• 한국식품저장유통학회지
• /
• 제30권1호
• /
• pp.15-27
• /
• 2023

Jeju Sasa borealis (S. borealis) is indigenous to the Halla Mountain area of Jeju Island, Republic of Korea. However, its dominance has retarded the development of other plant species and lowered biodiversity in this region. The aim of this study was to determine whether S. borealis silage (SS) supplementation affects the chemical composition and antioxidant activity in the fresh meat of Korean native goats (Capra hircus coreanae). The experiment was conducted on 12 Korean native goats at the finisher stage. The feeding groups were the Control (total mixed ration, TMR) and the Treatment (80% TMR + 20% SS). The animals were adapted for two weeks and then subjected to a six-month breeding experiment. Meat samples were excised from the neck, loin, rib, front leg, and hind leg of the slaughtered animals. The meat derived from the treatment group contained more taurine and anserine than that derived from the control group. Both groups did not significantly differ in terms of ω-6/ω-3 fatty acid ratio. The loin and front leg of the treatment group contained significantly higher vitamin E levels than those of the control group. DPPH, ABTS, and FRAP analyses disclosed that the loin and front leg had significantly higher antioxidant activity (p<0.05) than the other parts. Moreover, the loin and front leg cuts of the treatment group had higher antioxidant activity than those of the control group. The present study demonstrated that S. borealis supplementation could effectively improve Korean native goat meat quality.

• 농업과학연구
• /
• 제49권4호
• /
• pp.801-812
• /
• 2022

Omics-driven synthetic biology is a multidisciplinary research field that creates new artificial life by employing genetic components, biological devices, and engineering technique based on genetic knowledge and technological expertise. It is also utilized to make valuable biomaterials with limited production via current organisms faster, more efficient, and in huge quantities. As the bioeconomic age begins, and the global synthetic biology market becomes more competitive, investment in research and development (R&D) and associated sectors has grown considerably. By overcoming the constraints of present biotechnologies through the merging of big data and artificial intelligence technologies, huge ripple effects are envisaged in the pharmaceutical, chemical, and energy industries. In agriculture, synthetic biology is being used to solve current agricultural problems and develop sustainable agricultural systems by increasing crop productivity, implementing low-carbon agriculture, and developing plant-based, high-value-added bio-materials such as vaccines for diagnosing and preventing livestock diseases. As international regulatory debates on synthetic biology are now underway, discussions should also take place in our country for the growth of bioindustries and the dissemination of research findings. Furthermore, the system must be improved to facilitate practical application and to enhance the risk evaluation technology and management system.

• 현장농수산연구지
• /
• 제26권3호
• /
• pp.5-16
• /
• 2024

This study aims to present basic data for establishing policies related to the dairy industry in Korea in the future through analysis of the process and trends of policy changes surrounding the dairy industry in Japan. To this end, the establishment and structural changes of Japanese dairy policies from the past to the present, such as the tribal payment system, which is the beginning of the Japanese dairy policy, were examined. In addition, through analysis of the supply and demand trend of the Japanese dairy industry and policies affecting crude oil production, implications for affecting the dairy industry in Korea were presented. The reality is that Korea's dairy industry is also in crisis. According to the 2023 Dairy Management Survey released by the Dairy Policy Institute of the Korea Dairy Beef Association, the difficulties in ranching are ① debt (45.6%), ② environmental (23.1%), ③ health problems (16.8%), ④ lack of leisure time (7.4%), and ⑤ successor problems (4.6%), debt and environmental problems are the main reasons that pressure dairy farmers. Korea's milk and dairy consumption is higher than that of meat and rice, and the trend is increasing every year, but the crude oil self-sufficiency rate is decreasing every year. Even in terms of food security, securing self-sufficiency for domestic crude oil is a very important issue. Therefore, policy support for the sustainable development of the dairy industry is essential in Korea along with preparing policies to create a stable supply and demand environment.

