있다.

• 대한지역사회영양학회지
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• 제20권3호
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• pp.220-235
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• 2015

Objectives: The purpose of this study was to investigate how clinical nutrition services is provided at a long term care hospital in Korea and to investigate job satisfaction levels of the clinical dietitians. Methods: Survey questionnaire was sent to dietitians working at a long term care hospital in Korea. The participating hospitals (n=240) were randomly selected from 1,180 long- term care hospitals using a stratified sampling method. A total of 134 long term care hospital s and 223 dietitians completed the survey of clinical nutrition service s and job satisfaction questionnaires The job satisfaction questionnaire included 27 job satisfaction questions on task, stability vision, working conditions, and relationship areas. Results: The average nutritional screening rate was 17.9% and the rate of computerized nutritional screening system was 9.7% in the participating hospitals. Nutritional intervention rate was only 3.2% of all patients. KOIHA (Korea Institute for Healthcare Accreditation) accreditated hospitals showed only 50% performance rate of nutrition service evaluation area. This shows that after achieving KOIHA accredition, many hospitals do not emphasize the performance of nutritional services. The job satisfaction scores in all four areas ranged from 2/5 to 3/5, implying generally low job satisfaction level in hospital dietitians. Linear regression analysis results showed that the "hospital adequacy grade" type was a significant predictor of job satisfaction level for two areas (working conditions & relationship). Conclusions: There is a need to provide proper standardized clinical nutrition services as a primary treatment and we observed large variations in the quality of nutritional service s in long term care hospitals. Therefore, government and local hospitals have to work on implementing nutritional programs and policies for improved service and care.

• Fisheries and Aquatic Sciences
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• 제26권9호
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• pp.558-568
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• 2023

Vibrio vulnificus is an aquatic bacterium causing septicemia and wound infection in humans. To understand this pathogen at the genomic level, it was performed whole genome sequencing of a cefoxitin-resistant strain, V. vulnificus 1908-10 possessing virulence-related genes (vvhA, viuB, and vcgC) isolated from Gadeok island coastal seawater in South Korea. The genome of V. vulnificus 1908-10 consisted of two circular contigs and no plasmid. The total genome size was estimated to be 5,018,425 bp with a guanine-cytosine (GC) content of 46.9%. We found 119 tRNA and 34 rRNA genes respectively in the genome, along with 4,352 predicted protein sequences. Virulence factor (VF) analysis further revealed that V. vulnificus 1908-10 possess various virulence genes in classes of adherence, antiphagocytosis, chemotaxis and motility, iron uptake, quorum sensing, secretion system, and toxin. In the comparison of the presence/absence of virulence genes, V. vulnificus 1908-10 had fur, hlyU, luxS, ompU, pilA, pilF, rtxA, rtxC, and vvhA. Of the 30 V. vulnificus comparative strains, 80% of the C-genotype strains have all of these genes, whereas 40% of the E-genotype strains have all of them. In particular, pilA were identified in 80% of the C-type strains and 40% of the E-type strains, showing more difference than other genes. Therefore, V. vulnificus 1908-10 had similar VF characteristics to those of type C strains. Multifunctional-autoprocessing repeats-in-toxin (MARTX) toxin of V. vulnificus 1908-10 contained 8 A-type repeats (GXXGXXXXXG), 25 B.1-type repeats (TXVGXGXX), 18 B2-type repeats (GGXGXDXXX), and 7 C-type repeats (GGXGXDXXX). The National Center for Biotechnology Information (NCBI) Basic Local Alignment Search Tool (BLAST) showed that the RtxA protein of V. vulnificus 1908-10 had the effector domain in the order of cross-liking domain (ACD)-C58_PaToxP-like domain- α/β hydrolase-C58_PaToxP-like domain.

