• Title/Summary/Keyword: daily consumption

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Effects of Salinity on Survival, Growth and Oxygen Consumption Rates in the Mysid, Neomysis awatschensis (곤쟁이, Neomysis awatschensis의 생존, 성장 및 산소 소비율에 미치는 염분의 영향)

  • 지정훈;황운기;강주찬
    • Korean Journal of Environmental Biology
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    • v.21 no.1
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    • pp.66-71
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    • 2003
  • Effects of salinity on survival, growth and oxygen consumption rates were examined in the mysid, Neomysis awatschensis. Mysids were exposed to various concentrations of salinity (0, 3.4, 6.7, 10.1, 13.4, 20.2, 27.4 and 33.6$\textperthousand$) for 40 days. Survival rate was significantly declined at below 6.7$\textperthousand$ after 40 days. Body length and daily growth rate of mysids exposed at below 6.7$\textperthousand$ salinity were significantly decreased than those of mysids exposed at above 10.1$\textperthousand$ salinity. Oxygen consumpiton rate of mysid exposed at salinity raining of 10.1~39.6$\textperthousand$ during 40 days not greatly changed in comparison with that before salinity treatment, but that of mysid exposed at below 6.7$\textperthousand$ significantly decreased. These results indicated that low salinity concentration ($\leq$6.7$\textperthousand$) reduced survival, growth and oxygen consumption rates of the mysid suggesting potential influence on the natural mortality of Neomysis awatschensis in the estuarine and coastal areas.

Algal Consumption and Preference of Sea Urchins, Strongylocentrotus nudus, S. intermedius and Abalone, Haliotis discus hannai (둥근성게, 북쪽말똥성게 및 참전복의 일일 먹이소비량 및 해조류 먹이선택성)

  • Kim, Su-Kyoung;Kim, Young-Dae;Jeon, Chang-Yong;Gong, Yong-Gun;Kim, Dong-Sam;Kim, Jin-Hee;Kim, Myoung-Lae;Han, Hyoung-Kyun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.40 no.3
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    • pp.133-140
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    • 2007
  • In 2006, we studied herbivore consumption rate and preference for algal species using laboratory experiments. In the no-choice feeding experiment, three herbivores (two sea urchins, Stronglyocentrotus nudus and Stronglyocentrotus intermedius and an abalone, Haliotis discus hannai) showed significantly (P<0.05) distinct preferences for four algae (Laminaria japonica, Undaria pinnatifida, Costaria costata and Ecklonia stolonifera). The alga preferred by S. nudus was L. japonica followed by U. pinnatifida, C. costata and E. stolonifera with respective daily feeding rates of $5.7{\pm}:0.85\;g,\;4.4{\pm}0.89\;g,\;3.1{\pm}0.39\;g\;and\;2.1{\pm}0.32\;g(mean{\pm}SE)$. A similar trend was found for S. intermedius. Interestingly, the herbivore consumption rates for the algae differed with or without competition. The competition stimulated the feeding activity for S. nudus, but lowered the activity for S. intermedius. The multi-choice feeding experiment confirmed that L. japonica was significantly preferred by two herbivores: S. nudus and H. discus hannai (Duncan's multiple range test, ANOVA, p<0.05).

Tolerance of Juvenile gobiidae, Tridentiger trigonocephalus Exposed to Various Salinity (염분농도에 따른 두줄망둑, Tridentiger trigonocephalus 치어의 내성)

  • 강주찬;지정훈;김성길;박경수;박승윤
    • Korean Journal of Environmental Biology
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    • v.22 no.1
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    • pp.153-158
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    • 2004
  • The juvenile gobiidae, Tridentiger trigonocephatus were reared for 40 days under the salinity ranges between 0 and 33.6$\textperthousand$ to examine the effects of salinity on the survival, growth and oxygen consumption rates of the fish. Survival rates were significantly declined for the fish reared under 3.4$\textperthousand$, and daily growth rates were also reduced below 6.7$\textperthousand$ Body length and weight of gobiids reared below 6.7$\textperthousand$ were smaller than those reared above 13.4$\textperthousand$. Oxygen consumption rates in the salinity conditions $\leq$ 10.1$\textperthousand$ were significantly reduced with decreasing salinity. This study reveled that low salinity reduced survival, growth and oxygen consumption rates of the juvenile gobiids suggesting potential influence on the natural mortality of Tridentiger trigonocephalus in the estuarine areas where experience the extreme salinity fluctuations in Korean waters.

