• Animal Bioscience
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• 제35권12호
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• pp.1948-1956
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• 2022

Objective: This study was conducted to evaluate the effects of selenium (Se) source and level on the physiological response, reproductive performance, serum Se level, and milk composition in gestating sows. Methods: A total of 54 multiparous sows (Yorkshire×Landrace) with average body weight (BW), backfat thickness (BF), and parity were assigned to one of five treatments with 10 or 11 sows per treatment using a 2×2 factorial arrangement with one additional treatment in a completely randomized design. Inorganic or organic Se (IS or OS) sources were added to the diet at 0.30 ppm and 0.50 ppm Se. A non-Se-fortified corn-soybean meal basal diet served as a negative control. Treatments were as follows: i) Control: corn-soybean based diet, ii) IS30: control+inorganic Se 0.30 ppm, iii) IS50: control+inorganic Se 0.50 ppm, iv) OS30: control+ organic Se ppm, and v) OS50: control+organic Se 0.50 ppm. Results: At day 21 of lactation, piglet weight and weight gain in the OS treatments were higher than those in the IS treatments (p<0.05). Meanwhile, adding 0.5 ppm Se also resulted in the same significant differences in piglet BW and weight gain (p<0.05). Colostrum and milk Se concentrations increased (p<0.05) with Se level for both Se sources but were greater when sows were fed organic Se (p<0.05). Except for 24 hours postpartum, the Se concentrations were higher when sows were fed organic Se (p<0.05). Sow serum Se content was greater as Se levels increased from 0.3 ppm to 0.5 ppm at day 110 of gestation, 24 hours postpartum and day 21 of lactation (p<0.05). The pig serum Se concentration increased as the dietary Se level increased (p<0.05) and was higher when the sow dietary Se source was organic (p<0.05). Organic Se 0.5 ppm also had the highest serum Se level at two measured points (p<0.05). Conclusion: Consequently, supplementation with organic Se or 0.5 ppm Se in a gestating diet could improve piglet performance, the Se status of sows and piglets and milk composition, but organic Se at 0.5 ppm is optimal.

• Journal of Animal Science and Technology
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• 제64권3호
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• pp.471-480
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• 2022

This experiment was conducted to determine the maximum dietary energy levels on growth performance and carcass characteristics of White Pekin duck. the Six dietary treatments were formulated based on their apparent metabolizable energy (AME) concentrations from 2,700 to 3,200 kcal/kg with a 100 kcal/kg gap to evaluate the accurate dietary AME requirement to address current knowledge and further issues for fulfilling the genetic potential of meat-type white Pekin ducklings. A total of 432 one-day-old male White Pekin ducklings were randomly allocated into one of six dietary treatments with six replicates (12 birds per pen). The diets were formulated as corn-soybean meal-based diets to meet or exceed the Nutrient Requirement of Poultry specification for meat-type ducks. Growth performance indices (i.e. average daily gain [ADG], average daily feed intake, feed conversion ratio) were measured weekly. Medium body weight (BW) ducklings from each pen were sacrificed to analyze the carcass traits and abdominal fat content on day 21. Obtained data were analyzed to estimate significant effect using the one-way ANOVA of IBM SPSS Statistics (Version, 25). If the p-value of the results were significant, differences in means among treatments were separated by Tukey's post hoc test. Significant differences were then analyzed with a linear and quadratic broken model to estimate the accurate concentration of AME. Ducklings fed higher dietary AME diets increased (p < 0.05) BW, ADG. Ducklings fed higher AME than 2,900 kcal/kg diets increased abdominal fat accumulation and leg meat portion. The estimated requirement by linear plateau method showed from 3,000.00 kcal/kg to 3,173.03 kcal/kg whereas the requirement by quadratic plateau method indicated from 3,100.00 kcal/kg to 3,306.26 kcal/kg. Collectively, estimated dietary requirements exhibit diverse results based on the measured traits and analysis methods. All the estimated requirements in this experiment present higher than previous research, the maximum requirement for the next diet formulation should be selected by the purpose of the diet.

