• Fisheries and Aquatic Sciences
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• v.10 no.1
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• pp.30-36
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• 2007

We present age and growth data for Ilisha elongata, based on 363 specimens caught in 1999 and 2000 around Jeju Island and the southwest coast of Korea. Scale and ring radii of each ring group showed a direct one-to-one relationship, with ring radius increasing as scale radius increased. The relationship between fork length and scale radius was FL=39.553SR+60.935 for females, FL=39.474SR+54.026 for males, and FL=39.608SR+57.547 for both sexes. Monthly changes in the marginal index indicated that a new ring appears once each year (in July). Maximum age, mean age and mean fork length of fish were 10 years, 5.0 years, and 349mm, respectively. Von Bertalanffy's growth equations were $FL_t=495.4{\times}[1-\exp(-0.2586(t+0.6487))]$ for fork length (mm) and $W_t=1,112.5{\times}[1-\exp(-0.2586(t+0.6487))]^{2.874}$ for body weight (g) for both sexes. Monthly changes in the gonadosomatic index (GSI) indicated that the spawning period was in June and July, which corresponded closely with ring formation time. Differences in monthly GSI changes in 1999 and 2000 may be related to water temperature variation. Fecundity ranged from 5,664 to 176,290 eggs per individual (n=43, fork length 264-470mm). The relationship between fecundity(F) and fork length was $F=7.7{\times}10^{-7}{\times}FL^{4.9269}$.

• Preventive Nutrition and Food Science
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• v.8 no.4
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• pp.412-418
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• 2003

To evaluate the school lunch program served by elementary schools in Muan, Korea, we examined children's preference for the dishes offered on the menus. School lunch program menus showing the food composition of 400 meals (100 meals in each season) were collected. The serving frequency of each dish on the menus was counted. Eighty-seven representative dishes were selected based on the serving frequency and preference for each dish was determined by a survey of 414 elementary school students who were served by the school lunch program. We also analyzed the nutrient contents of each representative dish. Among the prepared foods, children indicated the highest preference for desserts. Steamed rice was served more frequently as a main course than one dish meals, although children preferred one dish meals to steamed rice. Among side dishes, those that were deep-fried were the most preferred. Children indicated high preference for fruits, milk, and eggs, and low preference for fish and clams, vegetables, and beans. The serving frequency with which main courses, soups, and side dishes were served showed no correlation with children's preference for each. Preference for dishes correlated positively with nutrient contents of calories and lipids, but negatively with nutrient contents of fiber, calcium and vitamin A. According to these results we can suggest that dietitian should consider children's preference into greater consideration to increase menu acceptability and thereby reduce waste. Children need to be educated about the roles and contents of nutrients in food and the fact that preference for foods affects nutrient intake.

• Asian Oncology Nursing
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• v.10 no.2
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• pp.210-217
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• 2010

Purpose: This survey was aimed to examine the current dietary restrictions practices for neutropenic patients among hospitals with 500 and more beds. Methods: Self-administered questionnaires were sent to 100 head or charge nurses of oncology or hemato-oncology wards by mail during October 2009, and 51 questionnaires were returned. The data were analyzed with descriptive statistics using SPSS (WIN version 12.0). Results: Of the hospitals surveyed, 47.1% (n=24) had guidelines on the dietary restrictions, and 80.4% (n=41) placed patients with neutropenia on restricted diets. The major decisional criteria of the dietary restriction was absolute neutrophil count (30.5%) and cooking status (29.2%). The most commonly restricted foods were raw fish or fresh meat (98.0%), uncooked intestine (98.0%), raw eggs (98.0%), draught beer (96.1%), and fresh fruits or vegetables (86.3%). Conclusion: The results showed variation in pattern of dietary restrictions and lower rate of guideline among hospitals, so that the need for the standard dietary restriction guideline is high. However, the role of diet in the development of infection in neutropenic patients is still unclear, which makes it difficult to establish dietary restriction guideline. Therefore, additional research are required to identify the relationship between dietary factors and infections.

• Journal of the East Asian Society of Dietary Life
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• v.22 no.6
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• pp.711-719
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• 2012

The purpose of this study was 1) to investigate the food intake, dietary habits and life behavioral characteristics, and 2) to examine the relationship among these factors in a sample of adult Korean women. In October 2010, self-reported questionnaire survey was distributed to 200 women aged 30 to 65 in Gyunggi Province. Overall, 177 women participated and completed the survey. Most participants were married (97.2%) and housewives (83.6%). About 85% of respondents lived with their children. For comprehensive analysis, all respondents were divided into three age groups; 30~39, 40~49, and 50~65. The percent of intake of high protein foods such as meat and fish, eggs, and milk products was higher younger age groups (p<0.05). Moreover, age 30~39 group were more likely to eat potatoes (p<0.05) than age 50~65 group. However, age 50~65 women more frequently consumed seaweed than other age groups (p<0.01). Women who ate breakfast or dinner consumed a significantly higher frequency of vegetables, seaweed, potatoes, and kimchi (p<0.01). Additionally, women who ate breakfast with family more frequently consumed vegetables, fruit and kimchi. Furthermore, older women were likely to have less sleeping time than other groups. In conclusion, there were western dietary patterns among adult women and these dietary patterns were partly related to different life behavior and dietary habits. Considering that negative dietary habits of adult women can influence their family and health for the rest of their life, nutritional education programs based on changes in lifestyle should be developed.

