• Korean Journal of Fisheries and Aquatic Sciences
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• v.52 no.5
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• pp.468-473
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• 2019

A $2{\times}4$ factorial feeding trial was conducted to examine the effect of feed type and feeding frequency on the performance of sub-adult starry flounder Platichthys stellatus. Two feed types, sinking pellets (SP) and floating pellets (FP), were given to 480 fish housed in tanks. Triplicate groups of fish were fed each feed type at one of four feeding frequencies (one meal every two days, one meal per day, two meals per day, and three meals per day) for nine weeks. Weight gain (WG) and specific growth rate (SGR) of fish were affected by feeding frequency. However, WG and SGR were the same in fish fed SP at two and three meals per day; similarly, there was no difference in WG or SGR of fish fed FP at one meal, two meals, or three meals per day. Feed utilization of fish was affected by both feed type and feeding frequency. These findings suggest that two meals per day of the SP or one meal per day of FP are sufficient for optimum growth performance of sub-adult starry flounder.

• Korean Journal of Poultry Science
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• v.11 no.1
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• pp.19-25
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• 1984

Proximate, calcium, phosphorus and amino acid composition were determined for sardine fish meal (SM), herring fish meal (HM), anchovy fish meal (AM), alaskapolack by-product meal (ABM) and file fish by-product meal (FBM) produced domestically. These fish protein sources were fed to adult male of meat type (Waren G) broiler chicks to determine the true availability of amino acids. The true availability of essential amino acids were closely related to various fish meals with a few exceptions (e.g. valine, methionine, isoleucine and leucine). Average true availability of essential amino acids (9 amino acids) were 95, 93, 93, 91 and 91 percent for AM, SM, FBM; HM and ABM, respectively. Significant differences in the true availability of each individual amino acid were observed among fish meal tested (P＜0.01). Lysine availability was low in HM, ABM and FBM whereas phenylalanine was the lowest in FBM and ABM, respectively. AM showed the highest true amino acid availability among all fish meal tested.

• Korean Journal of Community Nutrition
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• v.25 no.2
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• pp.102-111
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• 2020

Objectives: The frequency of eating out among adolescents seems to be connected to a high rate of skipping breakfast and be interrelated to various nutritional problems. The purpose of this study was to assess the dietary habits of breakfast and eating out and investigate their relationships in male adolescents. Methods: This study conducted a cross-sectional survey. Dietary habits and eating out status were surveyed among 510 male students at a high school in Incheon and compared according to their breakfast skipping and breakfast type. Results: The percentages of subjects in the breakfast skipping group and breakfast group were 41.0% and 59.0%, respectively, and the breakfast group comprised a Korean meal group (74%) and a convenience meal group (26%). In the breakfast skipping group, the percentage of subjects buying and eating snacks due to hunger was 39.7%. Reasons for eating breakfast among subjects who ate breakfast were because parents prepared breakfast (41.9%) and out of habit (31.5%) in the Korean meal group, in contrast to because parents prepared breakfast (36.7%) and due to hunger (29.1%) in the convenience meal group (P < 0.001). Breakfast preparer was mother (91.4%) in the Korean meal group, in contrast to mother (67.1%) and self (20.3%) in the convenience meal group (P < 0.001). A high proportion of the breakfast group woke up at 07~07:30 or 06:30-07, whereas a high proportion of the breakfast skipping group woke up at 07~07:30 or after 07:30, showing a significant difference according to breakfast skipping (P < 0.001). A high proportion of the breakfast group spent 10,000 won (32.5%) a week eating out while a high proportion of the breakfast skipping group spent 20,000 won or more (28.2%), showing a significant difference (P < 0.01). Conclusions: About 40% of male high school students skipped breakfast and consumed snacks as a solution after breakfast skipping. The students who skipped breakfast spent more money on eating out. These results show that breakfast status may be related to eating out. Therefore, practical education on food choice and meal preparation along with regular breakfast instruction is needed in male adolescents.