• Journal of Nutrition and Health
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• 제56권4호
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• pp.404-418
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• 2023

본 연구는 국민건강영양조사 자료를 활용하여 한국의 김치 섭취 추세를 분석하고 김치 섭취와 관련 있는 특성을 파악하고자 하였다. 추세 분석에서, 총 81,680 명 (남자 33,988명, 여자 47,692)을 대상으로 연도별 연령표준화 김치, 채소, 과일 평균섭취량을 구하였고, 섭취 추세에 대한 경향성을 확인하였다. 관련 요인 분석에서, 총 22,122명 (남자 15,134명, 여자 6,988명)를 대상으로 김치, 과일, 채소를 기준치 또는 중위수 이상으로 섭취할 오즈비를 특성 변수에 따라 로지스틱 회귀분석을 실시하였다. 본 연구에서 남녀 모두 김치 섭취량이 감소하고 있으며, 관련 요인으로 김치의 주된 섭취 장소인 가정에서의 식사 비율 감소, 서구화된 식습관, 식생활에 영향을 주는 배우자의 유무, 1인 가구 증가에 따른 혼자 식사하는 빈도의 증가를 고려해볼 수 있다. 따라서 이러한 요인을 고려한 식생활 지침 마련이 필요하다.

• 한국가정과교육학회지
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• 제34권4호
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• pp.131-142
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• 2022

본 연구에서는 대학생을 대상으로 쿡방 시청 실태를 조사하고, 쿡방 시청 정도에 따라 '자주 보는 편이다(FW군)', '가끔 보는 편이다(MW군)', '보지 않는다(NW군)' 3군으로 나누어, 분석한 연구 결과는 다음과 같다. 쿡방 시청 빈도는 '주 4일 이상'(p<.001), 쿡방 시청 시간은 '1시간 이상'(p<.01), 그리고 식생활이 '좋아짐'(p<.05)가 FW군에서 유의적으로 높게 나타났다. 쿡방 시청 정도에 따라 혼자 식사하는 빈도(p<.05)와 스스로 요리한다는 빈도(p<.01)가 FW군에서 유의적으로 높게 나타났다. 쿡방 시청 정도에 따른 식습관을 조사한 결과 FW군이 '매끼 김치를 제외한 다른 채소를 먹는다'(p<.01), '매일 과일을 섭취한다'(p<.001), '가공식품을 자주 섭취하지 않는다'(p<.01), '동물성 지방을 자주 섭취하지 않는다'(p<.01), '외식을 자주 하지 않는다' (p<.05), '과음하지 않는다'(p<.05), 그리고 마지막으로 식습관 총점(p<.05)로 유의적으로 높게 나타났다. 위 결과를 정리해보면 FW군이 채소와 과일 섭취는 증가하고, 가공식품, 동물성 지방, 외식, 과음의 섭취가 감소하여 쿡방이 대학생의 식습관에 영향을 미치는 것을 알 수 있었다. 따라서 본 연구 자료는 쿡방 시청 빈도가 높은 대학생들의 식생활 연구와 교육을 위한 기초자료로 활용할 수 있으리라 판단된다.

• 대한영양사협회학술지
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• 제29권3호
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• pp.173-189
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• 2023

This study aimed to determine foodservice and hygiene management statuses at welfare facilities catering to disabled persons by facility type to provide basic data for foodservice management guidelines. An online survey was distributed to workers at 1,984 welfare facilities for disabled persons in Korea, and 531 facilities responded, which represented a response rate of 26.8%. The survey requested general information about the facilities, facility users, meals, hygiene, and management. Statistical analyses were performed, and frequency analysis and the chi-square test were used to investigate responses by facility type. The survey results revealed that daycare centers were most common and accounted for 27.4% of responses. Residential facilities for the severely disabled and sheltered workshops accounted for 16.9% and 16.4%, respectively, and residential facilities by disability type accounted for 13.0%. The presence of dietitians at welfare facilities varied by facility type. Welfare centers for the disabled (94.7%) had the highest percentage of dietitians, followed by residential facilities for the severely disabled (87.8%). On the other hand, sheltered workshops and daycare centers for disabled persons had the lowest percentages of dietitians (10.3% and 4.1%, respectively). This study highlights the variations that exist in foodservice management across different welfare facilities for disabled persons and emphasizes the challenges faced by those responsible for managing foodservices and maintaining hygiene, particularly in large facilities with no dietitians. Therefore, we recommend tailored meal management guidelines be developed for each type of welfare facility for disabled persons.