• Korean Journal of Community Nutrition
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• v.7 no.2
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• pp.156-166
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• 2002

The object of this study was done to assert the dietary habits, food intake, and dietary attitudes of 332 middle school students in a small city. The subject were divided into doe groups based on weight length index (WLI). Anthropometric data showed that the mean height and weight were 169.5 $\pm 8.2 cm and 55.1 $\pm 11.5 kg in the male students and 158.9 $\pm 5.9 cm and 48.1 $\pm 7.6 kg in the female students. The mean WLIs for male and female students were 103.0 $\pm 19.7 and 96.3 $\pm 12.8, respectively. Of the male students 27.9% and of the female students 32.1% were underweight, and of the male students 28.9% and of the female students 13.0% were overweight based on WLI index. Lack of good dietary habits in the overweight group tended to be the highest, the normal group was the second highest, and the underweight group was the lowest. The regularity of eating breakfast and flood prejudice scores in the overweight group were significantly higher than those in the normal and underweight group. With respect to flood intake, the normal group tended to consume grains, yellow or green vegetables, vegetables with light color, fruits, milk, yogurt, cheese, seaweeds, fat-floods, instant floods, sweet floods, carbonated drinks, and spicy and salty floods more frequently. The underweight group tended to consume meat-ham, eggs, fish and fried, stir-fried flood more frequently In dietary attitudes, the overweight group tended to have more favorable dietary attitudes, and the normal group tended to have negative dietary attitudes. The underweight group showed more negative responses to trying to eat/drink milk, yogurt, or cheese everyday than the overweight groups. It might be suggested that more effective nutritional programs should be developed and implemented to ensure good dietary habits in middle school students, including the overweight, as well as the underweight group. Further research on the comparison of dietary characteristics is needed, with consideration of the subjects WLI.

• Korean Journal of Community Nutrition
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• v.8 no.6
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• pp.803-813
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• 2003

Literature suggests that iron deficiency anemia is prevalent among pregnant women all over the world. This study was designed to evaluate the iron status of pregnant women during the fist five months, with the intention of determining ways to reduce the prevalence of iron deficiency anemia among pregnant women in Korea. We collected dietary information and measured the biochemical status of iron in 171 pregnant women over 16 weeks of gestation (=16.7$\pm$2.34 week). Dietary intakes for 3 days were collected using the 24 hour recall and food record methods. The daily Fe intake was measured using the food frequency method. The Body Mass Index (BMI), calculated by using the pre-pregnancy weight and height, indicated that 31.3% of subjects were under-weight. We divided the subjects into normal and anemic group by using the serum ferritin levels. It appeared that the mean dietary intake of iron was 52.3% of the recommended level for pregnant women. The dietary quality evaluation showed that pregnant women ate only 58% of the recommended amount in the food groups of meat, fish, eggs, beans and milk and dairy products. The hematological indices showed that the mean Hemoglobin (Hb) was 11.9 g/dl, Hematocrit (Hct) was 35.1%, ferritin was 23.9 $ng/ml$, and transferrin was 297.3 ${\mu}g/dl$. The dietary intake of iron was significantly lower and the vitamin C intake was significantly higher in the anemic group. The pre-pregnancy BMI was significantly lower in the anemic group. Variables affecting iron intake were the Fe intake frequency index and the food group score. The Fe index showed significantly positive correlation with the pre-pregnancy food intake and the food group score. Hb showed a significantly positive correlation with the pre-pregnancy food intake. We concluded that strategies to improve iron status be implemented in the pre-pregnant stage so as to reduce the prevalence of iron deficiency and that we should stress on the importance of an adequate diet as well as the maintenance of a heathy weight.