Feeding Habits and Consumption by Finless Porpoises (Neophocaena asiaeorientalis) in the Yellow Sea (한국 서행 상괭이 (Neophocaena asiaeorientalis)의 먹이습성과 섭식량)

  • Park, Kyum-Joon;An, Yong-Rock;Lee, Young-Ran;Park, Ji-Eun;Moon, Dae-Yeon;Choi, Seok-Gwan
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.44 no.1
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    • pp.78-84
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    • 2011
  • We investigated the stomach contents of finless porpoises collected in the Yellow Sea. Prey organisms in the stomachs of 109 finless porpoises were identified as 11 species of fish, 8 species of shrimp and 4 species of cephalopod. Index of Relative Importance analysis revealed that the porpoises fed mainly on the Japanese sand shrimp (Crangon affinis). The energy density of the prey was estimated to be 5.46 kJ. The daily energy requirement was estimated to be 18,051 kJ/day for a porpoise with an average weight of 32.49 kg. The estimated annual consumption by finless porpoises in the Yellow Sea was 25,454 tons. The average commercial catch in the Yellow Sea by Korean fisheries was 135,913 tons from 2005 to 2009. Assuming that the abundance of finless porpoises is stable, porpoises ate approximately 18.7% of the commercial catch. The fishery catch may be influenced by the consumption by finless porpoises, while fishery bycatch is a cause of porpoise mortality in the Yellow Sea.

Food Consumption and Nutrition Survey in Korean Rural Areas (농촌(農村) 식품섭취실태(食品攝取實態) 및 영양조사(營養調査))

  • Park, Yaung-Ja;Chun, Sung-Kyu
    • Journal of Nutrition and Health
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    • v.9 no.2
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    • pp.87-97
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    • 1976
  • This study is based on data from the food consumption survey on 727 members of 125 farm households from 7 different provinces. The survey was conducted in May, 1975 in cooperation with the O.R.D. The results obtained in this study are summarized as follows. 1. The average consumption of the basic food groups per capita per day was 563 g for cereals and grains(398g of rice and 129g of barley), 87.6g for meats and legumes, 317.8g for fruits and vegetables, 25.7g for milks and small fishes, 9.1g for fats and oils, and 45.1g for other group. 2. The average daily consumption of calories and nutrients was 2256 cal and 11.7g for animal proteins, 70.5g for total proteins, 21.6g for fats, 537.4mg for calcium, 18.1mg for iron, 5375lU for vitamin A, 1.27mg for thiamine, 1.05mg for riboflavin, 15.5mg for niacin, 77.7mg for ascorbic acid. When these figures are compared with the recommended allowances for Korean, the calories and nutrients intakes were satisfactory, except for the intakes of animal protein which was below two third of the recommended allowance. 3. The diets of the projected villages differed from those of the non-projected villages in the following respect: (a) The amounts of animal proteins and fats were larger in the projected villages than in the non-projected villages. (b) The percentage contribution of fats to the total amount of calories from three nutrients, carbohydrates, proteins and fats was higher in the projected villages than in tile non-projected villages. (c) The percentage contribution from carbohydrates to the total amount of calories was higher in the non-projected villages than in the projected villages. 4. Certain physical and clinical symptoms were observed among the people in the rural areas, which can be related to the shortages of animal proteins and fats in their diets. It is recommended to pay special attention to the nutrition of school children in the Korean rural areas.

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Comparison of Pain Management Strategies to Reduce Opioid Use Postoperatively in Free Flap Breast Reconstruction: Pain Catheter versus Nerve Block in Addition to Refinements in the Oral Pain Management Regime

  • Andrea B. Stefansdottir;Luis Vieira;Arni Johnsen;Daniel Isacson;Andres Rodriguez;Maria Mani
    • Archives of Plastic Surgery
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    • v.51 no.2
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    • pp.156-162
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    • 2024
  • Background Perioperative management in autologous breast reconstruction has gained focus in recent years. This study compares two pain management protocols in patients undergoing abdominal-based free flap breast reconstruction: a past protocol (PP) and a current protocol (CP)-both intended to reduce opioid consumption postoperatively. The PP entails use of a pain catheter in the abdominal wound and the CP consists of an intraoperative nerve block in addition to refinements in the oral pain management. We hypothesize that the CP reduces opioid consumption compared to PP. Methods From December 2017 to January 2020, 102 patients underwent breast reconstruction with an abdominal-based free flap. Two postoperative pain management strategies were used during the period; from December 2017 to September 2018, the PP was used which entailed the use of a pain catheter with ropivacaine applied in the abdominal wound with continuous distribution postoperatively in addition to paracetamol orally and oxycodone orally pro re nata (PRN). From October 2018 to January 2020, the CP was used. This protocol included a combination of intraoperative subfascial nerve block and a postoperative oral pain management regime that consisted of paracetamol, celecoxib, and gabapentin as well as oxycodone PRN. Results The CP group (n = 63) had lower opioid consumption compared to the PP group (n = 39) when examining all aspects of opioid consumption, including daily opioid usage in morphine milligram equivalents and total opioid usage during the stay (p < 0.001). The CP group had shorter length of hospital stay (LOS). Conclusion Introduction of the CP reduced opioid use and LOS was shorter.

