• Asian-Australasian Journal of Animal Sciences
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• 제33권8호
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• pp.1323-1331
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• 2020

Objective: Three types of dietary fiber were fed to sows during gestation and lactation stages to monitor their physiological and metabolic adaptations during the pre-partum period and to determine how these effects may influence the lactation period and sow performance. Methods: Soon after breeding, 54 sows were selected and were fed with 20% supplementation as fed of wheat bran (WB), soya hulls (SH), or rice hulls (RH) in diets during gestation and lactation. Sows were weighed, backfat thickness was measured ultrasonically and jugular blood samples were collected from all sows. The litter size was equalized to 10, by fostering piglets from sows on the same treatment. Results: Sows gained 22.0, 21.8, and 25.5 kg of net maternal body weight during gestation (for WB, SH, and RH sows, respectively; p = 0.007). There was no treatment effect on the body weight change during lactation (p = 0.158), however RH sows consumed an average of 133.66 kg of feed, WB sows took 121.29 kg and SH sows took 126.77 kg during lactation (p<0.001). The SH litters gained an average of 59.34 kg of weight during lactation, while other litters gained 51.58 and 49.98 kg (for WB and RH litters, respectively; p<0.001). Exception for aspartate aminotransferase and alanine aminotransferase, measured serum biochemical values were broadly in agreement with earlier reports. Despite the use of additional vegetable oil to balance the energy level, RH sows still had lower concentrations of serum triglycerides in late gestation. Conclusion: Different types of fibrous ingredients in the gestation diet influenced most of the investigated reference values for sows. The values of serum biochemical parameters were generally not affected by fiber type during the lactation stage. The SH supplementation for sows is an effective approach to give heavier litters at birth and weaning and to increase voluntary feed intake in early lactation.

• Journal of the Korean Dietetic Association
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• 제8권3호
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• pp.311-317
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• 2002

The purpose of this study was to analyse the nutrient intake of the elementary students participating in the School lunch program and to compare the amount of the plate waste generated in two school foodservice operations that were located in an urban(school A) and a rural area(school B), respectively. A plate waste analysis was conducted for each menu item to separate and quantify food waste discarded in service phases of each operation. The SPSS 10.0 for window was used for data analysis. Non-parametric test (Mann-Whitney) was adopted to determine if significant differences existed in amounts of food waste generated in school A and school B. An average of 415 meals, including 43 adult meals, were served daily in school A, while an average of 177 meals, including 24 adult meals, were served daily in school B. Throughout the study the percentage of plate waste in vegetable dishes was high in both school. The food served to the students in school A met most of the RDA set by Korean Nutrition Association except vitamin A, while that served to the students in school B satisfied RDA in all aspects. Between 10-20% of the nutrients served were discarded as plate waste(school A : 11-27%; school B : 5-14%). Students in school B took significantly more niacin than students in school A did. It should be noted, though, that the RDA was still met in both schools except the vitamin A in case of school A, even after considering the plate waste. The research results suggested that school foodservice dieticians should evaluate the acceptability of menu items based on food waste per meal, and help increase the students' awareness of the environmental impact of food waste. Further, teachers, parents and dieticians should be encouraged to provide environmental education to the students that focused on the reduction of food waste.

• Journal of the East Asian Society of Dietary Life
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• 제16권1호
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• pp.13-22
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• 2006

To analyze the dietary behavior and food preference of Korean youth, we surveyed 140 elementary school 6th grade students and 154 high school first grade students in Youngnam Provinces. The average height and weight for the elementary school students were 153cm and 45.3kg for boys and 153.4cm and 44.6kg for girls. The body types depending on the body mass index(BMI) were 45.7% for under-weight, 47.1% for standard, 3.6% for overweight and 3.6% for obesity. The average height and weight for the high school students were 172.5cm and 64.5kg for boys and 160.1cm and 51.7kg for girls. The body types depending on the BMI were 11.0% for under-weight, 70.8% for standard, 13.0% for overweight and 5.2% for obesity. In their food preference, they preferred one-dish food to main dishes and rice with cereals was more popular among high school students. There were higher standard scores in fruit, snack, fried, and Kimchi dishes and high school students showed a high preference especially for snack and fried foods. The Kimchi dishes were more popular among elementary school students and they showed high scores in those dishes regardless of how they were cooked. There was the lowest preference for Korean vegetable salad and the highest for food cooked with meat In conclusion, a difference was found in the food preference of elementary school and high school students and the nutrient intake of elementary school students was lower than that of high school students. Therefore, elementary schools should provide proper nutritional education for students.