• Journal of the East Asian Society of Dietary Life
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• v.26 no.1
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• pp.1-10
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• 2016

The purpose of this study was to investigate the need to develop foods for the elderly based on their food preferences. A one-to-one survey method was used for data collection, and the survey was conducted on 165 elderly people (male: 47, female: 118) attending senior welfare centers in Seoul. The results of this study show that the preferred cooking method was steaming rather than stir-frying. Vegetables (4.24), fruits (4.22), Kimchi (3.87), fish (3.83), tofu (3.81), rice-cakes (3.65), dairy products/eggs (3.47), meat (3.45), noodles (3.44), seafood (3.44), poultry (3.23), bread/cookies (3.10) showed high preferences in order (p<0.05). The respondent's chewing & swallowing degree were "Not uncomfortable chew" 31.5%, "Hard food, and a big food is a little difficult to intake". 37%, "Hard food, and a big food is difficult to intake" 11.5%, "Small food, and soft foods can intake" 11.5%, and "It is difficult to intake solid food" 1.2%. Foods that were difficult to chew were meat 28.3%, seafood 15.2%, vegetables 15.2%, nuts 14.1%, fruits 12.0%, Kimchi 8.7%, and other 6.5%. For respondents, the most important factors affecting choice of elderly foods were flavor (48.5%), hygiene (43.0%), and nutrition (36.4%). The elderly wanted "Ready to eat (RTE)" 53.9%, "Ready to heat (RTH)" 15.8%, "Ready to cook (RTC)" 21.2%, and 'Fresh cut product" 9.1%.

• Development and Reproduction
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• v.21 no.4
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• pp.457-466
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• 2017

Survival of embryos largely depends on yolk processing during early development. Proteolytic enzymes, cathepsin B & D (ctsb & ctsd) are known to have some important roles in yolk processing of various fish species. Mature female red spotted groupers were injected with human chorionic gonadotropin (HCG) to induce ovulation. The fertilized eggs and embryos were sampled at 0, 4 and 24 HPF (hours post fertilization). Survivals of each groups of embryos were checked at 24 and 48 HPH (hours post hatching). Transcripts of ctsb & ctsd showed the highest level at 0 HPF and relatively high at 4 HPF, but greatly decreased at 24 HPF. In bad egg quality group (BE, embryos survived until 24 HPH), transcript level of ctsb at 4 HPF were significantly lower than the transcript level at the same stage in good egg quality group (GE, embryos survived until 48 HPH) while no significant change of ctsb transcript level was observed at 0 or 24 HPF between BE and GE. Transcript level of ctsd was decreased at 24 HPF, but the difference was not as strong as the case of ctsb transcript. These results suggest that maternal ctsb transcript rather than ctsd transcript is likely to be involved in egg quality resulting in the difference of survival rate of embryos at early developmental period in this species.

• Parasites, Hosts and Diseases
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• v.32 no.3
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• pp.157-162
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• 1994

A highly endemic focus of human infection with Heterophves nocens (Heterophyidae) was discovered from a small coastal village of Shinan-gun, Chollanam-do, for the first time in Korea. Fecal examinations by cellophane thick smear and formalin- ether sedimentation techniques revealed 42.9% heterophyid egg Positive rate out of 98 inhabitants examined. It was difficult to confirm the species of heterophylds only by eggs. In order to collect the adult flukes, the egg Positive cases were treated with 10 mg/kg single dose of praziquantel and purged with magnesium sulfate, and the adult worms were collected from the diarrheic stools. From each of 18 cooperative patients 1 to 1,124 (total 4,730) H. nocens worms were recovered, together with a few to large numbers of heterophyids (Pvginiopsis summa, Stictonora juscatunl and for gymnophallids (Gvmopholloides stool) . It is speculated that H. nocen might be widely distributed along the southwestern coastal areas where the brackish water fish such as the mullets or gobies are popularly eaten raw.

• Nutrition Research and Practice
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• v.7 no.4
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• pp.330-335
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• 2013

Data are limited on the association between dietary patterns and screen time among Korean adolescents. The present study identified dietary patterns of 691 adolescents, aged 13-18 years, who had participated in the Third Korean National Health and Nutrition Examination Survey (KNHANES III) and analyzed their associations with screen time. Screen time was defined as the time spent watching TV, using a computer, or playing video games was calculated as a sum of all these times. Dietary patterns and their factor scores were derived from a food frequency questionnaire using the factor analysis method. To analyze the association between dietary patterns and screen time, we conducted multiple linear regression analysis. We also performed multiple logistic regression analysis to estimate odds ratios (OR) of excessive screen time (2 hours or longer per day) and 95% confidence intervals (CI). We identified 2 dietary patterns labeled "the Korean healthy dietary pattern" and "the Western diet and fast foods pattern". The former included mixed grains, legumes, potatoes, red meat, eggs, fish, dairy products, fruits, vegetables, seaweeds, and mushrooms, whereas the latter included noodles, bread, red meat, poultry, fast foods, snack, and soft drinks. After controlling for potential confounding factors, factor scores for the Korean healthy dietary pattern were inversely associated (P-value for trend < 0.01) and those for the Western diet and fast foods pattern were positively associated with the screen time (P-value for trend < 0.01). Adolescents in the top tertile of the scores for the Korean healthy dietary pattern had a multivariable-adjusted OR [95% CI] of 0.44 (0.25-0.75) for excessive screen time compared with those in the lowest tertile. On the basis of these findings, adolescents who have excessive screen time may need to be encouraged to consume a more healthy diet.