• 한국수정란이식학회지
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• 제28권4호
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• pp.325-335
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• 2013

The study was set for one year to measure the effects of concentrate supplementation on reproductive performances and semen quality in indigenous rams. The study was conducted at the Department of Surgery and Obstetrics, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh during the period from May 2011 to April 2012. Forteen ram lambs (4~5 months) were randomly divided into two equal groups (n=7); supplemented vs control. The animals of control group were maintained on natural grazing. Along with natural grazing the supplemented group was on supplemented feeding. The concentrate supplementation (Wheat bran, Crushed maize, Soy bean meal, Fish meal, DCP powder, Vitamin mineral premix, Salt) was provided @ 300 g/head /day to the supplemented group. Body weight, scrotal circumference, BCS and libido index were measured weekly. Age, body weight and scrotal circumference at puberty were recorded. Semen was collected once in a weak using artificial vagina and chilled at $5^{\circ}C$ for 48h for evaluation. Concentrate supplementation did not influence (p>0.05) body condition score, age, weight, scrotal circumference at puberty and libido index. Final body weight (kg), growth rate (g/d), scrotal circumference (cm) and scrotal growth rate (mm/15d) were significantly (p<0.05) higher in supplemented group of rams compared to control. Volume, concentration, motility and membrane potentiality of spermatozoa were varied significantly (p<0.05) in supplemented and control groups. However, density, mass motility, viability and sperm with normal acrosome, midpiece and tail were not differed insignificantly (p>0.05) in different observation times. It was concluded that concentrate supplementation with free grazing improved weight and scrotal circumference gain and semen production with increased quality in indigenous ram.

• 대한영양사협회학술지
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• 제27권3호
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• pp.162-178
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• 2021

The study examined the perceived health status, dietary habits, and health-related lifestyle habits of middle-aged men and women in Seoul and Gyeonggi-do areas. The survey was conducted on 670 individuals (320 men and, 350 women), aged 40~64 years, in Seoul and Gyeonggi-do areas. The online and written data were analyzed using the SPSS WIN 25.0 program. Although there was a significant difference in the perceived health status (P < 0.01), there were no significant differences in the subjective stress and the current disease status according to sex. For dietary habits, the scores for fruit intake (P < 0.05), meat and fish intake (P < 0.05), milk and dairy products intake (P < 0.01), and seaweed intake (P < 0.05) were higher in women than men. The scores for three-meal eating (P < 0.05) and water intake (P < 0.01) were higher in men than women. For the health-related habits, alcohol-drinking frequency, daily alcohol consumption, smoking experience, and daily smoking were higher in men than women (P < 0.001). In contrast, caffeinated beverage intake, exercise frequency, and daily smart-phone, computer, and TV using time were similar in both sexes. The meal-eating time was faster in men than women (P < 0.01). For dietary behavior changes, only appetite showed a significant gender difference (P < 0.05). This study provides essential information on the perceived health status, dietary habits, and health-related lifestyle habits in middle-aged men and women. Nevertheless, further research and a practical nutrition program will be needed to solve undesirable dietary habits and improve the health and lifestyle of middle-aged adults according to sex.

• Nutrition Research and Practice
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• 제12권6호
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• pp.512-520
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• 2018