• Journal of Forest and Environmental Science
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• 제29권1호
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• pp.71-80
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• 2013

Present study analyzes the rooftop gardening status, floristic composition and cost and return of the rooftop garden in Sylhet City Corporation of northeastern Bangladesh. Data was collected from 450 rooftop gardeners randomly during July-September 2010. Study reveal that rooftop gardening is generally for mental satisfaction (95.3%) followed by leisure time activity (87.8%) in the study area and almost all the family members of gardeners' were involved; while collection of planting materials, sites preparation and marketing of products were reported to be carried out by males only (male 71.33%). Middle income classes were most interested in rooftop gardening (43.78%). The survey recorded 53 plant species (35 families) of which Cucurbitaceae family represented highest eight species. Shrubs (28%) were highest followed by herbs (26%) among agri-crops (36%) and flower species (30%). About 89% of the rooftop gardeners procured planting materials from nursery, market, fair, neighbor, relative and friends and they mostly prefer to use seedlings (48%) for roof gardening followed by direct seed sowing (21%). Gardeners sell products sporadically in different local markets, directly or through intermediaries, with no uniform pricing for system. Rooftop gardening improves the food security and meet nutritional deficiency to the gardeners. Survey revealed that generally very few people consider rooftop gardening commercially to get profit and from the cost-return analysis this gardening system can be economically viable if proper and scientifically managed. The study conclude that active government and NGOs could play vital role to increasing this activities by providing training and motivate people with technical aspects of rooftop gardening.

• 농촌지도와개발
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• 제10권2호
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• pp.267-283
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• 2003

The purposes of the study were to; 1) examine the diffusion and adoption of new agricultural technology in rice farming, 2) survey the status of agricultural education institutions on technology transfer, and 3) explore the linkages between agricultural education and extension for more effective reinforcement strategies to further the diffusion and adoption of new agricultural technology in Korea. Literature review, field survey and panel discussions were employed to strengthen the linkages among agricultural education, research and extension in Korea. As the results of analysis of the diffusion and adoption of new agricultural technology in rice farming following recommendations were offered; 1. Extension services have helped Korean farmers in achieving self-sufficiency in rice and year-round supply of green vegetables as well as upbringing rural youth, however, government changed the status of extension educators from central government staff to county/city government staff since 1997. This brought about various problems such as: decreased morale and number of extension educators, thus weakening the extension education function, weakened linkages between national and local extension offices, less opportunity for in-service education of extension educators, and weakened linkages between agricultural research and extension, etc. 2. In order to insure that extension educators are high caliber professional individuals, it is crucial to establish a system that nationally recognizes these individuals as such, and that provides a professional development path. It is important to restore the morale of extension educators to continually achieve the national goals of food production, balanced national development and preservation of environment, at the same time to meet increasing needs of farmers. 3. Because of the critical importance of diffusing innovations to agricultural producers in order to ensure quality and steady food supply, it is crucial that these issues be addressed before the extension service further deteriorates. Further research activities on agricultural extension should be conducted for more effective agricultural extension system in Korea to achieve a greater rural, national and regional development. 4. Research and implementation activities should be emphasized and encouraged to improve the cooperation and collaboration among agricultural education research and extension to better serve farmers' educational and information needs. National level research activities should be encouraged to improve the effectiveness of agricultural technology transfer including internet education programs for farmers in Korea.

• 한국산림과학회지
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• 제105권4호
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• pp.486-495
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• 2016

본 연구는 산주들을 대상으로 사유림 지원제도 이용 실태를 조사하여 지원제도의 현황과 문제점을 분석하여 개선방안을 제시하는데 도움이 되고자 수행하였다. 사유림 경영 지원제도의 인지도에 대해서는 독림가 57.8%, 임업후계자 47.6%인 반면 일반산주는 불과 17.6% 만이 인지하고 있는 것으로 나타났다. 지원경험도 인지도와 마찬가지로 독림가 79.2%, 임업후계자 58.6%인 반면 일반산주는 28.6%로 현저하게 낮은 비율을 보였다. 지원을 신청하기 못한 이유로는 '지원제도를 모름'에 대한 응답이 독림가, 임업후계자, 일반산주 각각 36.1%, 43.0%, 78.6%로 나타난 인지도분석 결과와 유사한 경향을 보였다. 반면 사유림 경영 지원에 대한 효과정도는 독림가와 임업후계자보다 일반산주가 높게 나타났으며, 전반적인 만족도 역시 독림가 28.5%, 임업후계자 36.8%, 일반산주 41.5%로 나타나 오히려 다소 지원횟수가 적은 일반산주에게서 경영전반에 대한 만족도가 높은 것으로 나타났다. 이에 따라 우리나라 산주의 대부분을 차지하는 일반산주의 적극적인 산림경영을 유도하기 위해서 사유림 지원제도의 인지도 개선이 필요하며, 지자체와 산림조합의 적극적인 홍보대책과 지원정책 마련이 필요할 것으로 보인다.