• Journal of the Korean Dietetic Association
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• v.14 no.2
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• pp.127-138
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• 2008

This study investigated attitudes and behaviors related to family meals among middle and high school students. Furthermore, it evaluated the dietary quality of family meals as compared to meals eaten alone. The data were collected between March and May, 2006, from 353 male and female students attending middle and high schools in Seoul and Gyeonggi-do, using pre-tested self-administered questionnaires. The following results were obtained. In terms of family meal frequency, 44.0% of the middle school students ate with their family 'more than once per day', and 19.3% participated in family meals 1 or 2 times per day. However, only 16.4% of the high school students had family meals 'more than once per day', and 32.9% participated in family meals '1 or 2 times per a week', showing a significant difference between the groups (p<0.001). Fifty-nine percent of the middle school students answered they ate with their family everyday or on week days, whereas 67.8% of the high school students had family meals only on holidays (p<0.001). The nutrient intakes of those participating in family meals were compared to the intakes of those who ate meals alone. For both males and females, calorie intake was higher for those who ate family meals. Animal protein intake was significantly different (p<0.001) between groups, with the results showing a two-fold higher intake for those eating family meals as compared to meals alone. In addition, the intake of animal fat was significantly higher in the family meal group (p<0.001); however, plant-based fat intake was higher in the meal alone group.

• Korean Journal of Organic Agriculture
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• v.16 no.3
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• pp.331-339
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• 2008

The effects of heat and formaldehyde treatments of soybean meal and rapeseed meal on ruminal release of minerals from the meals were studied on three sheep fitted with rumen cannula. Oilseed meals were treated at 133, $143^{\circ}C$ for 3h or added with formaldehyde at a level of 3, 5g/kg. The ruminal release of P, Ca, Mg, Cu, Fe and Zn from the oilseed meals was examined using the nylon bag technique. Effective degradabilities of minerals in the oilseed meals were reduced by both treatments. The results suggest that rumen bypass treatments of oilseed meals prevent the release of minerals from the meals during rumen digestion and suppress the availability of mineals for ruminants. Eventually, the increase of heavy metal pollution in soil is anticipated due to the increase of mineral content in the feces of ruminants by ruminal protein bypass treatments.

• Journal of the Korean Home Economics Association
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• v.24 no.3
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• pp.69-78
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• 1986

Meals served in school cafeteria for teachers were evaluated in terms of calorie and nutrient level and food composition. Daily energy expenditure of teachers was compared with caloric content of the meal. The followings are results of the study. 1) Twelve different foodstuffs were used in each meal of school cafeteria for teachers. The average amount of food served meal was 396.0g. The ratio of animal food to total food served was 13.2%. The meal was consisted of 44.8% of basic food group 4, 34.7% of basic food group 3, 19.3% of basic food group 1, 0.4% of basic food group 2 and 0.9% of basic food group 5. 2) The average caloric content of the meal was 629.9Kcal. The caloric ratio of carbohydrate, protein and fat to total calorie was 72.4% : 15.3% : 12.3% respectively. The ratio of animal protein to total protein was 43.2%. In meals of school cafeteria, the level o fall nutrients except iron and niacin was lower than RDA for male, whereas the level of all nutrients except protein and niacin was lower than RDA for female. 3) The average daily energy expenditures of teachers were 2,017.2Kcal for male and 1,735.3Kcal for female. The meal in school cafeteria supplied 93.7% of daily energy expenditure of male teachers and 110.0% of daily energy expenditure of female teachers. When planning meals in school cafeteria, recommended allowance, actual energy expenditure and food preference of teachers should be considered to improve the quality of meals. Also it seems desirable to give teachers the nutritional education for taking balanced diet.

