• Asian-Australasian Journal of Animal Sciences
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• 제15권6호
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• pp.878-883
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• 2002

Due to rising trend of beef demand in Asia in the next two decades it is necessary to find additional sources of beef supply. In most Southeast Asian countries, male dairy and swamp buffalo have not yet been raised for a primary purpose of quality beef production. This study was aimed to compare growth and feeding performances as well as economic returns from feeding male dairy, beef cattle and swamp buffalo for quality beef. Thirty-six animals, 12 of each breed group, were used in feeding trial to compare the cost of beef production. Two levels of concentrate feeding, 1.75% of body weight (BW) and 1.00% of BW, were used for each breed group in order to compare feeding methods i.e. high and low levels. Within each breed group two animals of similar initial BW were randomly assigned to the two levels of feeding. The animals were fed from about 150 kg BW until reaching the final weight of about 400 kg. The results from this study showed that under the prevailing economic conditions in Thailand the cost of beef production from buffalo was lowest due to very low cost of feeder stocks, followed by dairy and beef. However, the cost of feeding per kg of BW gain was lowest in beef and highest in buffalo i.e. when disregarding the differences in cost of feeder stocks. Beef calves grew faster than dairy and buffalo, with better feed efficiencies. The results indicated that beef cattle could be more suitable for beef production for high-quality beef market, while buffalo could be more suitable for small farms where high roughage feeding is common. Male dairy calves appeared to require higher level of concentrate feeding than 1% BW in order to maintain good body conditions.

• 정보관리연구
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• 제33권3호
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• pp.87-104
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• 2002

중국시장 및 중국의 국제적 정치적 위상의 강화로, 우리는 경제의 활력을 보충해 나가고 21세기 성장 흐름을 새롭게 창출해 나가기 위해 중국과의 교류협력을 증진시킬 필요성이 더욱 높아지고 있다. 이를 위한 정보의 공유, 전문가 양성, 중국전문가 간의 네트워크, 중국정보 DB및 정보공유체제의 확립이 불가피한 현실이다. 이에 따라 대외경제정책연구원에서는 제한된 전문인력과 정보를 최대한 활용하여, 체계적이고 종합적인 대중국 교류협력 증진에 발판이 될 중국정보 포탈시스템인 중국전문가포럼웹사이트(China Specialist Forum WebSite : CSF)를 개발하였다. 중국전문가가 필요로 하는 정보를 한 곳에서 편리하고 신속하게 제공받을 수 있고, 단순 정보제공의 차원을 넘어서 중국방면의 학술, 무역, 기타 이슈들을 상호교류할 수 있도록 설계한 국내 최대규모의 중국정보포털사이트인 CSF의 분석과 대만의 중국무역포털사이트인 $\ulcorner$대륙과 대만의 전 세계 상업정보망-대륙대상전구자신망(大陸臺商全球資訊網)$\lrcorner$, 싱가포르의 IE Singapore를 비교 분석함으로써 중국정보 전문 포털사이트의 발전방향을 제시했다.

• 생명과학회지
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• 제18권4호
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• pp.572-579
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• 2008

경제 동물의 유전체 연구는 최근에 급속하게 발전하여 초기의 유전체 지도로 부터 유전자의 발견에 필수적인 앙적/질적 형질 유전자를 확인 동정가능한 수준의 지도가 개발되었다. 이러한 발전은 경제동물의 전체 게놈 염기서열 결정과 대량 ESTs의 개발에 의해 가능해졌다. 특히 염시서열 결정은 경제형질과 연관된 대규모의 SNPs 개발에 의한 QTL 연구에 유용한 정보를 제공할 것으로 사료된다. 비교 유전체 연구를 통해 인간 및 설치류 모델동물에서 나온 유전체 정보를 이용하여 경제 동물의 유전체 연구에 있어 중요한 발견을 이루었다. 이러한 노력은 좀더 밀도 높은 QTL지도의 작성을 가능하게 하여 쉽게 측정하기 어려운 경제형질과 연관된 유전자의 확인 및 동정을 가능하게 하고 궁극적으로 산업체에서 이용 가능한 표지인자의 개발을 가능하게 할 것으로 사료된다. 이와 더불어, 경제동물 유전체 연구 성과는 인간의 생리현상의 유전체 측면의 이해를 더욱 증진시킬 것이다.

