• Asian-Australasian Journal of Animal Sciences
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• 제21권8호
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• pp.1178-1182
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• 2008

The present study was designed to assess the influence of caeca on the availability of calcium, phosphorus, magnesium, manganese and copper from soybean, sunflower, rapeseed, sesame, fish and meat cum bone meal in adult roosters. The excretion of endogenous origin minerals viz., copper, magnesium, manganese and calcium was significantly (p<0.001) higher in caecectomized than in normal roosters. The difference in the endogenous excretion was 50; 60.45; 40.35 and 29.63 per cent for copper, magnesium, manganese and calcium, respectively, in caecectomized roosters. The caeca played a pivotal role in the reabsorption of endogenous origin calcium, magnesium, manganese and copper. The mechanism of phosphorus absorption by the caecal epithelium was negligible. The caecectomized roosters underestimated the bioavailability of copper in sunflower meal and manganese in almost all the test feedstuffs. The present investigation revealed that the caeca played a critical role in the absorption of minerals from vegetable protein feedstuffs which escape digestion and absorption in the small and large intestinal segments.

• Asian-Australasian Journal of Animal Sciences
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• 제10권6호
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• pp.671-678
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• 1997

The objective was to evaluate method of feeding (free access or intubation), method of slaughter (carbon dioxide gas or barbiturate) and digesta flushing medium (distilled water or physiological saline), in the development of an ileal amino acid digestibility assay for 4 week-old broiler chickens. Three diets were used (commercial (C), semi-synthetic meat-and bone meal (MBM) or wheat (W)). For the coarser C and W diets but not for the MBM diet, feeding method had a significant effect on concentrations of chromium (Cr), nitrogen (N), acid detergent fibre (ADF) and neutral detergent fibre (NDF) in the crop contents at a set time after a meal. There appeared to be a selection of food particles under free-access feeding. For birds receiving the wheat diet there was an effect (p < 0.05) of sampling time after feeding on the concentrations of Cr, N, ADF and NDF/Cr in the crop contents. Flushing ileal digesta with distilled water or saline led to similar apparent ileal N digestibility coefficients. Birds given the MBM diet, and killed by inhalation of $CO_2$, had significantly (p < 0.05) lower apparent ileal N digestibility coefficients (73 versus 80%) than those killed by barbiturate overdose.

• 한국가금학회지
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• 제22권4호
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• pp.213-221
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• 1995

Five experiments were conducted to evaluate the effect of dietary supplemental folic acid(FA) in starting broiler chicks. In the first two experiments, basal diets based on corn and soybean meal contained 0.6 mg/kg FA but no supplemental methionine or choline. At 18 d of age, chicks showed curvilinear responses to folic acid supplementation with maximum growth and feed efficiencies at 1.45 mg/kg FA diet. The liver FA response was also curvilinear but reached a plateau at 1.70 mg/kg FA diet. The basal diet for 3 additional experiments contained soybean meal that had been washed with methanol to remove most of the choline. The diet contained only 0.6 mg /kg folic acid and 754 mg /kg choline. Chicks exhibited a larger growth response to folic acid at low choline levels as evidenced by a significant FA x choline interaction. FA supplementation increased but then decreased valgus leg deformity. Choline supplementation also decreased the incidences of valgus and varus leg deformities and decreased bone ash and increased the incidence of tibial dyschondroplasia. It is concluded that chicks fed diets based on practical ingredients require from 1.45 to 1.70 mg /kg FA diet and also 1.60 mg/kg FA when choline is offered near the NRC recommended level of 1,300 mg/kg.

• 동아시아식생활학회지
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• 제14권2호
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• pp.113-122
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• 2004

This study was conducted to examine the correlation among growth development, bone mineral density, and nutrient intakes in preschool children. A total of 62 preschool children measured the anthropometric characteristics and the bone mineral density of carpus using DEXA. The questionnaires categorized to determine health status, life style, dietary behaviors, and dietary intakes were filled out by children's mothers. The average ages of the study subjects were 62.4 months in boys and 62.1 months in girls. The birth height and weight of the subjects were 50.9 cm and 3.4 kg in boys and 50.3 cm and 3.3 kg in 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 cm, 18.7 kg, 17.5%, 0.2% in girls, respectively. The bone mineral density in carpus was 0.25 g/cm$^2$ in boys and 0.24 g/cm$^2$. In girls. Proportions of children having regular meals were 69.0%, 94.7%, and 69.0% for breakfast, lunch, and dinner, respectively. The major reasons for irregular meal were poor appetite and lack of time for breakfast and snacks for dinner. Most of the children(52.6%) had breakfast with the whole family together, and all the children had lunch and dinner with a part of the family. Most of the children answered they had snack more than once a day, and 64.3% had an unbalanced diet. The intakes of energy, calcium, iron, zinc, vitamin A, vitamin B$_1$, niacin, and vitamin C did not meet the Korean RDAs. Average bone mineral density in carpus was positively correlated to the body weight, the total body water, the lean body mass, and the obesity index, respectively(p＜0.01, p＜0.01, p＜0.01 and p＜0.01). The body weight, the total body water, and the lean body mass showed the significant negative correlations with the animal iron intake(p＜0.05, p＜0.01 and p＜0.01). The bone mineral density in the distal carpus was negatively correlated to the animal protein intake and the animal iron intake(p＜0.05 and p＜0.05). And the bone mineral density in the ultradis carpus and the average bone mineral density in the carpus were positively correlated to the plant calcium intake(p＜0.05 and p＜0.05). Therefore, more systematic studies to investigate the roles of protein, iron, and calcium in growth development of preschool children were required.