BACKGROUND/OBJECTIVES: The 6-23 months for infants is the longest period in the "first 1,000 days" of life. This period is very important for child development, so complementary feeding (CF) practices should be optimized to maximize children's potential for growth and development. The aim of this study was to analyze the CF practices and nutritional status of children aged 6-23 months. SUBJECTS/METHODS: For this cross-sectional study, 392 children aged 6-23 months were selected using stratified random sampling. Socio-demographic data were collected through interviews. CF practices, collected by interviews and repeated 24-hour food recall method, were the timely introduction of CF, minimum meal frequency, dietary diversity and minimum acceptable diet, consumption food rich in proteins and vitamin A. Nutritional status was assessed using the indicators of underweight, wasting and stunting. To analyze the association between socio-demographic indicators and CF with nutritional status, the chi-square test with a confidence interval of 95% was used. RESULTS: Results showed that 39% were exclusively breastfed, only 61% received prolonged breastfeeding and 50% received timely introduction of CF. Minimum meal frequency was met by 74% of subjects, but dietary diversity and minimum acceptable diet were only realized in 50% and 40% of the children, respectively. The prevalence of underweight, wasting, and stunting were 26%, 23%, and 28%, respectively. Age of the child, birth order, birth weight, parents' education level, family size and incidence of fever and diarrhea during the previous two weeks were associated with underweight, while child's birth order, fathers' education level, mother's age, family size, completion of the age-appropriate vaccination and fish consumption frequency were associated with wasting. Age of the child, incidence of fever and acute respiratory infection, and fortified food consumption were associated with stunting. CONCLUSIONS: Suboptimal CF practices and high prevalence of underweight, wasting and stunting were found among children aged 6-23 months old in Aceh. These results highlight the need to improve CF and nutritional status.

• 한국식생활문화학회지
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• 제22권4호
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• pp.511-519
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• 2007

The purpose of this study was to evaluate satisfaction degree on menu served and identify food preference of the meal served to 271 business and industry foodservice workers from 4 institutions by gender difference. The demographics indicated that male(54.6%) and female(45.4%) were about an half each, mean age was ranged from 20 to 39 years old. The workers were not contented with most of menu quality attributes served from past foodservice operation. Primary complaint was improper temperature of the meal. Most workers liked meat and fish(52.1%) the most. Sensory quality evaluation from all workers was 3.37 points out of 5 points. However, female workers rated higher on the most of menu(3.72 points) compared with that of male workers(3.35 points), indicating that satisfaction was higher in the female workers(p<0.05). Mean preference of all the menu according to food type also have shown higher in female(3.52 point) than in male(3.45 point). Best food preference according to food type considering cooking method of male was given to barley rice, boiled rice with assorted mixtures, marine product stew, and Kimchi stew. On the other hand, females cared for curried rice, hash rice, and spaghetti but males have shown low preferences to those foods females liked. Also, females liked more of fried, grilled and broiled food. However, both males and females showed indifferent taste about the food cooked with steamed and stewed. From the findings, the business and industry foodservice workers were not well satisfied with menu quality considerably and differed in food preferences by gender clearly. Therefore, the manager of foodservice institution require to consider composition of gender ratio in menu preparation along with sensory quality evaluation to lead the successful foodservice management.

• 한국가금학회지
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• 제37권1호
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• pp.69-80
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• 2010

대두단백질(ISP)이 혈액 콜레스테롤 농도에 미치는 영향을 확인하기 위하여, 카제인, 어분, 쌀단백질, 옥수수 단백질(글루텐 밀) 등과 함께 이들을 각각 함유한 반정제(semi-purified) 사료를 2주간 병아리에게 급여하였다. 병아리는 쥐에 비해 혈액 콜레스테롤에 예민하게 반응하며, 인체의 지질 실험 모델로 더 적합한 동물이다. 각 단백질 사료 마다 NRC 요구량을 기준하여 부족한 필수아미노산(lysine, arginine 등)을 첨가하였다. 모든 실험 사료는 강제 급이 방식으로 1일 3회 급여하여 아미노산을 제외한 모든 영양소의 섭취량을 동일하게 하였다. 실험 2에서는 모든 사료에 콜레스테롤을 0.3% 수준으로 첨가하여 급여하였다. 카제인군의 병아리 증체량이 두 실험 모두 가장 저조하였고(P<0.05), 대두단백질과 어분군의 성장률이 가장 좋았다. 카제인군은 실험 1, 2에서 혈액 총콜레스테롤, non-HDL 콜레스테롤, TG 함량이 유의하게 가장 높았고, 대두단백질 군은 다른 단백질군(쌀 옥수수단백질, 어분)과 대체로 비슷한 수준을 보였다. 어분군은 실험 2에서 혈액 콜레스테롤이 대두 쌀 옥수수단백질군 보다 유의하게 더 높았다. 카제인군은 간 중량이 두 실험 모두 가장 무거웠고 간의 콜레스테롤 및 총지질 함량 도 가장 많았다. 반면에 어분군은 콜레스테롤 함량을 제외하고 대두 쌀 옥수수단백질 군과 같은 수준을 보였다. 카제인군에서 나타난 고콜레스테롤혈증(hypercholesterolemia)은 전형적인 Lys- Arg 길항 작용에 의한 결과이며, 카제인을 섭취한 대부분의 동물에서 나타나는 현상이다. 반면에 대두단백질과 쌀단백질, 옥수수단백질 및 어분군의 혈중 콜레스테롤 함량이 비슷하게 나타나는 것은 사료 Lys/Arg 비율이 카제인 만큼 심하게 높지 않기 때문이라고 생각된다. 결론적으로 대두단백질군의 저콜레스테롤 혈증(hypocholesterolemia)은 카제인에 비교할 때만 나타나는 상대적인 현상으로, 대두단백질 자체가 혈중 콜레스테롤을 저하시킬 수 있는 독자적인 기능을 갖고 있지 않다고 판단된다.