• Animal Bioscience
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• 제36권4호
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• pp.642-653
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• 2023

Objective: This study was conducted to evaluate effects of β-glucan with vitamin E supplementation on the growth performance, blood profiles, immune response, fecal microbiota, fecal score, and nutrient digestibility in weaning pigs. Methods: A total of 200 weaning pigs with an average body weight (BW) of 7.64±0.741 kg were allotted to five treatment groups and were divided based on sex and initial BW in four replicates with ten pigs per pen in a randomized complete block design. The experimental diets included a corn-soybean meal-based basal diet with or without 0.1% or 0.2% β-glucan and 0.02% vitamin E. The pigs were fed the diets for 6 weeks. A total of 15 barrows were used to evaluate the nutrient digestibility by the total collection method. The BW and feed intake were measured at the end of each phase. Blood samples were collected at the end of each phase, and fecal samples were collected at the end of the experiment. Results: The addition of β-glucan with vitamin E to weaning pig feed increased BW, average daily gain, and average daily feed intake. A significant decrease in yeast and mold and Proteobacteria and a tendency for Lactobacillus to increase compared to the control was shown when 0.1% β-glucan and 0.02% vitamin E were added. The fecal score in weaning pigs was lower in the treatments supplemented with 0.1% or 0.2% β-glucan and 0.02% vitamin E compared to the control. In addition, vitamin E was better supplied to weaning pigs by increasing the concentration of α-tocopherol in the blood of weaning pigs when 0.02% vitamin E was supplemented. However, there was no significant difference in either the immune response or nutrient digestibility. Conclusion: Inclusion of 0.1% β-Glucan with 0.02% vitamin E in a weaning pig's diet were beneficial to the growth performance of weaning pigs by improving intestinal microbiota and reducing the incidence of diarrhea.

• Animal Bioscience
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• 제36권6호
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• pp.929-942
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• 2023

Objective: This study was conducted to evaluate the effects of β-glucan with vitamin E supplementation on the growth performance, blood profiles, immune response, pork quality, pork flavor, and economic benefit in growing and finishing pigs. Methods: A total of 140 growing pigs ([Yorkshire×Landrace]×Duroc) were assigned to five treatments considering sex and initial body weight (BW) in 4 replications with 7 pigs per pen in a randomized complete block design. The experimental diets included a corn-soybean meal-based basal diet with or without 0.05% or 0.1% β-glucan and 0.02% vitamin E. The pigs were fed the diets for 12 weeks (phase I, 0 to 3; phase II, 3 to 6; phase III, 6 to 9; phase IV, 9 to 12). The BW and feed intake were measured at the end of each phase. Blood samples were collected at the end of each phase. Four pigs from each treatment were selected and slaughtered for meat quality. Economic benefit was calculated considering the total feed intake and feed price. Pork flavor was analyzed through inosine monophosphate analysis. Results: The average daily gain and feed efficiency were improved compared to the control when β-glucan or vitamin E was added. Supplementing 0.05% β-glucan significantly increased the lymphocyte concentration compared to the addition of 0.1% β-glucan and the content of vitamin E in the blood increased when 0.02% vitamin E was added. The treatment with 0.1% β-glucan and 0.02% vitamin E showed the most economic effect because it had the shortest days to market weight and the lowest total feed cost. The addition of β-glucan or vitamin E had a positive role in improving the flavor of pork when considering that the content of inosine monophosphate was increased. However, carcass traits and meat quality were not affected by β-glucan or vitamin E. Conclusion: The addition of 0.1% β-glucan with 0.02% vitamin E in growing and finishing pig diets showed great growth performance and economic effects by supplying vitamin E efficiently and by improving the health condition of pigs due to β-glucan.

• 융합정보논문지
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• 제12권2호
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• pp.116-126
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• 2022

그동안 상표정보 활용과 관련한 여러 연구가 진행되었고 상표정보가 비즈니스 트렌드를 볼 수 있는 좋은 데이터임을 증명하였다. 본 연구는 상표정보를 활용하여 코로나-19 전후의 트렌드 변화를 분석하고자 한다. 상표정보로 상품류, 유사군 코드, 지정상품정보를 활용하여 코로나-19 전후의 변화를 비교하고 통계적으로 유의미한 차이가 있는지 확인하였다. 활용한 상표정보 중에 코로나-19 전후로 지정상품명을 활용한 트렌드의 변화가 유의미한 차이를 나타냈다. 결과의 검증을 위해 코로나-19 전후의 지정상품명에 사용된 키워드의 변화를 구글 트렌드의 키워드의 검색 노출빈도와 비교하였다. 지정상품명칭에서 추출된 상위 8개 키워드 중 '온라인, 항균, 방역, 밀키트, 가상'의 구글 트렌드 검색 노출 빈도는 증가추세이고, '마스크, 비말' 은 증가추세는 아니지만, 코로나-19시점에 급격히 증가하였으며 코로나-19 이후에도 이전에 비해 높은 수준을 나타냈다. '무인' 의 노출 빈도는 코로나-19 전후로 큰 차이는 없지만 꾸준히 높은 수준을 유지하여 코로나 이전부터 관련 비즈니스가 활발하였으며, 대중의 관심이 높은 키워드로 해석할 수있다. 본 연구는 세가지 상표정보를 활용하여 비즈니스 트렌드에 활용 가능성이 있는 정보를 구체적으로 확인하였다 점에서 학문적 성과가 있다.