• 한국유기농업학회지
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• 제9권2호
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• pp.83-99
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• 2001

농산부산물을 이용한 엽채류 전용 유기액비를 개발하기 위하여 액비자재와 물을 1:4로 혼합 하여 45일간 혐기발효 후 시험한 결과는 다음과 같다. 1. 액비원료중 어분과 골분은 질소, 인산 및 칼리등 양분함량이 현저히 많았다. 추출액비의 무기태 질소는 골분과 어분이 많고 인산, 칼리, 석회 및 고토성분은 계분, 대두박 및 쌀겨에서 많았다. 2. 유기액비의 부숙 안정화 과정중 암모니아가스는 2ppm이하로 발생되었으며 탈취제 처리로 안정화된 액비내 세균수는 급격히 감소하였다. 유기액비의 속성 부숙 안정화를 위한 부숙촉진제인 설탕과 미생물제 처리간 온도는 차이가 없었으나 황화수소 발생량은 농산부산액비 1,761ppm에 비하여 농산부산액비+설탕+미생물제 처리는 914ppm으로 48%감소하였다. EC는 농산부산 유기액비에 설탕 첨가로 현저히 높았고, 제조후 35일 경과부터 감소하는 경향이었다. 3. 결구상추 및 배추의 생체 수량은 계분50+골분30+쌀겨20%조합에서 가장 높았다. 배추의 수량은 관행농법 10,875kg/10a에 비하여 농산부산 유기액비는 13,656kg/10a로 26% 증수하였으며 가식부의 질산염 함량은 관행농법 2,426ppm에 비하여 농산부산 유기액비는 2, 150ppm으로 11.4%감소하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제13권9호
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• pp.1239-1244
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• 2000

In order to investigate the effect of incorporation of thermally processed cereal (maize) grain and differently degradable protein sources in the calf starter, twenty four newly born crossbred $(Bos\;taurus{\times}Bos\;indicus)$ calves were assigned at random to six diets in a $3{\times}2$ factorial design involving three protein sources viz. groundnut meal (GN), cottonseed meal (CS) and meat and bone meal (MB), each along with two differently processed grain, namely ground raw (R) and pressure cooked (P) maize. The corresponding calf starters with green oats (Avena sativa) were given free-choice from 14 d onwards till the end of the 90 d experimental feeding. A restricted milk diet was fed till the age of weaning at 60 d. Total DM intake was not affected by cereal or protein sources. However, daily intake of DM (59.23 vs 66.45 g) and CP (12.38 vs 14.10 g) per kg $W^{0.75}$ was reduced (p<0.05) due to cereal processing. Better (p<0.05) feed and protein efficiencies after weaning and during entire period in calves fed processed maize resulted in a trend of higher $(p{\leq}092)$ growth rate especially when GN was the source of protein. In comparison among protein sources, calves fed MB diets tended to grow faster $(p{\leq}098)$ concurrent with a higher CP intake before weaning. It is thus evident that thermal processing of maize in the calf starter seems to improve calf performance. Moreover, results indicated that feeding of protein and starch sources of matching ruminal degradability may prove beneficial for early growth of crossbred calves.

• Animal Bioscience
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• 제34권12호
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• pp.1951-1962
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• 2021

