• Journal of Animal Science and Technology
• /
• 제58권5호
• /
• pp.21.1-21.8
• /
• 2016

Background: The aim of the present study was to determine the effects of feeding trace mineralsfortified mixed microbial culture (TMC) on ruminal fermentation, nutrient digestibility, blood electrolyte status, nitrogen balance, and trace mineral balance in sheep. Methods: Mixed microbes [0.6 % (v/w) of Enterobacter sp., Bacillus sp., Lactobacillus sp., and Saccharomyces sp.] were cultured with 99 % feedstuffs and 0.4 % trace minerals including zinc and copper for ensiling. Six sheep (a mean body weight of $46.5{\pm}1.2kg$) were fed two diets: a control diet (concentrate mix and rye straw) and an experimental diet (a control diet + 3.1 % TMC). Results: TMC feeding did not induce negative effects on ruminal fermentation, nutrient digestibility, blood electrolytes, and nitrogen balance in sheep. Feeding with TMC increased the intake of trace minerals (p < 0.05) and did not affect absorption of trace minerals in the whole digestive tract. Feeding with TMC increased fecal excretion and absorbable intake, and retention of zinc and copper (p < 0.05) by 71 % and 77 %, respectively. Conclusion: Feeding with TMC resulted in higher zinc and copper bioavailability and retention without any adverse effects on sheep performance.

• Journal of Ginseng Research
• /
• 제20권1호
• /
• pp.36-41
• /
• 1996

Chemical components of Panax (P) species were compared. p. species used were Korean white ginseng, Korean, Chinese and Japanese red ginseng (P ginseng), American and Canadian ginseng (P. quinquefolium) , and sanchl ginseng (P. notoginseng). No significant difference in the proximate contents was observed among P. species. Ash, crude lipld and total sugar contents in root of P. notoginseng were found to be relatively lower than those of P. ginseng and P. quinquefolium, but the contents of crude protein and crude fiber were similar among those ginsengs. Mineral nutrient con tents showed a little difference among ginseng species. Total nitrogen contents were slightly higher in P. ginseng than P. quinquefolium and P. notoginseng and Fe and Cu were lower in Chinese and Japanese red ginsengs. Kinds and compositions of amino acids were similar but contents of amino acids were different among ginseng species. Total amino acid contents were 76.3∼83.9 mg/g in P. ginseng 53.8∼60.4 mg/g in p. quinquefolium and 54.9 mg/g in P notoginseng. Free sugar contents were lower in P. notoginseng than P. ginseng or P. quinquefolium. Sucrose accounted for 90∼92% of total free sugar contents with relatively high content in white ginsengs, while sucrose and maltose were 32-36% and 55∼60%, respectively, in red ginseng.

• Journal of Nutrition and Health
• /
• 제25권7호
• /
• pp.642-655
• /
• 1992

This study was designed to investigate the effect of nutrient intake on bone mineral density (BMD) of the lumbar spine(L2longrightarrowL4) in 41 postmenopausal women. The BMD of the lumbar spine was positively correlated with caiorie protein animal protein fat animal fat calcium animal calcium milk ad dairy calcium phosphorus iron animal iron vitamin A thiamin animal calcium milk and dairy calcium phosphorus iron animal iron vitamin A thiamin riboflavin niacin and ascorbic acid intake. Postmenopausal wmen of BMD$\geq$100% showed enhanced calorie protein fat calcium phosphrous niacin intake compared women of BMD<100% In the group of calorie protein riboflavin intake$\geq$recommended dietary allowances(RDA) BMD was significantly higher than BMD in the group of these nutrient intakes$\geq$700 mg/d is significantly higher than BMD that of examined using stepwise multiple regression analysis. From this analysis in subjects aged 50~59 years fat intake only in subjects aged 60~69 years niacin intake Ca/P in total subjects fat riboflavin intake were signifiant independent predictors of BMD In the group of menopausal significant independent predictor of BMD This study suggests that dietary calcium is a major constituent affecting lumbar spin BMD in postmenopausal women whose menopausal period is over than 5 years.

• 한국대기환경학회지
• /
• 제12권3호
• /
• pp.263-268
• /
• 1996

This study was conducted for the assessment of the effects of acid rain and soil fertilizers on photosynthetic rate, was content, and contact angle on 5-year seedlings of Japanese red pine (Pinus densiflora Sieb. et Zucc.) leaves. The seedlings were exposed to pH 3.0 (simulated acid rain), pH 6.5 (groung water) and rain (pH around 4.6). The seedlings were also treated with $Ca(OH)_2, Mg(OH)_2, and Ca(OH)_2 + Mg(OH)_2 + C.F.(compound fertilizer)$. Photosynthetic rate, stomatal conductance, was content, contact angle value, and mineral nutrient content of the leaves were measured and the results were as follows: 1. Photosynthetic rate and stomatal conductance of the leaves increased with the increase of pH. Photosynthetic rate and stomatal conductance increased with application of soil fertilizer in the pH 3.0 treatment, but showed no changes in the rain and the pH 6.5. 2. Contact angle value and was content of the leaves did not change with the pH treatment, but increased with the fertilizer treatments. 3. Mineral nutrient contents of the leaves were lowest in the rain treatment and highest in the pH 6.5 treatment. The increase of mineral nutrient contents was observed with the soil fertilizer treatments.