• 한국토양비료학회지
• /
• 제44권2호
• /
• pp.248-255
• /
• 2011

시설재배 토양의 장기적인 물질순환적 친환경 토양관리를 위하여 유기물자원 (가축분부산물비료, 볏짚, 버섯배지, 팽연왕겨, 우드톱밥, 코코피트)을 토양의 무기태질소 대비 C/N율 10, 20, 30 조절량을 시용하는 처리를 두어 수박을 시험작물로 비닐하우스에서 2기작으로 재배하여 수행한 결과는 다음과 같다. 시용한 유기물자원의 T-C는 $289{\sim}429g\;kg^{-1}$이었으며, 유기물자원을 토양의 무기태질소 대비 C/N율 10 조절량을 시용하여 수박을 2기작 재배 후 토양의 질산태 질소는 시험전 토양에 비하여 가축분 부산물비료 처리를 제외 하고 21~37% 감소하였으며, 토양의 EC는 26~33% 경감효과가 있었다. 우드톱밥을 토양의 EC가 상이한 3개의 토양에 토양의 무기태질소 대비 C/N율을 10, 20, 30 조절 처리하여 수박을 재배한 결과 시험전 토양에 비하여 토양의 EC가 각각 33, 42, 39% 경감되었다. 수박의 과중은 개당 10.1~13.4 kg으로 토양의 EC가 낮은 토양I>토양II>토양III 순으로 수박의 과중이 높았으며 C/N 20 조절처리에서 3개의 토양은 양호한 경향이었다. 수박의 당도는 $11.8{\sim}12.3^{\circ}Brix$로 처리간에 차이는 없었으며 수박의 과실 특성상 상품에는 문제가 없었다. 탄소함량이 높은 유기물자원 공급으로 토양의 연작장해의 한 원인인 염류집적이 경감되어 품질과 수량성 증수을 기대할 수 있었다. 시설재배토양의 특성을 대표 할 수 있는 토양의 EC농도에 따라 유기물자원 시용시 토양의 무기태질소 대비 C/N 20 조절 시용기준을 적용하여도 물질순환적 유기재배의 토양관리에 문제가 없을 것으로 평가되었다.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2017년도 9th Asian Crop Science Association conference
• /
• pp.323-323
• /
• 2017

In many sub-Saharan African countries, boosting rice production is a pressing food security issue. To contribute to the increase in rice production, we have developed lines of NERICA 1 introgressed with the gene for spikelet number, Gn1a, and the gene for primary rachis-branch number, WFP by cross breeding. The performance of rice lines introgressed with the genes for yield related traits can be affected by cultivation environment and management. Thus, in this study, we aimed to evaluate the lines of NERICA 1 introgressed with Gn1a or/and WFP for yield and yield components under different nitrogen fertilization conditions in Kenya. A field trial was conducted at a paddy field in Kenya Agricultural and Livestock Research Organization-Mwea, Kirinyaga County ($0^{\circ}39^{\prime}S$, $0^{\circ}20^{\prime}E$) from August 2016 to January 2017. Eight lines of NERICA 1 introgressed with Gn1a and/or WFP, and their parents, NERICA 1 and ST12, were grown under 0 (NF) and $75(SF)kg\;N\;ha^{-1}$. At maturity, five hills per plot were harvested to determine the yield and yield components. The number of primary and secondary rachis-branches per panicle was measured on the longest panicle in each hill. Under SF, the introgression of WFP to NERICA 1 increased the number of primary and secondary rachis-branches by 27 and 25%, respectively. On the other hand, Gn1a did not increase the number of primary rachis-branches, whereas the number of secondary rachis-branches was increased by 38% on average. The number of primary and secondary rachis-branches of the lines introgressed with both genes increased by 25 and 56%, respectively. Although grain number per panicle increased 33% by Gn1a, 34% by WFP, and 43% by Gn1a+WFP, the yield increase by Gn1a, WFP, and Gn1a+WFP was only 14, 7, and 14%, respectively. The suppression of the yield increase was mainly attributed to the decline in the filled grain ratio. Under NF, WFP increased the number of primary and secondary rachis-branches by 20 and 19%, respectively. The introgression of both genes increased the former and the later by 19 and 35%, respectively. However, Gn1a did not change them under NF. Thus, even under NF, grain yield increased 11% by WFP and 24% by Gn1a+WFP due to the increased grain number although filled grain ratio declined. Our findings suggest that the introgression of Gn1a and WFP could contribute to the rice productivity improvement in sub-Saharan Africa even under low fertility conditions. Improving filled grain ratio of the lines introgressed with these genes by further breeding and fertilization management will be the focus of subsequent work.

• Journal of Animal Science and Technology
• /
• 제52권5호
• /
• pp.427-434
• /
• 2010

본 연구는 거세, 월령별 적정 사료 급여관리 및 아미노산 강화 반추위 보호지방산(ruminally protected amino acid-enriched fatty acid, RPAAFA)의 급여가 당대검정 탈락축의 산육능력 및 육질 향상에 미치는 영향을 조사하기 위해서 수행되었다. 당대검정 탈락축은 생후 14개월령에 거세를 실시하였다. 시험구 배치는 거세 한우 16두(15개월령, 평균 체중 $412.9{\pm}24.9kg$)를 12개월 동안 RPAAFA를 급여하지 않는 대조구(control) 및 100g 급여하는 처리구(treatment)의 2처리로 완전임의 배치하였다. 거세한우는 생후 27월령에 도축하였다. 대조구에 비해 처리구의 일당증체량이 높은 경향을 보였으며, 사료요구율은 낮은 경향이었다. RPAAFA의 급여가 배최장근단면적, 등지방두께, 육색, 지방색, 조직감 및 성숙도에 미치는 영향은 없었다. 육량 A등급 및 육질 l등급 이상의 고급육 출현률은 대조구에 비해 처리구에서 높은 경향이었다. 배최장근의 수분, 지방, 단백질 및 회분 함량은 처리간 유사한 수준이었다. RPAAFA의 급여가 배최장근의 보수력, 산화환원전위, 총육색소 및 지방산 함량에 미치는 영향은 없었다. 따라서 거세, 적정 사료급여 관리 및 RPAAFA의 급여는 당대검정 탈락축의 산육능력 및 육질등급 향상에 긍정적인 영향을 미치는 것으로 사료된다.