• 한국지역사회생활과학회지
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• 제25권4호
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• pp.581-600
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• 2014

This study examines the relationship between food purchase accessibility for 86 homemakers and that for 42 grocery stores. The Study area included Bibong-myeon and Maesong-myeon, Hwaseong-si, Gyeonggi-do, to represent a rural area. The analysis classified three regions (residence, outside of residence, and other areas) and seven types of grocery stores (LDS, CS, NCS, CC, NCC, TM, and other). The expansion of the area range increased the availability of food items and the accessibility of large-scale grocery stores as well as those for food procurement. The respondents had difficulty preparing family meals and buying food items because of a lack of food item variety and the small scale of grocery stores. In particular, fresh meat, fruits, and fish were difficult to purchase, causing some nutritional imbalance. These results suggest a need to develop meal composition samples and programs that can actively encourage the intake of meat and fish products with a diet based in self-produced vegetables for better dietary behaviors.

• Fisheries and Aquatic Sciences
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• 제17권2호
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• pp.229-247
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• 2014

Seven feeding trials were conducted to determine the effects of feeding rate and frequency in the Korean rockfish Sebastes schlegeli at seven different water temperatures. Two feeding-rate experiments for 5-g Korean rockfish at $17^{\circ}C$ and $20^{\circ}C$; three feeding rate experiments for 16-g Korean rockfish at $16^{\circ}C$ and $24^{\circ}C$; and finally, two feeding frequency experiments for 93- and 100-g at $15^{\circ}C$ and $20^{\circ}C$ were conducted. Twenty fish averaging $5.5{\pm}0.2$ g ($mean{\pm}SD$) were randomly distributed into 18 indoor tanks containing 40-L seawater from a semi-recirculation system. Fish were fed a commercial diet for 4 weeks at water temperatures of $17^{\circ}C$ and $20^{\circ}C$. Two feeding trials were conducted to determine the optimum feeding frequency in growing Korean rockfish reared at temperatures of $15^{\circ}C$ and $19^{\circ}C$. Broken line regression analysis of weight gain (WG) indicated that the optimum feeding rates of 5-g growing Korean rockfish were 4.48% (BW/day; BW, body weight) at $17^{\circ}C$ and 4.83% (BW/day) at $20^{\circ}C$. Broken line regression analysis of WG showed optimum feeding rates of 16-g juvenile Korean rockfish of 3.41% (BW/day) at $16^{\circ}C$, 3.75% (BW/day) at $20^{\circ}C$, and 3.34% (BW/day) at $24^{\circ}C$. The biological performance, results, along with morphological indices and serological characteristics, suggest that a feeding frequency of 1 meal/day was optimal to improve WG in growing Korean rockfish grown from 93 to 133 g at a water temperature of $15^{\circ}C$, and 100 to 132 g at $19^{\circ}C$.