• Journal of the East Asian Society of Dietary Life
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• 제24권5호
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• pp.604-613
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• 2014

This study was carried out to investigate consumption patterns of health functional foods (HFF) and analyze their related factors in male workers in order to provide basic data for appropriate understanding and optimal use of HFF. The subjects were 325 shipbuilding workers aged 20~50 in the Geoje area. About 84% of subjects reported that they were currently consuming or had experience of consuming HFF. The most commonly used type of HFF was vitamins (53.5%), followed by red ginseng (28.9%) and vegetable extract (15.4%). The major reasons for consuming and not-consuming HFF were 'to recovery from fatigue' (49.5%) and 'can not trust the effects' (39.4%), respectively. The intake period was 'less than 3 months' (35.5%), average monthly expense was 'less than 50,000 won' (49.1%), and purchase place was 'store of health functional foods' (32.2%) as the most common answers. The effects after consuming HFF were 'moderate' (51.3%) as the most common answer, and 16.1% of subjects experienced side effects, such as diarrhea, indigestion and nausea. Contributing factors for selecting and desire for future use of HFF were 'effectiveness' (52.2%) and 'when necessary' (67.8%) as the most common answers. Experience of using HFF was positively correlated with age (p<0.05), marital status (p<0.05), unbalanced diet (p<0.01), concern about health (p<0.05), and fear for disease (p<0.05). Purchase of HFF was positively correlated with fear of disease (p<0.01), whereas it was negatively correlated with frequency of exercise (p<0.05). The desire for future use of HFF was positively correlated with concern about health (p<0.05), fear of disease (p<0.01) and drinking (p<0.05). In conclusion, factors affecting consumption patterns of health functional foods (HFF) were age, marital status, unbalanced diet, concern about health, fear of disease and drinking.

• Journal of the Korean Society of Food Science and Nutrition
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• 제15권3호
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• pp.300-305
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• 1986

The contributing ratio and type of carbohydrate supply as an energy source were investigated for the period from 1974 to 1984. The major component of energy in food groups was cereals, but the cereals and potatoes were decreased almost steadily. The share from sugars, meats, oils, milk and eggs has been doubled with per capita income increase. Vegetable foods were consisted of 90% of total energy supply. In 1984, approximate 70% of the energy supply of cereals was provided by rice. The type and composition of carbohydrate supply were influenced by per capita income and food processing technology. Less carbohydrate intake and the ratio of complex carbohydrates to refined sugar and simple sugars also decreased.

• Journal of the East Asian Society of Dietary Life
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• 제25권2호
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• pp.372-385
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• 2015

The purpose of this study was to develop and evaluate a nutritional education program for preschool children in association with Center for Children's Foodservice Management, childcare facilities and home in order to provide nutritional knowledge and change food attitudes in children. The program was repeated three times using the same educational theme and consisted three steps. Step 1 involved visiting education with teaching tools by a dietician. Step 2 involved home education with a worksheet and participating in events with parents. Step 3 involved repeated education with a textbook by a preschool teacher education reports sent to the center. The subjects of this study were 3 to 5-year-old children at 89 childcare facilities located in Busanjingu. Interest in meals at childcare facilities, dietary guidance for parents of children, and dietary attitudes of children were evaluated before and after education. Number of parents interested in meals managed by childcare facilities (kitchen visiting, meals observation, progress of children's education) increased after education. Mean scores for meal awareness in parents in the form of three questions (proper food distribution, hand washing before mealtime, nutritional and hygienic satisfaction with meals) significantly (p<0.05) increased after education. Mean dietary guidance for parents' scores for all questions except table manner significantly (p<0.01) increased after education. Mean dietary attitudes for children in the form of six questions (try to eat various vegetable, eat meals without leaving, wash hands before mealtime, eat cleanly, reduce sodium intake and keep table manner) also significantly (p<0.001) increased after education. As a results, the nutritional education program applied in this study, positive influenced children's nutritional knowledge and dietary attitudes, and parents' dietary guidance of children.

• Korean Journal of Plant Resources
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• 제28권1호
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• pp.135-144
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• 2015

The Korean daily intake of vegetable oils has increased about 2.5-fold from 17 g/day to 46 g/day for the last several decades. Perilla (Perilla frutescens var. frutescens) has been cultivated in Korea for a long time as a dietary oil seed which has the highest content of ${\alpha}$-linolenic acid, accounting for nearly 60%. It is known that the main role of ALA is as a precursor to the longer-chain ${\omega}-3$, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), the metabolic products of ${\alpha}$-linolenic acid (ALA, ${\omega}-3$). Dietary ${\omega}-3$ fatty acids reduce inflammation and the risk of chronic diseases such as heart disease, cancer, and arthritis, but they also may act as functional components for cognitive and behavioral function. Thus, ${\alpha}$-linolenic acid is one of the essential nutrients in modern dietary patterns in which much linoleic acid is consumed. Nevertheless, perilla oil, rich in ${\alpha}$-linolenic acid, can be easily oxidized, giving rise to controversies with respect to shelf life, the deterioration of the product's commercial value, and further related toxicity. Recent research using genetic modifications has tried to develop new plant oil seeds that balance the ratio of ${\omega}-6/{\omega}-3$ fatty acids. Such trials could be a strategy for improving an easily oxidizable property of perilla oil due to high ${\alpha}$-linolenic acid. Alternatively, appropriate application of antioxidant to the oil can be considerable.