• 한국노년학
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• 제37권1호
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• pp.251-270
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• 2017

본 연구의 목적은 베이비부머 대상 연구들에서 성공적 노화 모델을 어떻게 적용하고 있는지 연구경향을 분석하는 것이다. 구체적인 연구방법은 국내 논문의 성공적 노화 개념, 영향요인, 세대 특성 반영여부, 세대 내부 다양성에 대한 내용분석이다. 2000년부터 2016년 현재까지 국내 학술지에 게재된 124편의 논문 분석결과, 지금까지 연구들에서 성공적 노화의 개념은 주로 경제문제 차원이고, 연구모형에서 거시적 사회 환경 영향요인을 거의 고려하지 않으며, 세대 특성이나 세대 내부의 다양성을 구체적으로 반영하는 연구들도 적은 편이다. 앞으로 국내 베이비부머 대상 성공적 노화 개념에 대한 폭넓은 연구가 필요하고, 개념과 영향요인을 명료하게 구분하여야 할 것이다. 경제 가치 위주의 개인 단위 영향요인보다 노화 속 삶 자체 및 거시적 사회환경과 관련된 영향요인을 활용해야 한다. 베이비부머의 고유 특성을 이해하기 위하여 신노년문화적 가치 논의가 이루어져야 할 것이다. 마지막으로 베이비부머 세대 내 연령별, 성별에 따른 다양성에 관한 연구를 진행해야 할 것이다.

• 한국노년학
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• 제27권2호
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• pp.427-443
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• 2007

본 연구는 노인의 심리적 복지의 하위개념인 자아존중감에 영향을 미치는 요인을 노년기 일자리 참여요인과 인구사회학적 특성, 경제특성, 건강특성을 포함한 노인의 일반적 특성요인을 중심으로 살펴보았다. 자료 수집은 구조화된 설문지를 이용 일대일 면접을 통해 이루어졌으며, 노인일자리사업 참여노인 145명과 비참여노인 150명을 분석대상으로 선정하였다. 분석방법으로는 t-test, ANOVA, 다중회귀분석을 사용하였다. 연구결과, 노년기 일자리 참여집단(38.93점) 노인들이 비참여집단(33.19점) 노인들에 비해 자아존중감 수준이 통계적으로 유의한 수준에서 높게 나타났다. 일자리 참여특성별로 살펴보면, 자아존중감은 '참여기간'과 '경제적 도움정도'에 의해 유의한 차이가 있었다. 또한, 일반적 특성요인들과 일자리 참여여부 요인을 중심으로 다중회귀분석을 실시한 결과 자아존중감에 대한 설명력은 29.8%이며, '일자리 참여여부'와 '주수입원', '주관적 건강상태'가 영향을 미치는 것으로 나타났다. 특히 일자리 참여여부가 자아존중감에 가장 큰 영향력을 가진 변인으로 나타나 노년기 심리적 복지에 기여하는 중요한 요인임을 시사하고 있다.

• 한국환경복원기술학회지
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• 제27권1호
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• pp.55-70
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• 2024

The loss of biodiversity poses a significant threat not only to business sustainability and investment risk but also to societal well-being. Nature serves as a crucial driver for long-term business viability and economic prosperity. The Task Force on Nature-related Financial Disclosures (TNFD), established in September 2023, mandates that companies assess and disclose their impacts on nature. Despite this, many businesses lack a full understanding of their reliance on and impact upon natural capital and ecosystem services, leading to insufficient disclosures. This study evaluates the applicability of TNFD's assessment methodologies and indicators within a domestic context, highlighting the condition of nature and ecosystem services, and exploring potential synergies with national biodiversity policies. Our analysis suggests that TNFD necessitates a unique approach to the spatial and temporal data and methodologies traditionally employed in environmental impact assessments. This includes assessing the reciprocal influences of corporate activities on natural capital and ecosystem services via the LEAP framework. Moreover, in industries where the choice of specific indicators depends on unique sectoral traits, developing a standardized strategy for data and assessment indicators-adapted to local conditions-is crucial due to the variability in the availability of assessment tools and data. The proactive engagement of the private sector in ecosystem restoration projects is particularly promising for contributing towards national biodiversity objectives. Although TNFD is in its nascent phase, its global adoption by numerous companies signifies its potential impact. Successful implementation of TNFD is anticipated to deepen businesses' and financial institutions' understanding of natural capital and ecosystem services, thereby reinforcing their commitment to sustainable development.

