• 한국초지조사료학회지
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• 제32권2호
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• pp.139-148
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• 2012

본 연구는 다양한 수준의 셀레늄함유 청보리 사일리지를 육성기 거세한우에 급여 시 성장특성 및 혈액성상에 미치는 영향을 조사하였다. 시험은 육성기 거세한우 20두 (개시체중 $208.8{\pm}17.9$ kg)를 공시하였고, 처리구는 셀레늄수준과 형태에 따라 4처리구 (셀레늄시비 및 비시비 청보리 사일리지이용 0.1 mg/kg 셀레늄 (대조구), 0.3 mg/kg 셀레늄 (T1), 0.9 mg/kg 셀레늄(T2) 및 무기셀레늄 0.9 mg/kg 셀레늄 (T3)로 나누어 처리구당 5두씩 배치하여, 90일간 사양시험을 실시하였다. 각 시험사료는 셀레늄함유 및 일반 청보리를 조합하여 배합비의 30%를 대체하였고, 무기셀레늄구 (T3)는 대조구사료에 0.9 mg/kg의 셀레늄수준에 상응하는 양의 sodium selenite를 첨가하였다. 사료내 조단백질 및 에너지함량은 처리구간 동일하였다. 사료 내 셀레늄의 수준 및 급여형태에 따라 사료섭취량과 증체에는 영향을 미치지 않았고, 혈중 포도당 농도는 대조구가 T1과 T2구 보다 유의하게 낮았다 (p<0.05). 혈중 총지질농도는 셀레늄수준이 증가할수록 유의하게 낮아져, T2구와 T3구가 대조구 보다 유의하게 낮았다 (p<0.05). LDL-콜레스테롤은 셀레늄급여구가 대조구보다 유의하게 낮았다 (p<0.05). 혈중 중성지방 또한 T2구가 대조구보다 유의하게 낮았다 (p<0.05). 혈중 면역글로불린농도는 셀레늄의 급여로 전반적으로 상승하는 경향을 보였고, 사료 내 같은 셀레늄수준에서 T3구보다는 T2구가 높은 양상을 나타내었다. 혈중 셀레늄농도는 셀레늄함유 청보리 급여수준이 높아짐에 따라 유의하게 증가였으나 (p<0.05), T3구는 대조구와 유의한 차이가 나타나지 않았다. 이상의 결과에서 육성한우에 대한 셀레늄함유 청보리급여는 육성우의 당 및 지질대사에 관여하는 것으로 나타났고, 특히 혈중 총지질 및 LDL-콜레스테롤의 농도를 감소시켰다. 또한 무기셀레늄보다는 청보리 내 존재하는 셀레늄이 장관내에서 더 잘 흡수되는 것으로 나타났고, 이는 육성기 및 어린 성장단계에 있는 거세한우의 면역력을 향상시키는데 도움이 될 수 있을 것으로 판단된다.

• Journal of Nutrition and Health
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• 제43권4호
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• pp.382-394
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• 2010