• 시큐리티연구
• /
• 제28호
• /
• pp.103-130
• /
• 2011

본 연구는 글로벌 비즈니스 환경에서의 한국기업의 수익성과 기업안정성 제고를 위한 기업보안과 비즈니스의 전략적 협력에 관한 연구이다. 현대기업환경은 하루가 다르게 과학기술이 복잡해지고 국경에 상관없이 새로운 경쟁자들이 등장하면서 아무리 거대한 기업이라도 혁신적인 사고로 무장한 새로운 기업에게 하루 아침에 시장을 내주어야 하는 상황이 빈발하고 있다. 이러한 새로운 환경에서 살아남기 위해서는 새로운 관점의 기업경영관리기법에 대한 패러다임의 변화이다. 한국기업이 과거를 답습하는 낮은 수준의 보안리스크관리방법으로는 기업수익에 도움이 되는 보안관리가 되지 못한다. 21세기 70억에 육박하는 인구가 살고 있는 지구촌은 급격한 생태계변화에 직면해있다. 급격한 기후환경의 변화는 순식간에 수십만 명의 이재민을 발생시키고, 신종전염병으로 수백만 마리의 가축을 생매장시키는 광경을 우리는 매순간 목격하고 있다. 이러한 변화는 지구촌에 살고 있는 인간의 삶의 근본적인 방식의 변화를 추동하고 있다. 우리의 경제적인 삶의 근간인 기업생태계도 여기에 예외가 될 수는 없다. 21세기 기업환경에서 생존하기 위해서는 경영진 수준의 보안리스크관리가 필요하며, 보안리스크관리를 통한 기업경쟁력을 제고를 위해서는 기업의 보고라인을 새롭게 정립하여야 할 것이다. 기업도 변화하는 환경에 민감하지 않으면, 하루아침에 시간의 뒤안길로 사라질 수 있음을 명심하여야 한다. 현대기업의 새로운 리스크 중에 특히 한국기업들이 안이하게 대처하는 분야가 보안리스크이다. 과거와 다르게 훨씬 대규모이고 전파 속도가 빠른 보안리스크는 경영진이 다루어야 하는 주요한 기업리스크 중에 하나이다. 현대기업에 핵심적인 영향력을 미치는 보안리스크에는 기업 브랜드와 평판의 보호, 생산과 운영의 연속성, 고객신뢰의 유지가 우선한다. 본 연구에서는 이러한 보안리스크를 효과적으로 다루기 위한 기업보안과 비즈니스의 전략적 협력에 관하여 제시하였다.

• 한국토양비료학회지
• /
• 제43권3호
• /
• pp.384-389
• /
• 2010

Outbreak of contagious diseases to livestock animals is becoming prevalent worldwide and consequently, tremendous numbers of the infected or culled stocks are buried on the ground as the most common disposal method. The buried animals can generate a wide range of detrimental components such as leachate, nutrient salts, and pathogenic bacteria, consequently contaminating the surround environment. This implies that regular investigations are required to monitor any possible detrimental environmental aspect occurred around burial sites. Therefore, the current study was conducted to investigate whether the soil and groundwater nearby the burial sites had been contaminated by the substances originated from the burial sites, which can be applied for the establishment of the ideal burial site construction design and post management scheme. For this, two different burial sites located in Cheonan and Pyeongtaek were selected. Cheonan and Pyeongtaek sites were constructed in 2004 and 2008, respectively and both contained dead poultry infected by avian influenza (AI). Soil and groundwater samples were collected around the sites followed by determination of the nutrient concentrations and bacteria (Salmonella, Camphylobacter, and Bacillus) existence in both soil and groundwater. Some of the soil samples showed higher EC, $NH_4$-N, $NO_3$-N concentration compared to those of the background (control) soils. Also the concentration of $NH_4$-N in some of the groundwater samples appeared to exceed the USEPA guideline value for drinking water (10 mg $L^{-1}$). These results indicated that the soil and groundwater were influenced by the burial site originated nutrients. In the soil, Bacillus was isolated in most soil samples while there were no detections of Salmonella and Camplylobacter. Due to the Bacillus existing mainly as a spore in the soils, it was considered that the frequent detection of Bacillus in the soil samples was attributed to the nutrients originated from the burial sites.