Estimated macronutrients and antioxidant vitamins intake according to Hansik consumption rate among Korean adults: Based on the Korea National Health and Nutrition Examination Survey 2007~2012 (우리나라 성인의 한식 섭취율에 따른 다량영양소 및 항산화 비타민 섭취현황 : 2007~2012년 국민건강영양조사 자료를 이용하여)

  • Kim, Seong-Ah;Jun, Shinyoung;Hong, Eunju;Joung, Hyojee
    • Journal of Nutrition and Health
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    • v.49 no.5
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    • pp.323-334
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    • 2016
  • Purpose: The purpose of this study was to estimate intakes of macronutrients and antioxidant vitamins according to the Hansik consumption rate among Korean adults. Methods: Using data from the 2007~2012 Korea National Health and Nutrition Examination Survey, a total of 33,069 subjects aged over 19 years old were included in this study. We estimated individual daily Hansik consumption rates and intakes of macronutrients and antioxidant vitamins, including vitamin A and its subgroup such as retinol, ${\alpha}$-carotene, ${\beta}$-carotene, and ${\beta}$-cryptoxanthin, vitamin C, and vitamin E, by linking food consumption data with the nutrient and antioxidant vitamin database of commonly consumed foods. Results: Around 75% of subjects consumed Hansik in over 75% of their daily total consumed food. The most frequently consumed Hansik was cabbage kimchi (1.57 times/day), followed by multigrain rice (0.86 times/day) and white rice (0.80 times/day). The household income level and education level was inversely associated with the Hansik consumption rate. There was a positive relationship between Hansik consumption rate and vitamin A, ${\beta}$-carotene, ${\beta}$-cryptoxanthin, and vitamin C intakes. On the other hand, Hansik consumption rate was inversely associated with energy and fat intake. Conclusion: The results of this study suggest that Hansik consumption could provide more antioxidant vitamins and less energy and fat. Thus, further research will be needed to analyze the association between Hansik and health effects.

Global Rice Production, Consumption and Trade: Trends and Future Directions

  • Bhandari, Humnath
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2019.09a
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    • pp.5-5
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    • 2019
  • The objectives of this paper are (i) to analyze past trends and future directions of rice production, consumption and trade across the world and (ii) to discuss emerging challenges and future directions in the global rice industry. Rice is a staple food of over half of the world's 7.7 billion people. It is an important economic, social, political, and cultural commodity in most Asian countries. Rice is the $1^{st}$ most widely consumed, $2^{nd}$ largely produced, and $3^{rd}$ most widely grown food crop in the world. It was cultivated by 144 million farms in over 100 countries with harvested area of over 163 million ha producing about 745 million tons paddy in 2018. About 90% of the total rice is produced in Asia. China and India, the biggest rice producers, account for over half of the world's rice production. Between 1960 and 2018, world rice production increased over threefold from 221 to 745 million tons (2.1% per year) due to area expansion from 120 to 163 million ha (0.5% per year) and paddy yield increase from 1.8 to 4.6 t/ha (1.6% per year). The Green Revolution led massive increase in rice production prevented famines, provided food for millions of people, reduced poverty and hunger, and improved livelihoods of millions of Asians. The future increase in rice production must come from yield increase as the scope for area expansion is limited. Rice is the most widely consumed food crop. The world's average per capita milled rice consumption is 64 kilograms providing 19% of daily calories. Asia accounted for 84% of global consumption followed by Africa (7%), South America (3%), and the Middle East (2%). Asia's per capita rice consumption is 100 kilograms per year providing 28% of daily calories. The global and Asian per capita consumption increased from the 1960s to the 1990s but stable afterward. The per capita rice consumption is expected to decline in Asia but increase outside Asia especially in Africa in the future. The total milled rice consumption was about 490 million tons in 2018 and projected to reach 550 million tons by 2030 and 590 million tons by 2040. Rice is thinly traded in international market because it is a highly protected commodity. Only about 9% of the total production is traded in global rice market. However, the volume of global rice trade has increased over six-fold from 7.5 to 46.5 million tons between the 1960s and 2018. A relatively small number of exporting countries interact with a large number of importing countries. The top five rice exporting countries are India, Thailand, Vietnam, Pakistan, and China accounting for 74% of the global rice export. The top five rice importing countries are China, Philippines, Nigeria, European Union and Saudi Arabia accounting for 26% of the global rice import. Within rice varieties, Japonica rice accounts for the highest share of the global rice trade (about 12%) followed by Basmati rice (about 10%). The high concentration of exports to a few countries makes international rice market vulnerable to supply disruptions in exporting countries, leading to higher world prices of rice. The export price of Thai 5% broken rice increased from 198 US$/ton in 2000 to 421 US$/ton in 2018. The volumes of trade and rice prices in the global market are expected to increase in the future. The major future challenges of the rice industry are increasing demand due to population growth, rising demand in Africa, economic growth and diet diversification, competition for natural resources (land and water), labor scarcity, climate change and natural hazards, poverty and inequality, hunger and malnutrition, urbanization, low income in rice farming, yield saturation, aging of farmers, feminization of agriculture, health and environmental concerns, improving value chains, and shifting donor priorities away from agriculture. At the same time, new opportunities are available due to access to new technologies, increased investment by the private sector, and increased global partnership. More investment in rice research and development is needed to develop and disseminate innovative technologies and practices to overcome problems and ensure food and nutrition security of the future population.