• Animal Bioscience
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• v.37 no.4
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• pp.678-688
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• 2024

Objective: Reduced crude protein (CP) diets offer potential benefits such as optimized feed efficiency, reduced expenses, and lower environmental impact. The objective of this study was to evaluate black soldier fly larvae (BSFL) meal on a low-protein diet for duck performance, blood biochemical, intestinal morphology, gastrointestinal development, and litter. Methods: The experiment was conducted for 42 days. A total of 210-day-old male hybrid ducklings (5 replicate pens, 7 ducks per pen) were randomly assigned to 6 dietary treatments (3×2 factorial arrangements) in randomized design. The factors were CP level (18%, 16%, 14%) and protein source feed soybean meals (SBM), black soldier fly larvae meals (BSFLM). Results: Reduced dietary CP levels significantly decreased growth performance, feed intake, the percentage of nitrogen, pH (p<0.05), and tended to suppress ammonia in litter (p = 0.088); increased lipid concentration; and enhanced relative weight of gastrointestinal tracts (p<0.05). In addition, dietary BSFL as a source of protein feed significantly increased lipid concentration and impacted lowering villus height and crypt depth on jejunum (p<0.05). Conclusion: In conclusion, the use of BSFLM in a low-protein diet was found to have a detrimental effect on growth performance. However, the reduction of 2% CP levels in SBM did not have a significant impact on growth performance but decreased nitrogen and ammonia concentrations.

• Journal of the Korean Dietetic Association
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• v.6 no.2
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• pp.57-70
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• 2000

The purpose of this study were to : a) evaluate the nutrition status of one hundred and forty five recipients and one hundred and forty nine non-recipients of home-delivered meals service program, b) examine the teeth status of recipients of the program, c)analyze the nutritional values of meals, and identify the attitudes of recipients and non-recipients were found. Four meals offered by Nambu seniors center were met the recommended dietary allowances in calorie, protein, and vitamin C. The mean score of meal satisfaction was 3.7 out of five-point scale.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.43 no.4
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• pp.320-324
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• 2010

We investigated the proper feeding frequency and satiation rate for the growth of red- and white-colored carp fingerlings in a feeding experiment. Triplicate groups of fish averaging 6.3 g were fed diets at four feeding frequencies (1, 2, 3, or 4 meals a day) and two satiation rates (satiation and 80% satiation) for 6 weeks. The survival of the fish was not affected by either the feeding frequency or the satiation rate. The weight gain, feed efficiency, and protein efficiency ratio of fish were affected by the feeding frequency and satiation rate, and increased significantly with both. The feed efficiency and protein efficiency ratio with satiation feeding of fish fed four meals a day did not differ from those of fish fed three meals a day. The daily feed intake was affected by the feeding frequency and satiation rate. The moisture, crude lipid, and ash contents of whole body were affected by the feeding frequency. Moisture and crude lipid contents were affected by feeding satiation. Based on these results, we conclude that the proper feeding frequency and satiation rate for the optimum growth of red- and white-colored carp fingerlings is four meals a day with satiation feeding.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.52 no.1
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• pp.87-91
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• 2019

Effects of feeding frequency on the growth performance of juvenile starry flounder Platichthys stellatus were investigated. One thousand fifty fishes were distributed into 15 of 500-L flow-through tanks. Triplicate groups of were fed experimental diet with five feeding frequency (one meal every two days, one meal a day, two meals a day, three meals a day and four meals a day) for 9 weeks. Weight gain and specific growth rate (SGR) of fish fed two meals a day were higher than those of fish fed one meal 2 days and one meal a day, but not different from those of fish fed three meals a day and four meals a day. Feed consumption of fish fed two meals a day was not different from that of fish fed three meals a day and four meals a day. Feed efficiency (FE) and protein efficiency ratio (PER) of fish fed two meals a day were higher than those of fish fed all other diets, except for three meals a day. These results suggest that the optimal feeding frequency is two meals a day for the optimum growth performance of juvenile starry flounder under the experimental conditions.

