• Preventive Nutrition and Food Science
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• 제7권4호
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• pp.367-372
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• 2002

This study investigated the effects of dietary soy protein and Ca on the lipid profiles of rats fed fat-enriched diets. Rats were divided into two groups and fed either a casein-low Ca (Exp I) or ISP-high Ca diet (Exp II) for a control period of 4 weeks. The two groups of rats were again subdivided into 4 groups and fed one of 4 experimental diets for another 4 weeks. The experimental diets consisted of 18% beef tallow and 1 % cholesterol, in which either 20 % casein or ISP with one of two levels of Ca, high (1 %) or low (0.1 %). The concentrations of total lipid, cholesterol and triglyceride in serum, liver and feces were determined. At the end of the control period, the serum total lipid and cholesterol concentrations were low in the rats fed ISP-high Ca diet (67~76% and 83~86%). During the next 4 week period, these concentrations remained significantly lower in rats fed the diets containing ISP and high Ca compared with those on casein and low Ca diets (p ＜ 0.05). Total lipid and cholesterol concentrations in feces were significantly higher in the ISP-high Ca dietary group at 4 weeks, and high in both high Ca groups at 8 weeks. This study demonstrates that both soy protein and Ca reduce serum and liver cholesterol, triglyceride, and total lipid in rats fed fat-enriched diet, and that they have an additive effect when combined.

• Journal of Nutrition and Health
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• 제22권6호
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• pp.507-515
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• 1989

Ten healthy wome 2-~25 years participated in a 5-week metabolic study to investigate the daily riboflavin requirement of Korean women. Three daily menu and meal patterns were used. Low riboflavin(LR) diet provided riboflavin at a level of 0.71mg / 1000Kcal based on food composition table. High riboflavin(HR) diet provided 1.14mg / 1000Kcal. The riboflavin status was assessed by erythrocyte glutathione reductase activity coefficient(EGRAC) and urinary exretion of riboflavin. Mean EGRAC of LR period and HR period were 1.17+0.08 and 1.01+0.03, repectively. There were discrepanices of riboflavin content of experimental diet between chemical analysis and calculation by Korean food composition table. Urinary riboflavin excretion of subjects was acceptable over the whole study period. It appeared that 0.71mg / 1000Kcal is requirement of riboflavin to maintain EGRAC withing normal range. Thus, it is suggested that current recommendation of 0.6mg / 1000Kcal of riboflavin intake may not be adequate as RDA level in Korea.

• Journal of Nutrition and Health
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• 제31권5호
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• pp.957-964
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• 1998

The study was undertaken to assess the degree to which subjects were compliant with a specific metabolic diet in a controlled outpatient feeding study. The study consisted of a two-week control period in which subjects consumed a control diet consisting of 38-40% fat, 18-20% protein, 40-42% carbohydrate, followed by a three-week experimental period during which each subject consumed the control diet plus one of the four fiber supplements(20g/4ay) assigned on a random basis on the trust day. All meals were prepared and eaten in a metabolic feeding laboratory, with the exception of Saturday and Sunday meals that were packed for take-out. Fifty-seven healthy adult men, aged 18-65 years participated in the study. Dietary compliance index(CI) defined as the percent deviation of actual consumption from the prescribed food's and unconsumed prepared foods. The CI reflected the additional 'non-prescribed foods' and unconsumed 'prescribed foods'. A CI was calculated for all subjects. A CI of 5% or more was defined as poor compliance. Overall, dietary compliance was substantially improved for the entire group over the course of the study. Significant increase in compliance far energy and macronutrient intake occurred between the baseline and experimental periods. Within a non-obese group, dietary compliance fir energy improved from 5.5% to 3.3% by the end of the study(week 1vs week 5, respectively, p<0.05). However, between non-obese and obese group, dietary compliance was not different. (Korean J Nutrition 31(5) : 957-964, 1998)

• Journal of Ginseng Research
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• 제4권2호
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• pp.146-164
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• 1980