본 연구는 지역사회 초등학교 4학년 학생 168명을 대상으로 실시한 건강한 학교 만들기 사업의 일환으로서 교육프로그램이 학생들의 영양지식, 신체상 정립, 식습관, 영양섭취 등에 기여하는지를 조사한 결과이다. 어린이 식생활 실천지침, 건강하고 안전한 식생활, 식품 구성탑, 영양소의 기능과 급원식품, 바람직한 신체상, 어린이 비만과 편식예방 등을 주제로 하여 교실수업, 개인 과제, 교육 인쇄물, 가정통신문, 인터넷, 동영상, 전시회 등을 이용한 교육을 6개월간 시도하였다. 1) 교육 프로그램의 실시 후 대상 초등학생들의 영양지식과 식습관이 향상되어 본 교육 프로그램이 영양지식 뿐 아니라 식습관의 개선에도 도움을 준 것으로 판단되었다. 2) 현재 자신의 모습으로 인지하거나 희망하는 아동 신체상, 건강하다고 생각하거나 미래에 희망하는 청소년의 신체상 등 4가지 신체상의 인지도가 교육 프로그램에 의해 모두 바람직한 방향으로 개선되었다. 3) 남학생에서 영양지식의 총점과 식습관 점수가 유의한 양의 상관관계가 있었고, 전체 학생에서 현재 자신의 신체에 대한 불만족도가 식습관 점수와 유의한 음의 상관관계가 있는 것으로 나타났다. 4) 교육 프로그램의 실시에 의해 대상 학생들의 희망 신체상이 바람직한 방향으로 개선되었음에도 불구하고, 여전히 여학생의 현재 또는 미래 희망 신체상은 현재 자신의 모습으로 인지하는 신체상 또는 미래 건강하다고 생각하는 신체상보다 유의하게 마른 모습인 것으로 나타나 날씬함에 대한 사회적 압력이 여학생에게 더 영향을 미치는 것으로 생각된다. 이의 개선을 위해서는 체계적이고 지속적인 신체상 교육이 이루어져야 할 것으로 사료된다. 5) 영양 섭취 조사 결과, 영양교육에 의해 일부 영양소들의 섭취가 부분적으로 개선된 효과가 있었지만 칼슘, 엽산, 아연, 나트륨, 니아신 등의 영양소는 여전히 섭취가 부족하거나 과다한 것으로 나타나 영양 개선을 위한 지속적이고도 반복적인 교육이 실시되어야 할 것으로 판단된다. 학생, 교직원, 학부모, 지역사회 보건공무원이 공동으로 참여한 본 교육 프로그램의 실시를 통해 대상 학생들의 영양지식, 신체상 인식, 식습관, 영양 섭취 등이 전반적으로 유의하게 개선되었음을 확인할 수 있었다. 올바른 식생활에 대한 교육과 함께 실시되는 신체상의 정립에 대한 교육은 바람직한 식습관의 형성과 영양상태 개선뿐 아니라 건강증진 효과까지 기대할 수 있을 것이다. 이를 위해 영양 및 올바른 신체상 인식에 관한 교육은 아동기부터 체계적으로 실시되어야 할 것이다.

• Journal of Animal Science and Technology
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• 제59권5호
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• pp.10.1-10.11
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• 2017

Background: Transfer of pesticides from environment to animal products is inevitable, so the purpose of the present work was to evaluate phosalone consumption via feeding with or without sodium bentonite (SB) on performance, blood metabolites and its transition to milk of Iranian Baluchi sheep. Methods: Twenty Baluchi ewes were divided into four treatments (P1 as control, P2, P3, and P4) of five animals in which phosalone, an organophosphate pesticide, was given via diet (only for P2 and P3) at a dose of 280 mg/sheep/day for 63 consecutive days. The SB (32 g/sheep/day; for P3 and P4) was also evaluated for its ability to reduce deleterious effects of phosalone in the sheep diets. The control group (P1) did not receive any phosalone and SB during the experiment. Sampling was conducted in two periods of time including weeks 5 and 9. Results: Phosalone residues were observed in the milk samples of P2 and P3 groups during two sampling periods. During period 1, the transfer rate of phosalone from feed to milk was 0.23 and 0.02%, respectively for the contaminated diets (P2 and P3), which is relatively similar to period 2 (0.22 and 0.02%). Only 0.34 (period 1) and 0. 36% (period 2) of phosalone residue are excreted in the feces of P2 group following its daily consumption. Transfer of phosalone from feed to milk was affected (P < 0.05) by the dietary inclusion of a commercial SB, as it (SB) decreased excretion of phosalone via milk (P3). The phosalone and SB alone or together had no significant effect (P > 0.05) on the dry matter intake (DMI) and body weight (BW) gain, but feed efficiency, milk production, milk fat, dry matter (DM) and organic matter (OM) digestibility, acetylcholinesterase (AChE) inhibitory activity, hemoglobin (Hb), red blood cell (RBC), serum glutamic pyruvic transaminase (SGPT), serum glutamic oxaloacetic transaminase (SGOT), albumin and mean corpuscular hemoglobin concentration (MCHC) affected by the treatments in period 1 or 2 (P < 0.05). The Hb, RBC, and MCHC were significantly decreased (P < 0.05) by about 9.72, 20.77, and 9.71%, respectively in the group P2 as compared to those of the control group during period 1. The AChE inhibitory activity (period 1 and 2) significantly increased when phosalone administered via the diet (P < 0.05). Conclusions: Although there were no adverse effects on the performance of sheep following the intake of phosalone alone (P2 vs. P1), but other research on the long and short times to the phosalone in high and low doses with more animals is suggested. Overall, compared to the control group, addition of SB in the diet of sheep improved nutrient digestibility, animal performance, and milk health.

