• Nutrition Research and Practice
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• 제13권2호
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• pp.169-177
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• 2019

BACKGROUND/OBJECTIVES: Excessive sugar intake is one of the causes associated with obesity and several chronic diseases prevalent in the modern society. This study was undertaken to investigate the effect of parenting variables based on the theory of planned behavior, on the sweetness preferences and sweets intake of children. SUBJECTS/METHODS: Parents and their children (n = 103, aged 5-7 years) were enrolled to participate in a survey for this study, after providing the required informed consent. Parents were asked to fill out a self-administered questionnaire at their residence. The sweetness preference test for children was conducted at a kindergarten (or daycare center) by applying the one-on-one interview method. RESULTS: The children were divided into two clusters categorized by the K-mean cluster analysis: Cluster 1 had higher sweetness preference (0.42 M sugar, 35%; 0.61 M sugar, 65%); Cluster 2 exhibited lower sweetness preference (0.14 M sugar, 9.5%; 0.20 M sugar, 9.5%; 0.29 M sugar, 81%). Cluster 1 had a higher frequency of sweets intake (P < 0.01), and lower sweets restriction (P < 0.05) and nutrition quotient score (P < 0.05). Sweets intake was negatively correlated with the nutritional quotient (r = -0.204, P < 0.05). The behavioral intention of parents was higher in cluster 2 (P < 0.05), while affective attitude, feeding practice, and reward were higher in cluster 1 (P < 0.001, P < 0.05, and P < 0.01, respectively). Furthermore, behavioral intention of parents showed a negative correlation with affective attitude (r = -0.282, P < 0.01) and feeding practice (r = -0.380, P < 0.01), and a positive correlation with subjective norm (r = 0.203, P < 0.05) and parenting attitude (r = 0.433, P < 0.01). CONCLUSIONS: This study indicates that the sweetness preferences and sweets intake of children is related to the parent's affective attitude, feeding practice and reward. We suggest that to reduce the sugar consumption of children, guidelines for access to sweets and pertinent parenting practices are required.

• 대한가정학회지
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• 제11권1호
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• pp.57-74
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• 1973

I. This study on planing menu for group feeding is based on the following ; 1) Decision of nutritive value is based on age, sex, and energy consumption of the students. 2) Selection of food is based on their preference for food through questionaire. 3) Amount of food calorie for each meal is based on data on energy consumption of their daily life. 4) Three data for planing menu for group feeding were based on food rice of each season, favourite foods of girl students and length of their stay at the institution. II. The menu for group feeding was evaluated on nutritive value calorie and protein, 5 basic food groups and price ; 1) The amount of calorie and protein for each season was satisfactory. 2) Each menu was composed of 5 basic food groups but the third group was not satisfactory compared with the other groups. 3) Average price of per day turned out to be 193 won which is less than the standard price, 200 won.

• Molecules and Cells
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• 제40권5호
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• pp.331-338
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• 2017

Regulation of feeding is essential for animal survival. The pharyngeal sense organs can act as a second checkpoint of food quality, due to their position between external taste organs such as the labellum which initially assess food quality, and the digestive tract. Growing evidence provides support that the pharyngeal sensory neurons regulate feeding, but much is still unknown. We found that a pair of gustatory receptor neurons in the LSO, a Drosophila adult pharyngeal organ which expresses four gustatory receptors, is involved in feeding inhibition in response to high concentrations of sodium ions. RNAi experiments and mutant analysis showed that the gustatory receptor Gr2a is necessary for this process. This feeding preference determined by whether a food source is perceived as appetizing or not is influenced by nutritional conditions, such that when the animal is hungry, the need for energy dominates over how appealing the food source is. Our results provide experimental evidence that factors involved in feeding function in a context-dependent manner.