• 가족자원경영과 정책
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• 제19권2호
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• pp.27-49
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• 2015

The purpose of this study is to identify poorly understood factors related to the recent rapid decline in fertility in Korean society. Along with Becker's child demand theory, personal psychological traits, such as independence, nurturance, and affiliation, were given special attention in this study. We examine the processes of resource transfers between married women and their parents on childbearing intention in order to verify the effects of both factors. Five hundred and seventy-six women in their early stage of marriage from the 2009 wave of the National Survey of Marriage and Childbirth were analyzed. Main results of the study are as follows. First, Becker's child demand theory is not supported. Instead, the women who were not given economic support from their parents in getting a residence at the time of their wedding turned out to be more willing to have a child, potentially because they were more independent. Second, the women who provided caretaking and emotional support to their parents had higher childbearing intentions, potentially because they were more nurturing. In conclusion, these personal psychological variables are important in understanding the childbearing behavior of women. We suggest that the government should pay more attention to the micro-personal factors raised in this study when executing policies to reverse the current trend of low fertility.

• Journal of Animal Science and Technology
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• 제55권4호
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• pp.231-235
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• 2013

Carcass weight (CW) is one of the most important economic traits in pigs, directly affecting the income of farmers. In this study, a genome wide association study was performed to detect significant single nucleotide polymorphisms (SNPs) affecting CW in pigs derived from a $F_2$ intercross between Landrace and Korean native pig (KNP). Using high-density porcine SNP chips, highly significant SNPs were identified on SSC12. Two candidate genes, LOC100523510 and LOC100621652, were subsequently selected within this region and further investigated. Within these candidate genes, five SNPs were identified and genotyped using the VeraCode GoldenGate assay. The results revealed that one SNP in the LOC100621652 gene and four SNPs in the LOC100523510 gene are highly associated with CW. These SNP markers can thus have significant applications for improving CW in KNP. However, the functions of these candidate genes are not fully understood and require further study.

• Asian-Australasian Journal of Animal Sciences
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• 제5권4호
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• pp.623-628
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• 1992

Records on weaning (3803) and yearling weight (2990) of beef cattle (Bibos banteng) from the Bali Cattle Improvement Project were examined. A mixed model analysis involving all main non-genetic effects (village, year of birth, season of birth, age of dam, sex of calf, all significant interactions and age at weighing as a covariate) as fixed effects and sire nested within village as a random effect was undertaken. Variance components were estimated by Henderson's Method III. Paternal half-sib components of variance and covariance were used to estimate heritabilities of weaning and yearling weights, as well as their genetic and phenotypic correlations. Heritability estimates ($\pm$ standard error) obtained by Henderson's Method III for weaning and yearling weights were $.11{\pm}.03$ and $.13{\pm}.04$, respectively while the phenotypic and genetic correlations were estimated as .32 and $.64{\pm}.10$, respectively. The parameters estimated in this study were at the lower end of the range of reported values from various breeds. It is concluded that further information should be gathered to assist in estimating genetic parameters for other economic traits of Bali beef cattle and to provide more accurate estimates for weaning and yearling weights. These parameters should then be used to formulate a selection program to enable the genetic improvement of Bali Beef cattle.

• Asian-Australasian Journal of Animal Sciences
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• 제27권11호
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• pp.1532-1539
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• 2014

Although growth rate is one of the main economic traits of concern in pig production, there is limited knowledge on its epigenetic regulation, such as DNA methylation. In this study, we conducted methyl-CpG binding domain protein-enriched genome sequencing (MBD-seq) to compare genome-wide DNA methylation profile of small intestine and liver tissue between fast- and slow-growing weaning piglets. The genome-wide methylation pattern between the two different growing groups showed similar proportion of CpG (regions of DNA where a cytosine nucleotide occurs next to a guanine nucleotide in the linear sequence) coverage, genomic regions, and gene regions. Differentially methylated regions and genes were also identified for downstream analysis. In canonical pathway analysis using differentially methylated genes, pathways (triacylglycerol pathway, some cell cycle related pathways, and insulin receptor signaling pathway) expected to be related to growth rate were enriched in the two organ tissues. Differentially methylated genes were also organized in gene networks related to the cellular development, growth, and carbohydrate metabolism. Even though further study is required, the result of this study may contribute to the understanding of epigenetic regulation in pig growth.