• Journal of Microbiology and Biotechnology
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• 제28권5호
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• pp.718-731
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• 2018

The beneficial effects of lactic acid bacteria (LAB) have been intensively investigated in recent decades with special focus on modulation of the host intestinal microbiota. Numerous discoveries of effective probiotics are driven by a significantly increasing demand for dietary supplements. Consequently, technological advances in the large-scale production and lyophilization are needed by probiotic-related industries for producing probiotic LAB for commercial use. Our study had a dual objective, to determine the optimum growth medium composition and to investigate appropriate cryoprotective additives (CPAs) for Lactobacillus salivarius, and compare its responses with other Lactobacillus species. The one-factor-at-a-time method and central composite design were applied to determine the optimal medium composition for L. salivarius cultivation. The following composition of the medium was established (per liter): 21.64 g maltose, 85 g yeast extract, 1.21 ml Tween 80, 6 g sodium acetate, $0.2g\;MgSO_4{\cdot}7H_2O$, $0.02g\;MnSO_4{\cdot}H_2O$, $1g\;K_2HPO_4$, $1.5g\;KH_2PO_4$, $0.01g\;FeSO_4{\cdot}7H_2O$, and 1 g sodium citrate. A cryoprotective additive combination comprising 10% (w/v) skim milk and 10% (w/v) sucrose supplemented with 2.5% (w/v) sodium glutamate was selected for L. salivarius, and its effectiveness was confirmed using culture-independent methods in the freeze-dried cells of the Lactobacillus strains. In conclusion, the optimized medium enhanced the species-specific cultivation of L. salivarius. On the other hand, the cryoprotective effects of the selected CPA mixture may also be dependent on the bacterial strain. This study highlights the necessity for precise and advanced processing techniques for large-scale production of probiotics in the food and feed industries.

• Asian-Australasian Journal of Animal Sciences
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• 제31권9호
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• pp.1442-1448
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• 2018

Objective: This study was conducted to evaluate the effect of different levels of total digestible nutrients (TDN) and sodium stearoyl-2-lactylate (SSL) supplementation on growth performance and blood and carcass characteristics in Hanwoo steers during the early fattening period. Methods: Sixty Hanwoo steers (average body weight, $333{\pm}36.4kg$) were randomly allotted to 3 treatments, with twenty steers per treatment, and ten steers per pen with a size of $80m^2$. Dietary treatments were as follows: CON, basal diet; treatment (TRT) 0.5, 0.5% down-spec of TDN with 0.1% SSL; TRT 1.0, 1.0% down-spec of TDN with 0.1% SSL. Results: The results demonstrated that average daily gain and feed efficiency increased with TRT 0.5 (0.85 kg and 11.68) vs CON (0.82 kg and 11.27) or TRT 1.0 (0.78 kg and 10.74), indicating that 0.1% SSL supplementation in the feed of early fattening steers may result in a saving of 0.5% TDN. No significant differences were observed amongst all treatments (p>0.05) for blood metabolite concentration and blood corpuscle values, which were all within the normally accepted range for healthy steers. Conclusion: Our study suggests that a TDN 0.5% down spec with 0.1% SSL supplemented feed may be effective and profitable for the early fattening period of Hanwoo steers without causing adverse effects.

• Asian-Australasian Journal of Animal Sciences
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• 제31권9호
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• pp.1458-1463
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• 2018

Objective: This study was done to evaluate the effect of sodium stearoyl-2-lactylate (SSL) supplementation in a total mixed ration (TMR) on the lactation performance, blood parameters, and economic efficacy of mid-lactation Holstein cows. Methods: Twenty-four cows (body weight $647{\pm}11.7kg$) were randomly divided into 4 treatment groups, with six cows per group. The dietary treatments were as follows: basal diet (CON); CON+17.5 g of top dressed SSL (treatment [TRT] 0.05); CON+35 g of SSL (TRT 0.1); and CON+70 g of SSL (TRT 0.2) per 35 kg TMR. Results: The highest level of SSL supplementation (TRT 0.2) significantly improved milk yield during the second period compared to the TRT 0.05 group (5 to 8 wks; 33.28 vs 31.09 kg/d), during the third period compared to both the CON and TRT 0.05 groups (p<0.05) (9 to 13 wks; 32.59 vs 30.64 and 30.01 kg/d) and during the overall experimental period compared to both the CON and TRT 0.05 groups (p<0.05) (1 to 13 wks; 33.43 vs 32.06 and 31.40 kg/d), respectively. No negative effects on hematological or biochemical parameters were observed due to SSL supplementation. Considering both the milk fat and protein content, the total milk price was set at 1,073.60 (TRT 0.05), 1,085.60 (TRT 0.1), 1,086.10 (TRT 0.2), and 1,064.20 (CON) won/L, with consequent total milk profits of -1.7%, 5.4%, and 3.5% for the TRT 0.05, TRT 0.1, and TRT 0.2 diet, respectively, compared to those in the CON diet. Conclusion: The milk sales revenue related to SSL supplementation of the TRT 0.1 diet was increased by up to 5.4% compared to the milk sales revenue of the CON diet. Therefore, 0.1% SSL supplementation might be effective and profitable during the mid-lactation period of cows, without producing adverse effects.