• Fisheries and Aquatic Sciences
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• 제23권8호
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• pp.22.1-22.8
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• 2020

Background: High demand and low supply of fishmeal due to overexploitation of fisheries resources have resulted in a dramatic increase in the price of this ingredient. Olive flounder (Paralichthys olivaceus) commercial feed contains approximately 60% fishmeal and limited success has been achieved in identifying sustainable alternative protein sources for this species. Methods: An on-farm feeding trial was conducted to compare a basal diet containing 65% as the control (CONT) with two experimental diets replacing 10% of fishmeal by animal protein (AP₁₀) or 20% of fishmeal by animal and plant protein (APP₂₀). Sub-adult olive flounder averaging 327 ± 9.3 g (mean±SD) were fed one of the three diets in triplicate groups for 16 weeks. Results: Weight gain, specific growth rate, feed efficiency, protein efficiency ratio, and survival were not significantly different among fish fed all the experimental diets (P > 0.05). Also, non-specific immune responses (superoxide dismutase and lysozyme activity), serum biochemical parameters, and intestinal villi length were not significantly different among fish fed all the experimental diets (P > 0.05). Conclusions: Therefore, based on growth performance, non-specific immune responses, serum biochemical parameters, and intestinal histology, dietary animal and plant protein mixtures could replace up to 20% of fishmeal in the diet of sub-adult olive flounder.

• 한국축산시설환경학회지
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• 제17권1호
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• pp.33-38
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• 2011

크릴새우의 고액분리효율을 규명하기 위하여 크릴새우를 해빙시킨 다음 고액분리기만 사용하였을 경우, 솔 (Brush) 분쇄기 또는 날 분쇄기로 크릴새우를 분쇄한 후 고액분리기를 사용하여 효율을 측정하였을 경우로 나누어 수행하였다. 고액분리기만으로 분리한 경우와 솔분쇄기와 날분쇄기로 분쇄한 후 고액 분리기를 적용한 결과 3차 시험에서 분리효율은 각각 46.2%, 60.2%, 60.4%를 나타내었다. 고액분리기만을 사용하였을 경우보다 날 분쇄기와의 조합에서 분리효율의 증가는 2차 시험에서 10.1%, 3차 시험에서 14.2%로 각각 나타났고, 처리용량은 4.2kg/min으로 되었다. 고액분리 전에 날분쇄기로 분쇄한 후 고액분리기로 분리하는 것이 이상적이라 판단된다.

• 한국식품조리과학회지
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• 제6권1호
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• pp.41-51
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• 1990

A special form of questionaire was prepared and distributed to 502 housewives in seoul from Feb. 8th to 22nd in 1989. The results were as follows: In Cooking methods, they tended to follow in the steps of their mother, and it took about half an hour or an hour to prepare a meal. They cooked fried foods once or twice a month. Whenever they fried foods they need new oil. Followings were details of cooking method mainly used by housewives. Fishes were tended to be roast, vegetables to be dressing and seasoning. Highly milled boiled rice was best preferred as the cheif food, and it was cooked by following procedure; First rice was washed, and steeped in water for the time being. Next, the water was poured out and water was filled again, then rice with the water was boiled. Fish Chige was cooked in the way that fish was put into the boiled soup. Fermented sao-bean paste Chige was cooked using water in which rice had been washed. Hard-boiled beef with soy sauce was made using the method that soy sauce was properly poured after beef was boiled. A Spinach was boiled shightly with salty water. In view of those results, there were many cases that housewives did not only utilize their knowledge about foods in real dietary life, but also fell short of endeaver to do so. They chiefly made use of the cooking methods instructed from their mother or husband's mother. In conclusion, in order to illuminate housewives to have an exact nutritional knowledge about foods and cooking methods getting out of the loss of nutritions, nutritional education program must be provided for housewives.