• Journal of Dairy Science and Biotechnology
• /
• 제28권1호
• /
• pp.9-16
• /
• 2010

Adolescents grow rapidly and have lots of schoolwork for entrance examination, so good nutrition is very important to them. However, adolescents tend to have a poor dietary behavior including frequent consumption of empty calorie foods and skipping breakfast. In particular, frequency of drinking milk has been low among Korean adolescents, thus their dietary calcium intakes has been low. Undesirable dietary behavior of adolescents is a risk factor for poor nutrition, obesity and chronic disease of them. Milk is a good source for calcium, high quality of protein, vitamin and bioactive compounds including anti-obesity component, thus it has been reported that milk helps improvement of dietary nutrient adequacy and physical growth, increment of bone mineral density, and prevention of obesity and chronic diseases. Therefore, milk consumption of adolescents should be encouraged in order to help their nutritional status, physical growth and health.

• 원예과학기술지
• /
• 제16권1호
• /
• pp.37-39
• /
• 1998

본 연구는 절화용 국화의 펄라이트 배지경 양액재배시, 국화의 생육과 절화 품질에 적합한 양액의 농도와 관주주기에 대한 기초 자료를 얻고자 실시되었다. 양액재배와 토양재배를 비교하였을 때, 초장은 양액재배에서 더 길어 절화의 품질은 좋았으나 엽내 무기이온의 함량은 두 재배간에 별 차이가 없었다. 양액재배시 국화의 생육과 개화에 있어 최적 농도를 규명하기 위해 화란 국화전용양액의 1/2, 1, 2배액을 처리한 결과, 유묘기에는 1/2배액처리도 양호하였으나 생육이 진전됨에 따라서 꽃의 생체중과 건물중이 낮은 반면, 1배액은 초장도 가장 길고 생육도 좋았다. 각 기관별 무기이온의 함량에 있어서는 뚜렷한 차이는 없었지만, 1/2 배액처리에서 전질소와 $NO_3-N$ 함량이 적었으며 2배액에서는 전질소 함량이 1배액보다 작을 뿐 큰 차이가 없었다. 또한 최적 관주주기를 구명하기 위해 양액을 하루에 2, 4, 8회로 나누어서 관주한 결과, 1배액 8회/일 관주에서 배지내 함수율 및 수분 이용율의 증대, 근권부의 신속한 양분교체로 인하여 생육이 가장 좋았다. 관주주기에 따른 각 기관별 무기이온함량에 있어서는 전반적으로 8회 관주가 높은 경향을 보였다. 국화의 양액재배시 양액농도와 관주주기가 국화의 절화수명에 미치는 영향을 살펴본 결과, 양액농도에 따라서는 큰 유의성이 없었지만 1배액이 2배액보다는 2-3일 정도 길었고, 관주주기에서는 하루 2회 관주가 4회와 8회 관주보다는 절화수명이 5일 정도 길었다.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• 제19권2호
• /
• pp.123-129
• /
• 2016

Purpose: This study was performed to evaluate the dietary nutrient intake status and hair mineral content of Korean young children. Methods: Fifty-five children who visited Seoul National University Bundang Hospital were divided into three groups by age: infants, toddlers, and preschoolers. The 24-hour recall method was used to collect the food intake data of the subjects. Hair mineral analysis was conducted using a Mass Spectrometer. Serum iron, ferritin, and calcium were also measured. Results: The mean energy intakes of the subjects were 730.3 kcal, 994.3 kcal, and 1,482.9 kcal for each age group. The mean percentage of energy intake compared to recommendation was 101.4% and was not different by age group. Toddlers of 37.8% and preschoolers of 54.5% consumed less than the Estimated Average Requirement (EAR) of calcium. Infants of 28.6%, toddlers of 10.8% and preschoolers of 9.1% consumed less than the EAR of iron. In the case of zinc, copper, and selenium, only 0% to 5% of toddlers and none of the preschoolers consumed less than the EAR of those minerals. The hair calcium, iron and copper concentrations were lower in toddlers and preschoolers than those in infants. Serum calcium levels of preschoolers were significantly lower than those of infants, whereas serum iron and ferritin levels were not. Conclusion: Hair calcium, iron, and copper concentrations were significantly lower in toddlers and preschoolers than in infants. Insufficient dietary intake of calcium and iron seems to be related with decreased hair mineral contents in young children.