• Journal of Nutrition and Health
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• 제38권10호
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• pp.827-835
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• 2005

The purpose of this study was to investigate the relation among mineral intakes, blood pressure, and blood lipids for health management of Korean adults over 20 years old. Subjects were recruited from the district where they lived, which included rural (Yoju, n = 137) , coastal (Taean, n = 100) , and urban district (Suwon, n : 117) . hnthropornekical measurement, blood pressure measurement, dietary intake assessment using 24-hour recall method, and blood collection and analysis of blood lipids were conducted. The average age, height, weight, and BMI were 54.1 years, 168.5 cm, 67.3 kg, and 24.5 kg/$m^{2}$ for men and 53.9 years,153.8 cm,59.2 kg, and 25.0 kg/$m^{2}$ for women, respectively. The mean daily intakes of total food and energy were 1219.1 g and 1740.9 kcal for men and 1071.3 g and 1432.6 kcal for women. The mineral intakes of men and women were 448.5 mg and 400.4 mg for calcium,955.3 mg and 803.7 mg for phosphorus, 13.3 mg and 11.1 mg for iron, 4302.8 mg and 3393.3 mg for sodium,2588.0 mg and 2264.9 mg for potassium, and 8.9 mg and 7.3 mg for zinc. The daily intakes of energy, calcium, zinc, vitamin $B_{2}$, and vitamin I were $76.1\%$, $60.1\%$, $73.1\%$, $68.6\%$, and $80.4\%$ of RDAs, respectively. The intakes of energy, calcium, zinc, vitamin $B_{2}$ and I were not meet Korean RDAs. Especially, calcium, zinc, and vitamin $B_{2}$ were less than $75\%$ of RDAs. Blood pressure of the subjects was 128.3/75.5 mmHg for men and 124.1/73.7 mmHg for women. Serum lipids of men and women were 180.2 mg/dL and 184.9 mg/dL for total cholesterol, 160.8 mg/dL and 137.6 mg/dL for triglyceride,41.5 mg/dL and 44.7 mg/dL for HDL-cholesterol,106.6 mg/dL and 112.7 mg/dL for LDL-cholesterol, and 3.5 and 3.3 for atherogenic index. While serum triglyceride and AI of men was significantly higher, HDL-cholesterol was lower than those of women. In the relation among mineral intakes, blood pressure, and serum lipids, we found a significantly negative correlation of intakes of calcium, calcium/phosphorus, calcium density with systolic blood pressure. There were significantly negative correlation between intake of calcium/phosphorus and serum cholesterol, calcium density and serum cholesterol, sodium intake and serum HDL-cholesterol. Based on these results, we concluded that high intakes of calcium, calcium/phosphorus and low sodium intake were associated with favorable blood pressure and serum lipid profiles in adult men and women. (Korean J Nutrition 38(10): 827$\sim$835,2005)

• 대한지역사회영양학회지
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• 제28권3호
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• pp.235-244
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• 2023

Objectives: Based on the results from the Korean Total Diet Study (KTDS), the sodium (Na) and potassium (K) intake of Koreans were estimated and compared with intake estimates from the Food & Nutrient Database (FNDB), as in the Korea National Health and Nutrition Examination Survey (KNHANES) to verify the validity of these estimates. Methods: One hundred and thirty-four representative foods (RFs) covering 92.5% of the total food intake of Koreans were selected, and 228 pairs of corresponding 'RF x representative cooking method' were derived by reflecting the methods used mainly in terms of frequency and quantity in their cooking. RF samples were collected from three cities with a larger population size in three regions (nine cities) nationwide, and six composite samples were made for each RF, considering its regional and/or seasonal characteristics. One thousand three hundred and sixty-eight 'RF x representative cooking method' pair samples were prepared, and the Na and K contents were assessed using inductively coupled plasma atomic emission spectrometry (ICP-MS). The Na and K intake of the Korean population was estimated by linking the content with the food intake data from the 7th KNHANES. Results: The mean Na and K intake of Koreans were 2,807.4 mg and 2,335.0 mg per person per day, respectively. A comparison with the Na and K intake from KNHANES, including only RFs of KTDS, showed comparable results with less than 5% variation. While the contribution and ranking of food items to Na intake were similar between KNHANES and KTDS, there were differences in K intake. This was attributed to the large discrepancies in the K content of rice and coffee between KTDS results and the values in the 9th Revision of the National Food Composition Table used in KNHANES. Conclusions: The Na and K intake of Koreans estimated based on the KTDS, which performed nutrient analysis on samples prepared to a 'table-ready' state using foods of the representative collection, was similar and comparable with that of KNHANES. This supports the validity and usefulness of FNDB-based nutrient intake estimation at the population level. The list of nutrients studied in KTDS is expected to be expanded, allowing for intake estimation of nutrients with currently insufficient or absent information in the FNDBs in use.