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The Relationship between Beverage Consumption, Nutrient Intake and Body Mass Index in Elementary School Students in Gyeongnam Area (경남지역 초등학생들의 음료수 섭취와 영양소 섭취량 및 BMI와의 관련성)

  • Kim, Seok-Young;Ryu, Seon-A
    • Journal of Nutrition and Health
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    • v.41 no.6
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    • pp.530-538
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    • 2008
  • This study was performed to assess the effects of beverage consumption on nutrient intake and anthropometric measurements. Beverage intake and dietary intake were measured by a beverage frequency and quantity questionnaire and three 24-hour dietary recalls in 160 elementary school students in the Gyeongnam area. The number of drinking moments per month was 93.5 and drinking amount of all beverages was 626.6 mL per day. The amount of milk intake was 253.8 ml per day, which was the highest in all types of beverage consumption, followed by juice(133.6 mL), and carbonated beverage(77.7 mL). The amount of sweetened beverage which was defined as all beverages except milk and soy milk was 359.7 mL per day. Energy intakes from all kinds of beverages and sweetened beverages accounted for 20.3% and for 10.5% of the daily energy intake, respectively. The contributions of sweetened beverage intake to the daily energy intake in girls accounted for 13.5%, whereas in boys it was 7.7% and significantly lower. The number of drinking moments and the contribution of sweetened beverage intake to daily energy intake were negatively correlated with protein, vitamin A and niacin intake, respectively. The consumption of milk and soybean milk combined showed a significant negative correlation with the body fat ratio(%) and it also negatively correlated with waist-hip girth ratio(WHR). However, the sweetened beverage intake was not related any of the anthropometric measurement. In conclusion, consumption of the sweetened beverage dropped the nutritional quality of diet. However it was not related with anthropometric measurements in elementary students.

Association of among alcohol consumption and blood vitamin D and lead concentrations: Based on 2010-2012 Korea national health and nutrition examination survey (알코올 섭취와 혈중 비타민 D 그리고 납 농도 사이의 관련성: 2010-2012년 국민건강영양조사 자료를 이용하여)

  • An, Ho-Ki;Park, Jae-Yong;Yoon, Hee-Jung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.1
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    • pp.498-506
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    • 2015
  • This paper investigates the association of among alcohol consumption and blood vitamin D and lead concentrations. Subjects to 4,074 with adults over the age of 20 in the 5th Korea National Health and Nutrition Examination Survey, correlation analysis is used to validate the relations between an average daily alcohol consumption and blood vitamin D and lead concentration, and to study the effects of blood vitamin D to the lead concentration is carried out regression analysis. The correlation analysis shows that alcohol consumption has the correlation with blood vitamin D and lead concentration(p<0.01). As the results of regression analysis, age(p<0.01), education(p<0.01), occupation(p<0.05), alcohol consumption(p<0.01), vitamin D(p<0.05) appear significant influence on lead concentration in male. Alcohol consumption increases not only lead concentration but also vitamin D. Blood vitamin D also contributes to the rise in lead concentration, but in the reverse the metabolic activity of blood vitamin D by influence of lead receives a negative effect in our body.