• The Korean Journal of Food And Nutrition
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• v.32 no.3
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• pp.189-201
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• 2019

The objective of this study was to investigate the health status and nutritional intake of the old population living in Soonchang, Jeollabuk-do, Korea. 69 subjects aged 65 years and older were recruited in July 2016. The WHR, was significantly higher in elderly male group than elderly female group (p<0.05), but both groups had abdominal obesity (0.85 and over). T-score mean of elderly male and female groups were below $-2.5mg/cm^3$ that they were osteoporotic. In the elderly male group, the higher concentrations of creatinine, homocysteine and uric acid were found to be significantly unfavorable factors (p<0.001, respectively). The blood vitamin $D_3$ levels of elderly male group was significantly higher than that of elderly female group (p<0.05). The physical activity and self-rated health were significantly higher in elderly male group than in elderly female group (p<0.05, p<0.01, respectively). The nutrient intakes of male group were found to be significantly favorable factors than in female group. The score of mini nutrition assessment was significantly lower in elderly female group than in the elderly male group. These results could be useful to plan effective strategies to increase the health-life expectancy and the prevention of disease of Korean elderly people living in rural areas.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.59 no.3
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• pp.221-230
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• 2023

Although the abundance of Metapenaeus joyneri resources with high commercial value was recently confirmed in the outer waters of Gomso Bay, located between Buan-gun and Gochang-gun, Jeollabuk-do, Metapenaeus joyneri resources have not been efficiently utilized due to the absence of fishing gears and methods for a selective Metapenaeus joyneri capture. Therefore, in this study, we adopted shrimp dredge as a trial fishing gear for the Metapenaeus joyneri capture, and analyzed the species composition and cluster community structure of aquatic organisms caught by the shrimp dredge, from May to September 2021 at the coastal waters of Gochang-gun, Jeollabuk-do. During the experimental period, 28 types of marine species of 29,190 individuals and 250,136 g of total biomass were caught. Among them, the population of Metapenaeus joyneri, the target species, dominated by 80.7%, followed by Thrysa chefuensis with 7.1%, and Leiognathus nuchalis with 6.0%, confirming that the fishing ratio of Metapenaeus joyneri was the highest among all species.

• Journal of Digital Convergence
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• v.21 no.1
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• pp.19-27
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• 2023

This is an implementation study towards the development of a strategy to improve the pneumonia adequacy evaluation index of regional public hospital and to confirm its effectiveness. One physician, eight nurses, one computer room staff, and one nursing professor working at a regional base public hospital located in N city participated in this study from March to October 2021. An implementation study was conducted based on the conceptual model of Zuber-Skerritt & Fletcher. The stages of planning, implementation, evaluation, and reflection were operated in two cycles, and the effectiveness was evaluated in the second and third quarters. Compared to the pneumonia adequacy evaluation index in 2019, all indicators reached 100% of the standard target in 2021. The results of this study therefore infer that to provide higher quality medical services in the future, it is necessary to apply medical quality improvement activities through practical research under multidisciplinary participation and cooperation and to review the applicability of clinical sites.

• Korean Journal of Veterinary Service
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• v.46 no.4
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• pp.315-324
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• 2023

This study was carried out to investigate the genotypic diversity of PCV2 and co-infection of PCV3 in the hilar lymph nodes of 700 randomly-selected slaughter pigs. Fourteen samples per each farm were obtained from 50 farms between February and August in 2022. Of the 50 farms, 44 farms that had been positive for PCV2 by RT-PCR were genotyped. As a result of PCV2 genotyping, positive rate of PCV2 DNA was 62.3% (436/700). Among the PCV2 DNA-positive samples, positive rate of a single PCV2 genotype was 79.1% (345/436), while multiple PCV2 genotypes were only detected in 20.9% (91/436). Of the 436 single infection cases, PCV2d genotype was most prevalent. Positive rates of PCV2 and PCV3 were 53.6% and 26.0% at the sample level, 5.1% and 8.0% at the farm level, respectively. And the co-positive rate of two viruses was 8.7% (61/700) at the sample level, 62.0% (31/50) at the farm level. These results demonstrate that PCV2 prevalence in slaughter pigs is very high and co-infection between different PCV2 genotypes and between PCV2 and PCV3 is relatively common. Therefore, genetic diversity and co-infection between other porcine circoviruses should be consistently monitored in the future.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.60 no.2
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• pp.101-113
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• 2024

This study investigated the species composition and community structure of aquatic organisms captured using coastal beam trawling in Gomso Bay, Jeollabuk-do, from January to December 2022. Throughout the experimental period, a total of 20,246 individuals belonging to 94 marine species were captured, with a combined biomass of 602,828 g. Fish exhibited the highest abundance, comprising 56 species, followed by crustacea (21 species), bivalvia (8 species), cephalopoda (5 species), gastropoda (3 species), and holothuroidea (1 species). The dominant species was Leiognathus nuchalis, constituting 14.0% of the total individuals, followed by Portunus trituberculatus at 12.1%, Oratosquilla oratoria at 10.4%, Crangon hakodatei at 9.9%, and Metapenaeus joyneri at 7.9%. The diversity index ranged from 1.72 to 2.55, with the lowest diversity observed in March and the highest in July. Cluster analysis based on species composition of the 27 most common species showed that aquatic organisms were divided into three groups: spring and summer organisms (Group A) and summer organisms (Group B) and autumn and winter organisms (Group C).