• Korean Journal of Community Nutrition
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• 제16권6호
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• pp.672-682
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• 2011

This study was conducted to examine the differences in perceived body weight and image and various lifestyles based on the self-rated health of university students when gender was adjusted. Five hundred fifty-five participants were asked their perceived health condition, and 58, 289, 160 and 48 students answered themselves as "very healthy", "healthy", "normal", and "unhealthy", respectively. As compared to the other 3 groups, "unhealthy" group showed higher proportions in dissatisfaction of body weight and negative perception of body image (P < 0.01). As health related lifestyles, "very healthy" group reported longer sleeping time than "unhealthy" group (P < 0.05), and had a higher proportion of people with regular exercise. Among the dietary behaviors, the frequencies of followings significantly different among the groups: "Regularity of meal time" (P < 0.01), "Eat protein foods more than twice a day" (P < 0.001), "Eat vegetables" (P < 0.01), "Eat fruit and fruit juice" (P < 0.01), "Eat vegetable oil added foods" (P < 0.01), "Eat seaweed" (P < 0.01), "Eat breakfast" (P < 0.01), "Modulation in animal fat and high in cholesterol intake" (P < 0.01). Particularly, higher proportion of subjects answered "very healthy" had higher frequencies (6-7 times/week) of these dietary behaviors. Overall results suggest that healthy lifestyle including adequate sleeping time, regular exercise, and good dietary behaviors might be potential factors affecting positive perception of health. In addition, positive perception of body weight and image were related with positive perception of health.

• Korean Journal of Community Nutrition
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• 제13권3호
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• pp.439-452
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• 2008

This study was conducted to identify major dietary patterns of generally healthy Korean middle-aged women and to examine associations of the dietary patterns with socio-demographic, psychological, and physical characteristics. Data were drawn from the 2001 Korean National Health and Nutrition Examination Survey (KNHANES), which is an ongoing national surveillance system. Healthy female subjects aged 40-64 years and provided the health interview examination and food frequency questionnaire (FFQ) data were included. We conducted factor analysis based on daily mean intake frequency of 26 food groups and identified 3 major dietary patterns, healthy, convenient, and alcohol-animal. The healthy pattern was characterized by higher intakes of fish, seafood, poultry, mushroom, seaweed, vegetable, tomato, potato, and fruit, the convenient pattern by processed meat and fish, ramen, noodle and rice cake, sweet snack, egg, bread, and fast food, and the alcohol-animal pattern by alcohol, poultry, meat, and fish. The healthy pattern was significantly related with higher socio-economic status, more stable family structure, healthier mentality, and sounder status of anthropometric and biochemical variables. Those with higher factor scores for the convenience pattern were found to be younger and having higher socio-economic status, higher subjective levels of health, and lower subjective levels of worry on health. Several physical characteristics significantly improved as the levels of the convenience pattern increased. The alcohol-animal pattern was significantly associated with several socio-demographic characteristics including a low education level, a young age, a small family size, and blue-collar jobs. Public health policy makers can utilize the study findings to select prior target populations with higher needs and to tailor dietary behavioral messages to lower chronic disease risks among Korean middle-aged women.

• Korean Journal of Community Nutrition
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• 제13권3호
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• pp.307-322
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• 2008

This study was carried out to examine dietary habits, food frequency and dietary attitudes by gender and nutrition knowledge level in upper-grade school children. Subjects were 223 boys and 208 girls attending 13 elementary schools (5 th and 6 th graders). A self-administered questionnaire was developed to assess nutrition knowledge, dietary habits, food frequency, and dietary attitudes. Nutrition knowledge score assessed by 19 questions was significantly higher in girls than in boys. There were significant differences between boys and girls in several items in dietary habits such as enough breakfast time, dinner regularity, number of side dishes, eating speed, type of snack after dinner, and degree of saltiness of dishes. Girls consumed staple foods such as rice, noodles or bread more frequently, and consumed less frequently ramyun, fried foods, fast foods, and Chinese foods than boys. In addition, girls had more positive dietary attitudes in trying to reduce fast foods, Chinese foods, ramyun and fried foods. Also children in the high or moderate nutrition knowledge level groups had better dietary habits in frequency of meals, frequency of breakfast, enough breakfast time, dinner regularity, activity during the meal, number of side dishes, eating speed, type of snack after dinner, and better food choices by eating staple foods and vegetable side dishes, meats and beans more frequently, and fried foods, doughnuts/cakes, Chinese foods less frequently, and had better dietary attitudes in breakfast, vegetables and fruit intake than children in the low nutrition knowledge level group. Our results showed that dietary habits, food frequency and dietary attitudes were different by gender and nutrition knowledge level. These results suggest that in developing nutrition education program for elementary school children, the differences between gender and nutrition knowledge level should be considered. Nutrition education in elementary schools may change dietary habits and dietary attitudes through increasing nutrition knowledge.