In this paper it was attempted to observe the effect of defatted panax ginseng supplement of the growth rate, feed and protein efficiency ratios, and the contents of cholesterol, total lipid and protein in the serum, liver and aorta in Sprague-Dowley Albino male rat (weighing 83 ${\pm}$ 4 g). Seven kinds of experimental diets were prepared as follows : Stock (control) diet, ginseng control diets supplemented with 0.5, 1.0 and 3.0% of ginseng powder to the stock diet, and defatted ginseng Powder diets supplemented with 0.5, 1.0 and 3.0% of defatted ginseng powder to the stock diet. .All diets contained same level of lipid and protein, respectively. The results obtained are as follows : 1. The growth rate in the feeding group of 0.5% defatted ginseng powder diet for 16week were higher than other diet groups. 2. Feed and Protein efficiency in 0.5% defatted ginseng group showed similar tendency to that in body growth rate. 3. The total cholesterol contents in the serum of 0.5% defatted ginseng Powder diet$.$ group showed the tendency to decrease gradually for 4 to 12 weeks, maintaining higher level than other groups. The free cholesterol contents in the serum of defatted ginseng powder diet group in 8 the and 16th weeks were higher than all ginseng control diet group. The total and free cholesterol contents in the liver of all defatted ginseng diet groups in 16th week were higher than hose of all ginseng control groups. The total cholesterol content at 12h week and the free cholesterol content at 16th week i n the aorta of all defatted ginseng diet groups were lower than those of ginseng control groups, respectively. 4. The total lipid contents in the serum of 1.0 and 3.0% defatted ginseng diet groups at 2nd to I2th weeks were lower than other groups, and those in the liver and aorta of all defatted ginseng diet groups at 12th weeks were lower than those of ginseng control diet groups. 5. The protein contents of the serum and aorta were continuously increased throughout whole experimental period in all experimental groups. The protein content of the liver of all groups were decreased at 2nd week and after then no change was observed.

• Journal of Animal Science and Technology
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• 제60권10호
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• pp.24.1-24.8
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• 2018

Background: Following the ban on the importation of import-dependent fed ingredients in most developing countries, the need to look inward for local content is now compelling. Thus, leaf meals that have phytogenic additive potentials are envisaged will be a viable feed ingredient in rabbit diets. Methods: The effect of dietary inclusion of gliricidia leaf meal (GLM) with or without multi-enzyme (E) supplementation in rabbits was investigated using ninety-six 35-day old rabbits of crossbreed (Newzealand and Chinchilla). One basal diet that met the requirements of growing rabbit was formulated (Diet 1). Thereafter, another two diets were formulated to contain 15% GLM and 15% GLM plus multi-enzyme at 1 g/kg and designated as diets 2 and 3 respectively. The rabbits were randomly distributed into the 3 diets (32 rabbits/treatment; 4 rabbits/replicate) and fed their respective experimental diets for 8 weeks. Results: The body weight and daily weight gain of the rabbits fed on GLM free diet and those on GLM-based diets (diets 1 and 2) were similar at finishing period of 63-91 day but have lower (P < 0.01) values than those rabbits fed GLM + E based diet (diet 3) at finishing period (63-91 days) and whole fattening period (35-91 days). The apparent dry matter and crude protein digestibility of rabbits fed control diet and those fed 15% GLM based diet were lower (P < 0.05) than those fed 15% GLM + E-based diet. Triglycerides concentration of rabbits fed 15% GLM-based diet without enzyme addition were lower (P < 0.05) than those observed for rabbits on the rest test diets. Cholesterol and Low-Density Lipoprotein levels of rabbits fed 15% GLM and 15% GLM + E-based diets were lower (P < 0.05) than those fed the GLM free diet. The superoxide dismutase and glutathione peroxidase of rabbits fed the GLM free diet (diet 1) were significantly (P < 0.05) lower than those fed the 15%GLM and 15% GLM + E-based diets. Conclusion: Dietary inclusion of GLM at 15% of the diet did not have a negative effect on the rabbits postweaning period (35-63 days) but will require multi-enzyme supplementation to enhance growth indices at finishing period (63-91 day) without precipitating negative effect on the rabbits' health status.

• 한국작물학회지
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• 제58권4호
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• pp.443-450
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• 2013

Effects of newly developed functional rice grains Goami (high-amylose rice) and Nokwon (green-kerneled rice) on the glucose metabolism and antioxidative defense system in C57BL/6N mice under high fat diet condition were investigated. Animals were randomly divided into five groups (n = 8) and given experimental diets for eight weeks: normal control diet (NC), high fat diet (HF), and high fat diet supplemented with white rice (HF-WR), Goami rice (HF-GR), and Nokwon rice (HF-NR). At the end of the experimental period, the HF group exhibited markedly higher blood glucose level, insulin concentration, plasma lipid peroxidation and lower hepatic glycogen concentration than that exhibited by NC group. However, diet supplementation of Goami and Nokwon suppressed the high fat diet-induced hyperglycemia and oxidative stress through inhibition of the glucose-regulating enzymes and enhancement of the antioxidant enzymes activities. The results illustrate that the new functional rice Goami and Nokwon may be useful in the development of functional foods with preventive effect against high fat diet-induced hyperglycemia and oxidative stress.