• 한국식품과학회지
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• 제36권5호
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• pp.804-811
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• 2004

시중에서 유통되고 있는 제품 중 사카린나트륨 및 아세설팜칼륨이 사용 가능한 대상식품인 빵 또는 떡류, 김치류, 음료류, 어육가공품, 건과류, 아이스크림류, 잼류 및 발효유류 등 46종 755품목을 대상으로 인공감미료 2종에 대한 사용실태를 파악하고 식이를 통해 실제 섭취되는 인공감미료의 총 섭취량을 조사하여 FAO/WHO의 ADI와 비교 검토함으로서 인공감미료의 실제 섭취량과 ADI간 안전수준평가 및 사용기준 개정시 기초 자료로 활용하고자 수행하였다. 따라서 분석된 결과를 기초로 식품유형별, 연령대별, 성별 및 인공감미료별 사용실태를 파악하고 국민영양조사자료에 근거하여 대상식품의 유형과 연령에 따른 인공감미료별 1인 1일당 추정섭취량을 산출하였으며 FAO/ WHO에서 설정한 ADI와 비교 검토한 결과, 총 검사건수 755건 중 57건의 인공감미료가 검출되어 7.6%의 검출율을 나타내었으며 인공감미료별 검출건수와 검출율은 각각 사카린나트륨 49건(6.5%) 및 아세설팜칼륨 11건(1.5%)으로 나타났다. 또한, 대상식품별 일일추정섭취량을 산출한 결과 사카린나트륨은 단무지에서, 아세설팜칼륨은 아이스크림에서 가장 높은 것으로 나 타났다. 연령별 ${\Sigma}EDI$는 1.89-4.91 mg/man/day의 범위로 13-19세에서 인공감미료 섭취가 가장 많았으며 65세 이상에서 가장 낮았다. 또한 각 인공감미료를 연령대별로 보면 사카린나트륨은 30-49세, 아세설팜칼륨은 13-19세에서 가장 섭취량이 많은 것으로 나타났다. 성별 ${\Sigma}EDI$는 남성은 5.91 mg/man/day, 여성은 4.89 mg/man/day으로 나타났다 국민영양조사표 등의 식품별 1인 1일당 섭취량과 인공감미료별 평균검출농도로부터 일일추정 섭취량을 산출하였을 때, 인공감미료별 ${\Sigma}EDI$는 사카린나트륨 4.13 mg/man/day, 아세설팜칼륨 1.25 mg/man/day로 각 인공감미료의 ADI를 국민평균체중 55 kg으로 환산한 275-825 mg/man/day와 비교하였을 때 매우 낮은 수치를 나타내었으며 이 결과는 ADI 대비 0.2-1.5% 수준이었고 사용가능 대상식품의 이론적 TMDI의 1.2-13.5%의 수준으로 사용대상식품을 통한 인공감미료의 섭취는 안전하다고 판단된다.

• 한국생활과학회지
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• 제22권4호
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• pp.593-607
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• 2013

This study was conducted to identify adults' knowledge, dietary behavior related to sodium, and attitude towards. The purpose of this study is to examine the effects of the quality of multiple roles and psychological well-being upon parenting behavior among employed mothers. The subjects were 172 employed mothers living in Seoul, Korea. The results are as follows. First, the quality of parental role was related to all of subscales of parenting behaviors of employed mothers. Second, employed mothers' higher autonomy was significantly associated with greater intimacy and reasoning guidance in their parenting. Third, employed mothers with greater positive relationship and autonomy were more likely to exhibit limit setting. Finally, higher level of environmental mastery and autonomy was related to greater parental involvement. Mothers' psychological well being was not significantly related to mothers' responsiveness.