• Journal of Nutrition and Health
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• v.22 no.3
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• pp.149-158
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• 1989

To investigate the nutritional quality of packaged meals produced by packaged meal manufactures, a nutritional evaluation was conduced. Samples examined in this study were 95 Products which composed of 86 Doraks, 7 Kimplabs and 2 Yubuchopabs Produced in packaged meal manufactures in Seoul City and Kungki-do province The distribution of food groups showed that amounts of animal foods were abound, but amounts of green vegetables, limited in Dosirak comparing to one meal RDA levels. Amounts of meats, fishes and shells are increased more than amounts of egged and legumina with increase of price of Dosirak. The total kinds of food and the amounts of certain food in Kimpab and Yubuchopab were lower than Dosirak. The energy and protein contents of Dosirak were found to be higher than one meal RDA levels, with exception of protein content in Dosirak of the price 1000 won. The contents of energy and protein in Kimpab and Yubuchopab are less than one meal RDA levels. Calcium and iron contents in Dosirak, and calcium content in Yubuchopab were present in excess compared to the one meal RDA. However, In Kimpab, calcium and iron contents were lower than the one meal RDA. On the whole, vitamin contents of Dosirak were sufficient whereas vitamin contents of Kimpab and Yubuchopab were lower than the one meal RDA. Number of side dishes used in Dosirak were 6-23 items depending on prices. Guidelines were suggested for effective nutritional quality control of packaged meals.

• Preventive Nutrition and Food Science
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• v.10 no.2
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• pp.179-186
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• 2005

This study was conducted to find the gender and age differences in dietary behaviors and food consumption pattern of Korean American adults living in western parts of USA. The structured survey forms and self-administered food frequency questionnaire were used to assess dietary behavior and nutrient intakes. It was found that younger subjects kept their meal time more irregularly and skipped breakfast more often than older subjects due to lack of time. There were significant age differences in skipping meals, kind of skipping meals, and the reasons for skipping meals. Young subjects consumed more American type food while older subjects consumed more traditional Korean food. Nutrient intakes of males' except for the elderly were significantly higher in energy, protein, Fe and P than those of females'. Vitamin A and vitamin C intake were significantly higher in females. Energy ratio of carbohydrate: protein: fat was 56.2 : 16.8 : 27.0. Females consumed more plant food as their dietary sources of protein, fat, Ca and Fe, compared to males. Ca intakes of participants' were below $75\%$ of RDA except for the youngest male and $30\~49$ aged male and females. Futhermore, Ca intake was below $70\%$ after age 50 in both genders. Effective nutrition education program targeting Korean Americans in the community should be developed and implemented to increase Ca consumption.

• Journal of Nutrition and Health
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• v.37 no.3
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• pp.236-250
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• 2004

The objective of this study was to investigate difference in the diet by the kind of meal and the economic status. Nutrient contents at each meals were compared and differences in food intake at different meal were analyzed by economic status. Data from the 1998 Korean National Health Examination Nutrition Survey were used. Using the poverty line based on the 1998 Korean minimum cost of living, the subjects (n = 10400) were classified into high class (36.1％), middle class (40.7％) and low class (23.1 ％). Most nutrient intakes were obtained for main meals regardless of economic status. For high class, breakfast, lunch, dinner and snacks bring about 21, 29, 30 and 19 ％ of total energy intake, for middle class 22, 29, 30 and 19％ and for low class 24, 30, 30 and 16％, respectively. The high-middle class people tend to get more food intakes and nutrients at dinner and snacks, while the low class at main meals. This result was associated with the consumption of a smaller number of meals and a greater number of snacks daily as the economic level was going up (p 〈 0.05). Meals contributed to energy, protein and fat intake, and snacks to water, retinol and vitamin C. The food intakes by food group were different at meals by economic class. Seaweed product were popular breakfast foods in both middle and low groups. Thus three meals such as breakfast, lunch and dinner still delivered most of the energy and most of the macro-nutrients regardless of economic status.