Objective: This study was conducted to evaluate single cell protein (SCP), produced from Methylococcus species, as a protein source on the growth performance, carcass traits and gut health of broiler chickens. Methods: Ten iso-nitrogenous and iso-caloric diets containing 0 (Control), 2.5%, 5%, 7.5%, and 10% SCP replacing either soybean meal (T₁ to T₅) or fish meal (T₆ to T₁₀) were formulated. Each diet prepared for starter (0 to 14 days), grower (15 to 21 days), and finisher (22 to 42 days) phases was offered to four replicates of 10 chicks each (n = 400). Growth performance at different phases and carcass characteristics and intestinal morphology on 42nd day of trial were measured. Results: Body weight gain in groups fed 2.5% and 5% SCP diets were comparable to control during different phases and cumulatively, however lower (p<0.01) in 7.5% and 10% SCP diets. Feed conversion ratio was better (p<0.01) in 2.5% and 5% SCP diets. Dressing percentage, abdominal fat percentage and meat:bone ratio were not affected (p>0.05) by SCP inclusion in the diets. However, breast percentage was higher (p<0.01) in 2.5% and 5% SCP groups and thigh percentage higher in 7.5% and 10% SCP groups. Total microbial count in duodenum, jejunum and ileum were not affected (p>0.05) by SCP inclusion up to 10% in diets. Duodenal villi length and crypt depth were highest (p<0.01) in group fed 5% SCP diets and lowest in group fed 10% SCP diets. Jejunal villi length and crypt depth as well as ileal villi length were lowest (p<0.01) in group fed 10% SCP diets. Body weight gain, feed consumption, feed conversion ratio and gut health were better (p<0.01) in broilers fed fish meal based diets compared to soybean meal based diets. Conclusion: It was concluded that inclusion of SCP up to 5% replacing soybean meal in broiler diets is beneficial in improving growth rate, breast yield and gut health status.

• 기본간호학회지
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• 제16권3호
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• pp.325-332
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• 2009

Purpose: This study was done to investigate the relationship among the life style, body composition, and BMD in female college students. Method: For this study, 320 female college students aged 18 through 35 were sampled. Data were collected from June to September, 2007. The BMD was measured with Dual Energy X-ray Absorptiometry, body composition with the Body Composition Analyzer, and stature was also taken. Results: Our findings indicated that the relationship among the life style, body composition and BMD significantly varied and that meal times (F=3.318, p= .038) and muscle mass (r= .240, p< .001) and fat-free mass (r= .233, p< .001) showed a significant positive relationship with BMD. Conclusions: Our findings indicated that optimal levels of the fat-free mass and muscle mass should be maintained. Since a decrease in the quantity of bones is expected to cause health issues for women after menopause, it is necessary to reduce risk factors including the unhealthy life style of college women that may lead to osteoporosis, and to introduce preventive nursing interventions against osteoporosis.

• Journal of Nutrition and Health
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• 제38권7호
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• pp.570-577
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• 2005

The purpose of this study was to investigate the effect of bone mineral density on life styles, dietary habits and nutrient intakes among the male college students. The subjects were divided into four groups; $Q_1$ (calcaneus BMD < 25 percentile, n = 117), $Q_2$ (25 percentile $\le$ calcaneus BMD < 50 percentile, n = 118), $Q_3$ (50 percentile $\le$ calcaneus BMD < 75 percentile, n = 118) $Q_4$ (calcaneus BMD $\ge$ 75 percentile, n = 116). And they were asked about general characteristics, life style, dietary habit, and nutrient intake using questionnaire and 24-hr recall method. They were measured the bone mineral density of calcaneus using quantitative ultrasound. The average age of the subjects of the study was 23.0 yews and the average height, weight, and BMI were 174.7 cm, 69.0 kg, $22.5 kg/m^2$. The bone mineral density in calcaneus was $0.43 g/cm^2$ in $Q_1,\;0.50 g/cm^2$ in $Q_2,\;0.56 g/cm^2$ in $Q_3$, and $0.69 g/cm^2$ in $Q_4$ (p < 0.001). The results showed that $Q_1$ tended to have irregular exercise compared to the other three groups. Compared with $Q_1$ and $Q_2$, the frequency of skipping breakfast was lower in $Q_3$ and $Q_4$. Also the results showed that the $Q_4$ was significantly more often to drink coffee compared with the other three groups (p < 0.01). The mean daily energy intake was 2210.6 kcal ($88.4\%$ of RDA). The intake of energy, vitamin $B_2$, calcium, and zinc did not meet the Korean RDA. Also the $Q_2$consumed significantly lower intakes of protein (p < 0.05) and plant protein (p < 0.05) compared to the $Q_3$ and $Q_4$. The $Q_1$ and $Q_2$ consumed significantly lower intakes of vitamin $B_2$ (p < 0.01) compared to the $Q_3$ and $Q_4$. In conclusion, male student in lower bone mineral density appeared to have unhealthy life styles and dietary habits in terms of irregular exercise, high frequency of skipping breakfast and lower intakes of protein, vitamin $B_2$ showing a strong need proper education on meal practices and exercise habits for the bone health.