• Korean Journal of Environmental Agriculture
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• v.29 no.1
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• pp.54-60
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• 2010

We have researched the changes in nutrient content in each phase of fermentation in crops treated with liquefied pig fertilizer, and have determined the best method for applying livestock excrement to cultured crops. In the execution of this experiment, rice was cultivated to full maturity at a paddy field in Jeollabuk-Do Agriculture Research and Extension Services(Jeon-buk series) from 2007 to 2008. The rice plant nitrogen absorption quantity change, according to the growth stages of the cultivated rice, was 20.3% in the rice treated with the liquid pig manure and 22.2% the chemical fertilizer at highest congelation. The chemical fertilizer showed a higher absorption quantity than the liquid manure compost. The nitrogen density at highest congelation was 1.5% in the chemical fertilizer, and 1.8% in the pig manure liquid compost not a significant difference. The stem height at harvest time was 73.8 cm in the crops treated with the liquid pig manure compost. Those treated with the chemical fertilizer, yielded a height of 4.2 cm less than the crops treated with the liquid pig manure compost. The yield was 507 kg/10a in the liquid pig manure compost treated rice, compared with the chemical fertilizer, which showed a value of 1.2% lower. The protein content was 6.3% in the rice treated with the chemical fertilizer, but 6.4% in the rice treated with the liquid pig manure compost. This is not a significant difference. However, the lodging rice plant treated with the chemical fertilizer control showed a protein content of 6.8%, which was even higher than the normal rice. The head rice ratio in the brown rice and the polished rice ended up to be lower in the crop treated with the liquid pig manure than that treated with the chemical fertilizer, Quality, the palatability value, was similar in both groups. The above result indicate that, the effect of liquid pig manure compost corresponds to the effect of chemical fertilizer, when each are scattered uniformly.

• Korean Journal of Soil Science and Fertilizer
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• v.43 no.3
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• pp.268-274
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• 2010

The properties of upland soils are much more dependent upon topography than those of paddy soils, and they give us very useful information to manage the upland fields. Therefore, we investigated the selected physical and chemical properties of upland soils at 84 and 150 topographic sampling sites, respectively. The topographic sites included 34.7% of local valley and fans, 18.7% of hilly and mountains, 20.0% of mountain foot slopes, 14.0% of alluvial plains, 8.0% of diluvium, and 4.6% of fluvio-marine deposits. Based on the investigation, soil textures in Jeonbuk upland fields were mostly sandy loam, sandy clay loam, clay loam, and clay soils, especially sandy clay loam soils were evenly distributed in all of the topographic sites. Soil slopes in the sites ranged from 0 to 15%, which showed an optimal condition for farm land. Soil bulk density and compaction values were from 1.19 to 1.24 g $cm^{-3}$ and from 12.1 to 13.9 mm, respectively. As comparing with the optimal conditions of soil chemical properties for upland soils proposed by National Institute of Agricultural Science and Technology, Korea, 37%, 42.7%, 93.0% of the sites were within optimum levels with soil pH, content of soil organic matter, and electrical conductivity, respectively. However, 64.0%, 47.3%, 48.7%, and 42.7% of the upland soils contained excess levels of exchangeable K, Ca, and Mg, and available phosphorus, respectively. In addition, the contents of heavy metals, As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn, in the Jeonbuk upland soils were much less than threshold levels.

• Korean journal of applied entomology
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• v.47 no.3
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• pp.227-235
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• 2008