• 한국환경복원기술학회지
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• 제27권3호
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• pp.19-28
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• 2024

The purpose of this study is to investigate the habitat of Luciola unmunsana to understand the status of land snails, which are the larvae prey, and to evaluate the effects of larval feeding preferences and prey size for the restoration of the L. unmunsana habitat as a basis for future restoration projects. The research methods included field surveys of the habitat and laboratory experiments on feeding preferences using three types of land snails (Allopeas clavulinum kyotoense, Euphaedusa fusaniana, Pupinella rufa) observed in the habitat. Field surveys of 13 L. unmunsana habitat sites revealed a total of 24 land snail species. The experimental results regarding the larvae prey were analyzed for statistical significance of feeding preferences using Chi-square tests and independent sample t-tests. Consequently, larvae showed the highest preference for A. c. kyotoense, with statistically significant differences in feeding preferences (p<0.05). Also, statistically significant differences were observed in the size between the land snails that were eaten as prey and those that were not eaten. This research can deepen the understanding of the feeding preferences of L. unmunsana larvae and provide practical guidelines for the effective conservation and restoration strategies of the firefly habitat.

• 한국환경생태학회지
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• 제23권5호
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• pp.418-430
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• 2009

두루미류 취식무리의 미소 취식지 선호에 대한 특성을 밝히기 위하여 철원지역에서 월동기인 2005년 12월에서 2006년 2월, 2007년 1월에서 2월까지 총 12회 실시하였다. 두루미와 재두루미가 먹이로 하는 쌀 낙곡의 밀도는 논의 중앙보다 가장자리에 많았다. 하지만, 두루미류는 논의 중앙보다는 논둑 인근 지역을 취식장소로 이용하는 경우가 많았다. 상대적으로 재두루미는 두루미에 비하여 논의 중앙 지역을 취식장소로 이용하는 비율이 높았다. 두루미의 경우 논둑이 높고 논둑 식생의 높이가 높은 경우와 논둑 높이와 식생의 높이를 합한 높이가 높은 경우를 취식위치로 선호하였다. 재두루미는 논둑, 식생, 논둑과 식생의 높이 합이 키에 비하여 높은 경우를 선호하지 않았다. 또한, 두루미와 재두루미에서 모두 은폐지역에서 취식하는 비율이 날씨요인과 관계가 없었다. 이러한 결과는 두루미류가 개방된 취식지(수평가시권이 넓은 지역)를 선호한다는 기존 가설과는 달리 은폐된 취식지를 선호하는 것으로 나타났다. 또한 종간의 비교에서는 두루미가 재두루미에 비하여 은폐된 지역을 선호하는 것으로 나타났다. 무리크기별 은폐지역과 비은폐지역 취식비율은 두루미와 재두루미 모두 무리크기를 고려하지 않은 취식비율과 차이가 없었다. 결과적으로 두루미가 은폐지역을 선호하고 재두루미가 은폐지역에 상관없이 취식지를 선택하는 경향은 취식무리의 크기에 좌우되지 않는 종 특이적인 성향을 보였다.

• 한국잠사곤충학회지
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• 제37권1호
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• pp.27-32
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• 1995

광식성계통 Fb잠은 1991년 춘잠기부터 양배추에 대한 섭식성을 기준으로 선발되었다. 선발 7세대째에 상엽분말을 전혀 함유하지 않은 합성사료에 의해 인공사료육을 실시하였으며 그 결과 양배추에 대한 섭식율은 급격히 증가하였다. 1994년 추기까지 14세대 동안 선발을 계속한 결과 95%이상의 양배추 섭식율을 나타냈다. 이 계통은 일반 인공사료뿐 만 아니라 수종의 채소류와 과일류에 대해서도 높은 섭식률을 나타냈으며, 견형질면에 있어서도 상당히 우수하였다.

• Ocean Science Journal
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• 제42권3호
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• pp.193-197
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• 2007

The food selectivity of tethered females of the copepod Calanus helgolandicus was examined by using the colorimetric approach. First, feeding behavior of the copepod did not show any differences between the red-color stained with neutral red and non-stained diets using the diatom Coscinodiscus curvatulus. Then, the copepods were fed a mixtures of two diets, the diatom C. curvatulus, stained with neutral red, and the dinoflagellate Gymnodinium sanguineum for $14\sim60$ minutes of feeding duration. The foregut colors of females were examined using a stereo-microscope and a video monitor. The foreguts of animals fed with a high density of diatoms in mixed diets showed a dark red color, whereas those fed with a high density of dinoflagellate in mixed diets were a dark yellow. The results suggest that this species of copepod may not selectively feed either one of the diets used for this study. Their feeding activity may be more likely related to the density of available prey in their environment. Therefore, this quick and easy colorimetric approach could provide very useful information, like the pre-screening procedure before designing and conducting the time-consuming and complex feeding experiments to understand the feeding ecology of copepods.