• 대한지역사회영양학회지
• /
• 제10권1호
• /
• pp.3-11
• /
• 2005

The purpose of this study was to examine the long term effects of breast feeding on growth, bone development and nutrient intakes in preschool children. Subjects were 62 preschool children. Anthropometric characteristics and bone mineral density of carpus were measured using DEXA. The questionnaire was composed of health status, life style, dietary behaviors, and dietary intakes and was completed by the children's mothers. The average age of the boys was 62.4 months and that of the girls was 62.1 months. Average birth height and weight of the subjects was 50.9 cm and 3.4 kg for boys and 50.3 cm and 3.3 kg for girls, respectively. The average height, weight, $\%$ body fat, and obesity index were 111.7 cm, 19.6 kg, $15.0\%$, $-2.1\%$ in boys and 109.4 em, 18.7 kg, $17.5\%$, $0.2\%$ in girls, respectively. Forty children were fed colostrum, 21 were fed breast milk, 29 were fed formula, and 12 were fed mixed milk. There was no significant difference in growth status between children who were fed colostrum and those who were not. Children who had mixed feedings were significantly taller than those who did not (p <0.001), and children who had colostrum had significantly higher bone mineral density than those who did not ($0.25 \pm 0.04 g/ cm^2$ vs. $0.23 \pm 0.04 g/cm^2$, p < 0.05). However, the different feeding methods did not show any difference in bone mineral density. Except vitamin $B_6$, folic acid and vitamin E, vitamin, mineral and calorie intakes did not meet the Korean RDAs. Calcium intake was especially lower than recommendations by as much as $62\%$ and $70\%$ in boys and girls, respectively. There was no significant difference in nutrient intakes between children who had colostrum and those who did not. However, children who were formula consumed significantly more animal fat than those who did not (p < 0.05). Neonatal feeding and breast or formula feeding seems to associate with height, bone mineral density and animal fat intakes in preschool children, based on the results of this study. A longitudinal study is needed to clarify this relationship.

• 아시안잔디학회지
• /
• 제8권3호
• /
• pp.149-165
• /
• 1994

This report was investigated on the soil and mineral nutrient erosions in comparison among the vegetation floors of M isranthus sisensis, Arternisia stelleriana, Rhododendron mucronula turn, Zoysia ja-ponira and Pinus deusitlora communities and the naked soil on Mt. Keum-hak in Cheolwon-Koon, The erosion of clay, silt, fine sand and coarse sand of the surface soils under the Z. japonira grass-land was far less then those of M. sinensis, A. stelleriana, R. murronulatum and P. densiflora com-munities and the naked soil, The loss of mineral nutrients due to the soil erosion was the lowest level in the Z. japonira grassland and the highest level in the P. densiflora forest and the naked soil, respectively.

• 유기물자원화
• /
• 제28권1호
• /
• pp.5-14
• /
• 2020

본 실험은 유박 시용량에 따른 '네로' 블랙초크베리(Aronia melanocarpa)의 양분 요구도를 파악하여 적절한 양분시용량을 구명함으로서 생산비 절감 및 환경오염을 줄이고자 수행되었다. 100% 유박시용을 기준으로 0%(무처리), 25%, 50%, 75%로 분류하여 2년간(2018~2019년) 수체 주위에 매년 전량 산포처리 하였고 실험 조사는 2년차에 수행하였다. 토양 무기성분 농도는 처리구에 상관없이 차이가 없었다. 뿌리와 잎의 건물중은 0% 유박 처리에서 낮게 나타났고 줄기 건물중은 처리 간에 차이가 없었다. 75% 유박 처리에서 과실 건물중이 615 g으로 가장 크게 증가하였고 수량이용효율도 45.3%로 가장 높았다. 지상부:지하부 비율은 75% 처리에서 4.7로 가장 높았다. 유박시용량이 증가할수록 수관용적은 확대되었다. 수관용적은 뿌리 건물중과 유의성 있는 정의 상관관계가 관찰되었다(r²=0.977). 뿌리의 무기성분 흡수량은 철을 제외하고는 25% 유박처리구에서 가장 높았다. 잎은 무처리구에서 전질소와 철의 흡수량이 낮았고 기타 무기성분 흡수량은 유박처리구와 비슷한 수준이었다. 줄기 내 무기성분 흡수량은 50% 처리구에서 철을 제외하고 가장 높았다. 과실 내 무기성분 흡수량은 75% 처리구에서 구리를 제외하고 가장 높았고 특히 전질소 흡수량이 7.45 g으로 다른 기관 대비 가장 높았다. 전질소와 인산흡수량은 잎과 줄기 및 과실에 균일하였고 칼륨은 잎과 과실에 많이 분포하였다. 뿌리, 잎, 줄기, 과실을 합한 작물의 무기성분 총량에서 전질소는 75% 처리구에서 17.2 g으로 가장 높았고 무처리구에서 4.9 g으로 가장 낮았다. 작물체 내 기타 무기성분 흡수량은 50%, 75%, 100% 유박 처리구에서 대체적으로 높은 수준이 관찰되었다.