• Journal of the Korean Society of Food Culture
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• v.27 no.1
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• pp.38-48
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• 2012

This study was conducted to examine dietary behaviors according to residence status and ethnicity of university students in Yanbian, China. For the subjects, 334 university students (Male=141, Female=193) answered a questionnaire about perception of weight control, dietary patterns, health habits, residence status, and ethnicity. Perception of weight, meal frequency, favorite kind of food, meal finishing time, skipping breakfast, type of breakfast, snack frequency, late-night snack frequency, exercise frequency, regular life, and sleeping time were all significantly associated with residence status. Motivation of weight control, meal frequency, regularity of meal time, meal volume, favorite kind of food, exercise time, and regular life were all significantly associated with ethnicity. University students who lived with their parents perceived their weight more properly, exhibited a more positive dietary pattern, and lived a more regular life than those students who lived in a dormitory with their friends. Chinese students exhibited a more regular dietary pattern and lived a more regular life than the Korean-Chinese students. As a result, both environmental and inherent factors are related with the dietary behaviors of university students in Yanbian, China. These data could be used to help university students in Yanbian, China attain a healthy diet.

• Journal of Korean Home Economics Education Association
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• v.13 no.2
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• pp.59-72
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• 2001

This study investigated the effects of factors on the academic achievement in the 'Food and Nutrition' units in the Practical Arts : factors such as gender. family and home environment. and participation in. interest in attitude toward. and encouragement by mother in meal management. The factors were surveyed for 453 grade four elementary students (226 boys and 227 girls) and their mothers in Busan. The extent of participation in meal management. of interest. of attitude. and of the mother's encouragement was broken into three groups. Upon completing the 'Table Setting with Fruits'unit. the students'academic achievements were evaluated and compared according to these factors. The results were as follows : 1. The girls participated in meal management more frequently than the boys. Most of the children exhibited a high interest. the girls showing a higher interest than the boys. Both sexes showed a positive attitude toward meal management. Mothers encouraged girls more often than boys to manage meals at home. 2. The academic achievement of the girls was higher than that of the boys. Children living in apartments and more affluent environments scored higher than those who were less well off and living in independent households. 3. Those who frequently participated in meal management. exhibited a high interest. and showed a positive attitude towards it. achieved higher scores than those who showed a lower interest. less positive attitude. and only occasionally participated in it. 4. Those who were encouraged frequently to manage meals by their mother showed a tendency to score higher than those who wee encouraged only occasionally. In conclusion. academic achievement in the 'Food and Nutrition'units in Practical Arts was affected by gender. domestic economy. type of residence. participation in meal management in the home. interest in it. attitude toward it. and encouragement in participation by the other. Thus academic achievement in food. nutrition. and meal management is dependent upon both the school and home environments. Children would learn more in the 'Food and Nutrition'units when their parents set a positive and encouraging environment in the home.

• Nutrition Research and Practice
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• v.6 no.3
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• pp.254-262
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• 2012

The objective of this study was to provide information regarding trends of rice consumption of Korean adults based on different meal types. Respondent reports 24-hour recall data from the Korean National Health and Nutrition Examination Survey were used to assess daily rice consumption and intake ratios of rice for different meal types and places of preparation. Rice intake had gradually decreased from 224.6 g in 1998 to 190 g in 2001 and to 179.4 g in 2005. The rice consumption of Korean adults decreased every year in all ages for all places of meal preparation in 2001 and 2005 compare to 1998. Analysis for each meal type showed that rice intake at breakfast had not considerably changed, but rice intake had decreased at lunch and dinner. While the rice consumption ratio at lunch and dinner decreased, it also decreased or did not change at snack times except for the 19-29 age groups. All the age groups revealed comparable change in the analysis for meal types. There was some diversity between all age divisions in daily rice intake depending on place of meal preparation. The rice consumption by place of meal preparation was generally highest at home, lowest at other places, but it decreased in all places. The rice consumption at home was highest in the over 50 age group, lowest in the 20-30 age group. These changes seem to be related to food intake patterns of rice and substitutional foods in the diets and development regarding socio-economic status. So the need for further study on differences in rice intake based on socioeconomic levels and age group are indicated.

• The Korean Journal of Community Living Science
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• v.14 no.3
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• pp.75-87
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• 2003