• 한국잠사곤충학회지
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• 제38권2호
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• pp.113-117
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• 1996

누에의 양배추에 대한 섭식성에 관한 유전양식을 밝히기 위하여 양배추에 대한 섭식성이 높은 Fb잠과 섭식율이 낮은 교잡원종들 간에 섭식성을 조사하였다. 양계통의 F1에서는 두 계통의 중간정도의 섭식성을 나타내었으며 정·역교잡간의 차이는 인정되지 않았다. F1, F2 및 BF1에서의 섭식율의 분포로보아 양배추 섭식인자는 불완전우성유전을 하며 상염색체상에 좌위하는 다수의 유전자에 의해 발현되는 것으로 사료된다.

• 동아시아식생활학회지
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• 제21권6호
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• pp.924-933
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• 2011

The purpose of this study was to investigate meal service conditions in child education centers as well as the satisfaction and preference levels of preschoolers. Preschoolers' menu preferences for bab, miyeokguk, baechu-kimch, jajangmyeon, and yogurt were all high. There were also high preferences for jjim, jorim, bbokkum, and tugim. Attention articles meal service strong concern for check family communication tools, and parents had passive for frequency of giving parent's opinion. The variables that influence on importance to meal service were purchased a fresh groceries, balance nourishment for preschooler and meal service menu for kid's health promotion when ranked. The variables that influence on satisfaction to meal service were hygiene education, mealtime and place, equipped with a sanitary feeding facilities and purchased a fresh groceries when ranked.

• 한국응용곤충학회지
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• 제14권1호
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• pp.13-21
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• 1975

1974년도 IRRI(국제미작연구소)에서 새로 입수된 48개 종품 및 게통을 공시하여 한국산 끝동매미충에 대한 저항성품종 및 게통을 선발하고 나아가 몇가지 저항성기작을 검토하기 위해 본 시험을 실하여 다음과 같은 결과를 얻었다. 1. 끝동매미충에 대한 유묘검정에서 48개 품종 또는 계통중 저항성반응(R)을 보인 것은 Balamawee, IR-26, IR-1529-525-2-2, IR-1539-1042-6, IR2061-214-2-3-5, IR2061-214-2-3-6, Jhingasail, Murungakayan 및 Vunam등 9개 품종 또는 계통이었고 중도저항성반응(MR)을 보인 것들로서는 Chianung-Shen-Yu-11, C62-1-230, C62-1-373, Dikwee, D204-1, Murungakayan-3, Palasithari-601, Peta-2802, RP6-516-34-1-8(TKM $6\times IR8$), RP6-590-10-1-11(TKM6$\times$IR8), RP9-4(IR8$\times$W1251)등 11개 품종 또는 계통이었다. 2. 저항성 및 중도저항성반응을 보인 것들을 공시하여 약충접종에 의한 저충성검정시험결과 저항성반응을 보인 것은 모두 $100\%$의 사충율을 보였으나 몇몇 품종 또는 계통에서 사충율이 좀 저하하였고 저조한 우화율을 나타내었다. 저항성반응을 보인 벼에서 2영기 약충이 살아 남을 수 있는 일수는 3-10일에 불과하였다. 즉, 유묘의 반응에서 저항성으로 나타난 벼들은 고도의 저충성이 있음을 보였다. 3. 저항성반응을 품종 또는 계통간에 차이가 없었을뿐더러 유묘의 저항성반응과도 아무런 상관이 없었다. 5. 이상의 결과를 종합해 볼 때 끝동매미충에 대한 벼의 저항성기작은 저항성 뼈는 고도의 항충성(Antibiosis)을 지니고 낮은 식이선호성(Non-feeding preference)을 나타내지만 감수성 벼는 반대로 항충성을 지니고 있지 않은데다가 높은 식이선호성을 나타내는데 있다고 보아진다.