• 한국식생활문화학회지
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• 제25권1호
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• pp.17-24
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• 2010

The purpose of this study was to investigate nutritional knowledge, practice of eating behavior guidelines, and problematic dietary habits in working high school students in comparison with non-working high school students. A survey questionnaire was formulated to obtain information on demographic variables, body size, part-time jobs, nutritional knowledge, practice of eating behavior guidelines, and dietary habits. The developed questionnaire was given out to 515 students attending a vocational high school in Yongin, Gyeonggi-Do. Those who had been working 5 hours or more per day for at least a month at the time of survey administration were defined as working students for this study. Proportions of working students were similar between male and female students (i.e. 49.5% for male, 50.5% for female). No significant difference was found in scores of nutritional knowledge between working ($8.43{\pm}2.29$) and non-working students ($8.60{\pm}2.19$). However, some dietary habits were found to be dependent on working status. While approximately 43% of non-working students reported skipping a meal, about 57% of working students did so (p<0.01). The proportion of students with any drinking experience was significantly higher among working students (92%) compared to non-working students (80%) (p<0.001). Working students were found to drink alcoholic beverages more often than non-working students (p<0.001). The mean score of practice of eating behavior guidelines was lower in working students than non-working students. The magnitude of this difference was modest ($51.33{\pm}0.63$ in working students, $53.40{\pm}0.51$ in non-working students), but reached statistical significance (p<0.01). Based on the findings from this study, it is suggested that specific behavior-oriented messages to improve certain problematic dietary habits need to be directed toward working high school students.

• 한국식생활문화학회지
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• 제25권4호
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• pp.389-399
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• 2010

This study was conducted in order to investigate and compare anthropometric measurements, bone density, nutrient intake, blood composition and food habits between non-smoking, non-alcohol drinking and smoking, alcohol drinking male university students in Seoul, South Korea. The data for food habits and health-related behaviors were obtained by selfadministered questionnaires. The BQIs of the subjects were measured by Quantitative Ultrasound (QUS). The subjects were divided into two groups: NSND (non-smoking and non-alcohol drinking, n=62) group and General (smoking and alcohol drinking, n=160) group. The results were analyzed using the SPSS program and were as follows: The average heights, weights, and BMIs of the two groups were 173.3 cm, 66.5 kg and 22.1 and 173.4 cm, 68.7 kg and 22.9, respectively. There were no differences between the groups regarding height, weight or BMI. SBP and DBP, however, were significantly higher in the general group than in the NSND group (p<0.01). The BQIs, Z-scores and T-scores of the two groups were 99.83, -0.23, and -0.31 and 98.24, -0.27 and -0.39, respectively, producing no significant differences between the two groups. The percentages for normal bone status, osteopenia and osteoporosis were 83.88%, 16.12% and 0.0% and 74.37%, 25.62% and 0.01%, respectively. Mean intakes of animal protein (p<0.05), animal fat (p<0.05), fiber (p<0.05), animal Ca(p<0.05), animal Fe (p<0.001), Zn(p<0.05), vitamin B1 (p<0.05) and niacin (p<0.05) were significantly different between the two groups, and mean serum levels of SGOT (p<0.01), SGPT (p<0.001), ${\gamma}$-GTP (p<0.001), triglycerides (p<0.01), total cholesterol (p<0.05) and hematocrit (p<0.05) were also significantly different between the two groups. Overall, there were no differences in meal regularity, frequency of snacking, reasons for overeating, exercise and defecation between the groups. However, favorite foods (p<0.05) and night-time meals (p<0.05) were significantly different. In conclusion, the health status of the NSND group was superior compared to the general group. Thus, students who smoke and alcohol drink should receive a practical and systematically-organized education regarding the increased health benefits of quitting smoking and alcohol drinking.