This study was conducted to find the number of meals skipped and the types of main meals consumed by people in Miryang and Daegu. The subjects consisted of elementary school students(ES), middle school students(MS), high school students(HS), college students(CS) and adults, divided into below the age of 40(AU) and above the age of 40(AA). Data were collected through a 7-day dietary record from 941 subjects. The definition of rice-based meal(RM) and wheat-based meal(WM) depends on the type of grain eaten in the main dish, rice or wheat flour, respectively, regardless of the menu. Out of all the meals consumed by the subjects during 7 days before the survey, 71.5% of the meals consumed were RM, 13.1 ％ of the meals consumed was WM and 12.5% of the meals was skipped. Of the meals skipped, breakfast-skipping was the highest with 27.1%. There's no difference by region and sex. But there were several differences by age. The rates of skipped meal were high for CS, AU, HS, and MS in order. Especially the breakfast-skipping for CS was highest as 47.9%. In the types of main meal, the rates of RM was highest at breakfast and lowest at lunch. The rates of RM was higher in Miryang than Daegu, and there was no difference by sex. The rates of RM was high for AA, HS, ES and AU in order. ES and HS, who had highest rates of WM, had the highest WM consumption at lunch. It is because of school food service at lunch. Since the younger population consumed more RM compared to the older population, it can be speculated that more WM will be consumed in the future. Also efforts need to be made to discourage skipping meals.

• Journal of the East Asian Society of Dietary Life
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• v.20 no.5
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• pp.823-835
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• 2010

The research aimed to measure the efficiency of using multi stores in a foodservice company using by DEA (data envelopment analysis) which is a new management science technique. The study also attempted to identify relevant variables affecting DEA efficiency in order to suggest methods for improving efficiency. The data were collected from 148 contract foodservice operations, which were operated in similar fashion in October 2009. The DEA efficiency was calculated as an output-oriented BCC Model. Sales, and CSI (customer satisfaction index) were used as output variables whereas food cost, labor cost, and management expense were used as input variables to calculate the DEA efficiency. Operation process variables of the unit consisted of the were consist of ratio of regular employee, ratio of housekeeper, meal counts, meal price, food cost per meal, contract period, number of menu items, forecasting accuracy, order accuracy, inventory turnover, use of processed food, deviation of food cost, number of new menus, and number of events. According to the BCC score and profitability, units were classified into four groups: High efficiency-high profitability (HEHP), High efficiency-low profitability (HELP), Low efficiency-high profitability (LEHP), and Low efficiency-low profitability (LELP). The HEHP group contained 54 units, which mostly contracted management fee type and had a high meal price. The units were also very large and, served three meals. Twenty of the units were operated with high labor cost: most of these were factories and hospitals. The LEHP group contained 20 units, that were mainly office stores of large scale and medium price. Fifty-four LELP group had a low meal price. A high performance group must have high efficiency, profitability, and satisfaction. The BCC score was over 0.969, the meal price was over 4,116 won, the food cost was over 2,077 won, and meal counts per month were over 10,212 meals.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.5
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• pp.690-702
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• 2009

Mandu has become more increasingly essential and popular. Various types of Mandu are on saleavailable for purchase and are receiving good response from customers. This study explored the buyers' perceptions and their usage behaviors regarding to Mandu. The results showed the followings: 1) The respondents considered Mandu a snack rather than a meal. 2) The perceptions of a meal were different by gender, age, annual income, and number of children. 3) Respondents frequently have consumed frozen Mandu more than handmade Mandu and the type of Mandu consumed differed by age, marriage, occupation and annual income. 4) Respondents generally preferred meat to vegetable for as the stuffing in Mandu and favorite stuffings differed by gender and age. 5) The 'snack factor' was the highest purchasing motive among three factors including 'meal', 'economy' and 'snack' factor. 6) The derived factors for Mandu purchasing attributes were 'safety', 'loyalty/practicality' and 'storage' factor. 'Loyalty/practicality' represented the highest among them and each purchasing attribute differed according to gender, marriage and annual income.

• Korean journal of food and cookery science
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• v.14 no.1
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• pp.57-67
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• 1998

The main purpose of this study was to provide a basic information for the efficient foodservice management in elementary schools. A survey was conducted to get the information on the cost management and centralization needs of dietitians working for school foodservice in Kyungki-do. Detail information was collected from 85 dietitians. Statistical data analysis was completed using the SPSS/PC/sup/＋ package for descriptive analysis, t-test, $\chi$$^2$test and ANOVA. The results of this study were as follows: 1. Meal costs per one person evaluated on the standards of monthly budget basis in May and June, 1996 did not show any significant differance between commisary foodservice schools and conventional ones. Labor costs of island type and rural type were significantly higher than those of urban type. The schools with less than 1,000 feeding numbers spent more labor costs than those with over 1,001-feeding numbers did. 2. In island type and rural type, total meal costs increased according as the scale of the schools decreased. 3. Results of the survey on dietitians' centralization noeds showed that the aspects of common-purchasing and common solid waste management marked the highest ratings, whereas the aspects of commissary foodserice system got the lowest rating.