Development of T. urticae was studied on the leaves of eggplant grown in hydroponics with silica contents of 0 mM, 1.7 mM, and 5.1 mM. As the levels of sllica increased, those of N, P, K, Ca, and Mg decreased and those of Si increased. While contents of calory, crude protein, carbohydrates, and vitamin C decreased, those of ash, fiber, and sugar increased. Biomass and content of cholorophyll decreased as the level of silica increased while leaves became thicker. Laboratory leaf disc tests provided with various silica levels revealed that feeding preference of T. urticae was the highest at 0 mM and the lowest at 1.7 mM. The oviposition preference decreased as the levels of silica increased, on the lower leaf appeared to hinder the feeding and the oviposition of T. urticae. The development slowed down both in female and male. Adult life span of female shortend as the silica level increased and that of male was the longest as 5.7 days at 0mM and the shortest at 1.7 mM. Oviposition period also shortened as the silica content increased. The number of eggs laid was the most as 86.3 at 1.7 mM while average oviposition per day was the least as 77 at 0 mM. No differences in hatchability was detected whereas the ratio of sex was the highest as 0.71 in favor of female at 0mM. $R_o$ and T decreased as the levels of silica increased. Rm and $\lambda$ was the lowest at 5.1 mM while Dt was the longest as 1.8271 at 5.1 mM and the shortest as 1.6991 days at 1.7 mM. Silica content in eggplant turned to affect the development of T. urticae, however, it deterred T. urticae from feeding and oviposition and the rate of increase tended to decrease due to lesser nutrients in the eggplant leaf.

• Journal of Plant Biotechnology
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• v.32 no.1
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• pp.23-29
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• 2005

Shoots of balloon flower (Platycodon grandiflorum A. DC.) derived from in vitro germinated seeds were cultured on MS medium containing $0.1\;\cal{mg/L}$ NAA under various photosynthetic photon flux (PPF) 33, 66, and $99\;{\mu}mol\;m^{-2}s^{-1}$ with or without membrane filter. Number of air exchanges per hour (NAEH) of the culture vessel with membrane filter on the lid was $4.9 h^{-1}$ and that without membrane filter was $0.1 h^{-1}$ Plantlets grown in $4.9 h^{-1}$ NAEH showed greater growth than in $0.1 h^{-1}$ NAEH. According to increase of PPF, plantlets growth decreased in $0.1 h^{-1}$ NAEH while it increased in $4.9 h^{-1}$ NAEH. At the same PPF, fresh weight and sugar content in plantlets in $4.9 h^{-1}$ NAEH were above 1.9, 2.0 times higher than those in $0.1 h^{-1}$ NAEH, respectively. Also they were enhanced in $4.9 h^{-1}$ NAEH by increase of PPF whereas no significance in $0.1 h^{-1}$ NAEH. The percentage of water content of plantlets in $4.9 h^{-1}$ NAEH was $4.2\~5.5\%$ lower than those in $0.1 h^{-1}$ and no difference in PPF. The content of total chlorophyll in plantlets in $4.9 h^{-1}$ NAEH was higher $0.27\~0.79\;\cal{mg/g}$ F.W. than that in $0.1 h^{-1}$ NAEH. By increase of PPF, it was decreased in $0.1 h^{-1}$ NAEH while had no significant difference in $4.9 h^{-1}$ NAEH. Guard and subsidiary cells of leaves in $4.9 h^{-1}$ NAEH were more developed than in $0.1 h^{-1}$ NAEH. Especially, in $99\;{\mu}mol\;m^{-2}s^{-1}$ leaves in $0.1 h^{-1}$ NAEH had undeveloped subsidiary cells and wide open stomata whereas those in $4.9 h^{-1}$ NAEH had well-developed subsidiary cells.

• Korean Journal of Soil Science and Fertilizer
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• v.45 no.6
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• pp.1022-1026
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• 2012

To evaluate the application level of expeller cake fertilizer (ECF), we have investigated soil chemical properties, leaf mineral contents and yield of red mustard in plastic film greenhouse. Four levels of fertilizer were applied as 50% (ECF 50), 75% (ECF 75), 100% (ECF 100) and 150% (ECF 150) by base $1,848kg\;kg^{-1}$ of ECF. In 2010, red mustard was planted on April 28 in silt loam soil and harvested on July 7. Commerical yields were measured 12 times from May 14 to July 7. Electrical conductivity ($3.40{\sim}3.54dS\;m^{-1}$), available $P_2O_5$ ($580{\sim}618mg\;kg^{-1}$) and exchangeable cations ($K^+$, $Ca^{2+}$ and $Mg^{2+}$) were tended to increase by the application of ECF. However, the range of those was not so big increasing amount. The content of T-N, K, Ca and P of red mustard leaves was $63.2{\sim}66.4g\;kg^{-1}$, $55.1{\sim}56.4g\;kg^{-1}$, $8.6{\sim}9.5g\;kg^{-1}$ and $5.7{\sim}6.3g\;kg^{-1}$, respectively. The nitrogen utilization rate of red mustard was 38~52%, and it was decreased with increased application of ECF. The yield of red mustard was 13,670 to $14,460kg\;ha^{-1}$ on the basis of application amount of ECF and the yield did not increased in spite of increased ECF. The optimum dose of application of ECF for cultivation of red mustard was from $924kg\;ha^{-1}$ (ECF 50) to $1,386kg\;ha^{-1}$ (ECF 75). Environment-friendly and economical amount of applied fertilizer is more important than yield for cultivation of red mustard.