• Asian-Australasian Journal of Animal Sciences
• /
• 제24권5호
• /
• pp.655-661
• /
• 2011

Two experiments were conducted to investigate the effect of dietary supplementation of Bacillus, Saccharomyces and lactic acid bacteria (LAB) on performance and nutrient digestibility in grower and finisher pigs. In Exp. 1, 80 pigs (32 females and 48 males), $28.7{\pm}0.9\;kg$ body weight (BW), were randomly divided into 4 treatment groups balanced for sex and weight (5 pigs per pen, 4 pens per treatment). They were fed one of four diets: a basal grower (20-50 kg BW) and finisher (>50 kg BW) diet without any addition of probiotic or antibiotic (diet C), the basal diet supplemented with Bacillus subtilis H4 (diet B), diet B supplemented with Saccharomyces boulardi Sb (diet BS) and diet BS supplemented with a LAB complex (diet BSL). The LAB complex consisted of Enterococcus faecium 6H2, Lactobacillus acidophilus C3, Pediococcus pentosaceus D7, and Lactobacillus fermentum NC1. In Exp. 2, 16 male pigs, $29.2{\pm}0.8\;kg$ BW, were kept in individual pens and divided into 4 groups (4 pigs in each group). All 4 groups were given exactly the same growing-period diets (diet C, B, BS and BSL) as in Exp 1. The total faeces and urine were collected during 5 days (day 20-24) to determine nitrogen retention and total tract digestibility. In the growing period, average daily feed intake (ADFI), average daily gain (ADG) and feed conversion ratio (FCR) were not affected by diet B and BS (p>0.05), but ADG increased (+5.9%) (p<0.05) and FCR improved (+5.9%) (p<0.05) on diet BSL compared with the control, although ADFI was not different (p>0.05). Digestibility of crude protein and organic matter was higher (p<0.05) in diet BSL and digestibility of crude fibre was higher (p<0.05) in diet BS and BSL than in diet C. Nitrogen retention was not affected by diet (p>0.05). The faecal LAB counts were increased in grower pigs fed diet BSL (p<0.05) and faecal E. coli counts were decreased in pigs fed diets BS and BSL (p<0.05). In the finishing period, no effects of diet were found in ADFI, ADG, FCR, nutrient digestibility, and nitrogen retention (p>0.05). Faecal LAB and E. coli counts in the finisher pigs were not affected by diet (p>0.05). In conclusion, the current study demonstrates that a mixture of bacteria and yeast has the potential to be used as a probiotic dietary supplement in grower pigs.

• Asian-Australasian Journal of Animal Sciences
• /
• 제26권1호
• /
• pp.59-64
• /
• 2013

Eight male cattle of the Local Yellow breed with an average live weight of 121 kg and an average age of 18 months were used to evaluate the effects of different levels of sun-dried cassava (Manihot esculenta) foliage supplementation on mineral metabolism in growing cattle fed rice straw and para grass as basal diet. Rice straw ad libitum and para grass (Brachiaria mutica) at 1% DM of BW comprised the basal diet. The study was arranged as a $4{\times}4$ double Latin square design, with cassava foliage contributing 0, 0.8, 1.6 or 2.4 g CP/kg BW. The cassava foliage intake was lower than the planned levels. DM consumption was significantly affected by cassava foliage supplementation, with the largest intake observed at the two highest levels of cassava foliage supplementation. Rice straw intake showed the opposite pattern, with lower intake at higher cassava foliage supplementation. No refusals occurred for para grass in any of the treatments. Ca, P, Mg, K, S and Mn intake increased significantly with increasing intake of cassava foliage, but Na intake was not affected by treatment. Faecal excretion of Ca, Mg, S and Mn increased significantly with increasing cassava foliage intake. There were no differences between P, K and Na excretion in faeces. There was a significant diet effect on Mg, S and Mn digestibility. Mg and Mn digestibility increased with increasing cassava foliage supplementation, while S digestibility decreased. Ca, P, K and Na digestibility was not affected by diet. There was a significant effect of treatment on P retention, with the highest value observed for supplementation with 1.6 g CP/kg BW cassava foliage. Ca and Mg showed similar trends, with the highest retention again for supplementation with 1.6 g CP/kg BW cassava foliage. There were weak but significant positive correlations between nitrogen retention and the macro minerals Ca, P and Mg. Furthermore, retention of all these minerals was positively correlated. Mineral losses in urine were not affected by dietary treatment with the exception of P excretion, which was affected by treatment. In conclusion, cassava foliage is a good Ca source which compensates for the low Ca content in rice straw and para grass, but P deficiency appears to be exaggerated in cattle with higher cassava intake. The results suggest that under these conditions growing cattle on a high cassava intake would benefit from P and S supplementation.