• 한국식생활문화학회지
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• 제21권1호
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• pp.86-98
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• 2006

본 연구에서는 채식, 비채식 남녀대학생을 대상으로 골밀도를 측정하고 신체계측, 식습관, 운동 등의 요인이 골밀도에 미치는 영향을 조사하였으며 결과는 다음과 같다. 1. 채식남학생은 33명(44.0%), 여학생은 34명(25.2%), 비채식군남학생 42명(56.0%), 여학생 101명(74.8%)이었으며 평균신장과 체중은 채식남학생 172.61cm, 62.42kg, 비채식남학생은175.38cm, 72.52kg, 채식여학생은 160.47cm, 55.76kg, 비채식여학생은 161.77cm, 56.34kg이었다. 2. 평균 BQI은 남학생군에서 채식군과 비채식군 각각 101.73, 107.43이었고, 여학생군에서는 각각 84.15, 89.64이었다. Z-score는 채식남학생 -0.16, 비채식남학생 0.15, 채식여학생은 -1.07, 비채식여학생은 -0.73이었고, T-score는 채식남학생 -0.28, 비채식남학생 0.03, 채식여학생 -1.07, 비채식여학생은 -0.77이었다. 3. 조사대상자의 골밀도 상태를 정상, 골감소증, 골다공증 3군으로 분류하였을 때 골밀도가 정상인 경우는 채식남학생 75.8%, 비채식남학생 83.3%, 채식여학생은 44.1%, 비채식여학생은 60.4%이었다. 골감소증은 채식남학생 24.2%, 비채식남학생 16.7%이었고, 여학생의 경우 각각 55.9, 37.6%로 채식군의 골감소증 비율이 높았다. 조사대상자에서 골다공증은 비채식여학생군에서 2명(2.0%)이었다. 4. 식습관을 조사한 결과 영양보충제를 섭취하지 않는 비율은 채식남학생 66.7%, 비채식남학생 54.8%, 채식여학생 58.8%, 비채식여학생 44.6%이었고, 규칙적으로 식사를 하는 경우는 채식남학생 75.8%, 비채식남학생 50.0%이었고, 채식여학생은 44.1%, 비채식여학생 34.7%으로 채식군의 비율이 높았다. 육식과 채식을 혼합하여 섭취하는 비율은 비채식남학생 83.3%, 비채식여학생 87.1%이었으며, 아침을 매일 먹는 채식남학생은 78.8%, 비채식남학생은 33.3%, 채식여학생 47.1%, 비채식여학생 39.6%이었다. 또한 식사의 양은 과식한다는 응답이 채식남학생 24.2%, 비채식남학생 38.1%, 채식여학생은 29.4%, 비채식여학생 40.6%으로 비책식군의 과식율이 높았다. 5. 식품 섭취빈도는 두부 및 콩제품을 매일 섭취하는 경우는 채식남학생 54.6%, 비채식남학생 16.7%, 채식여학생은 38.2%, 비채식여학생이 16.8%이었다. 우유 및 유제품을 매일 섭취하는 경우는 채식남학생 6.1%, 비채식남학생 33.3%, 채식여학생 14.7%, 비채식여학생은 21.8%이었으며, 녹차, 커피 등 차를 마시지 않는다는 비율은 채식남학생 69.7%, 비채식남학생 28.6%, 채식여학생 29.4%, 비채식여학생 25.7%이었다. 인스턴트 식품을 매일 섭취한다는 응답율이 채식남학생 9.1%, 비채식남학생 21.4%, 채식여학생은 17.7%, 비채식여학생은 14.9%이었다. 6. 운동, 체중 조절 등에 대한 조사 결과 항상 운동을 하는 경우는 채식남학생 30.3%, 비채식남학생 28.6%, 채식여학생 14.7%, 비채식여학생 18.8%이었으며 운동시간은 $1{\sim}2$시간 하는 경우는 채식남학생 30.3%, 비채식남학생 38.1%, 채식여학생은 8.8%, 비채식여학생은 17.8%이었다. 체중에 만족하는 정도를 보면 채식남학생 57.6%, 비채식남학생 23.8%, 채식여학생은 23.5%, 비채식여학생은 15.8%가 만족한다고 하였다. 체중 조절 경험에서 경험이 있는 경우가 채식남학생 3.0%, 비채식남학생 31.0%, 채식여학생은 23.5%, 비채식여학생 31.7%이었다. 7. 골밀도 BQI값과와 몇가지 요인의 상관관계를 살펴보았을때, 채식남학생은 영양보충제의 섭취와 유의적인 양의 상관관계를, 해조류의 섭취정도와 유의적인 음의 상관관계를 나타내었다. 비채식대학생의 경우 골밀도와 여러 요인과는 유의적 상관관계를 보이지 않았다. 채식여학생은 식사규칙성에서 유의적 음의 상관관계를, 식사량과 양의 상관관계를 보였다. 비채식여학생군에서도 비채식남학생군과 같이 전반적으로 유의적 상관관계를 보이지 않았다.