• Journal of Nutrition and Health
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• 제40권3호
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• pp.235-241
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• 2007

The aim of this study was to define an arginine effect when added to a diet. The influence of arginine supplements on bone mineral density and content were studied in young female Sprague-Dawley rats fed either an arginine supplemented diet or control diet. Twenty four rats (body weight $83{\pm}5g$) were randomly assigned to one of two groups, consuming casein or casein with supplemented arginine diet. All rats were fed on experimental diet and deionized water ad libitum for 9 weeks. Bone mineral density (BMD) and bone mineral content (BMC) were measured using PIXImus (GE Lunar Co, Wisconsin, USA) in spine and femur 3, 6, and 9 weeks after feeding. The serum and urine concentrations of Ca and P were determined. Diet did not affect weight gain and mean food intake. The serum concentration of Ca and P were not changed by arginine supplementation. Urinary Ca excretion was significantly decreased by arginine supplementation. Spine BMD was significantly increased by arginine supplementation on 3 and 6 weeks after feeding. Femur BMD was significantly increased in the group of arginine supplementation on 3, 6, and 9 weeks. Rats fed the arginine-supplemented diet had better bone mineral content than did control diet rats in the experimental period. Therefore, arginine supplementation may be beneficial on spine and femur BMD increment in growing female rats. These are thought to be associated with an arginine-induced growth hormone release. The exact mechanism of this effect remains to be elucidated.

• 대한가정학회지
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• 제20권2호
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• pp.91-102
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• 1982

This study was designed to find out the nutritional defect of general Korean diet and the effective way of nutritional supplementation. Seventy weanling Sprague-Dawley male rats weighing 51.8$\pm$0.9g were blocked into ten groups and fed ten different diets ad libitum for eight weeks: Standard groups(st gp) was given 72% sugar-20% casein diet: Cereal-vegetable group(c-v gp) was fed cereal-vegetable diet(c-v diet) composed of rice, barley, soybean, spinach and cabbage: the other eight groups were fed c-v diets supplemented with casein, vitamin $B_{2}$, calcium, vitamin A, vitamin B2 and A, vitamin A and calcium, vitamin $B_{2}$ and calcium, vitamin A and $B_{2}$and calcium, respectively, on the basis of each nutrients content of standard diet. The results were as follows: 1. Food intakes and body weight gains in all the experimental groups were significantly lower than st gp. Among experimental groups, casein gp and vit B2 gp tended to gain more body weights than c-v gp. 2. Through all the experimental period, F.E.R., pp.E.R., and NDPcal% did nod show significant differences among all the experimental groups and st gp. 3. The weights of liver, kidney, and gastrocnemius were significantly lower in all the experimental groups as compared with st gp. But brain and sex organ weights did not show differences among all the groups. 4. Nitrogen contents of total carcass, liver, and gastrocnemius in all the experimental groups tended to be increased as compared with st gp, and among experimental groups, they tended to be increased by casein supplementation and decreased by ca supplementation. 5. Apparent nitrogen digestibility, urinary and fecal nitrogen excretion, the amount of nitrogen retained, and N.P.U. did not show any significant differences among all the groups. 6. Serum total protein concentrations did not show any significant differences among all the groups.

• 수산해양교육연구
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• 제27권2호
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• pp.414-421
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• 2015

This study was conducted to investigate the effects of Spirulina level in the diet on growth and skin color of red- and white-colored fancy carp Cyprinus carpio var. koi at different feeding periods. Five experimental diets (designated as Con, S5, S9, S13 and S17) were prepared to contain 0, 5, 9, 13 and 17% Spirulina. Each experimental diet was fed to two replicate groups of fish (6.6 g/fish) to visual satiation three times a day for 12 weeks. Weight gain and feed efficiency of fish were not affected by dietary Spirulina level. The values of redness ($a^*$), lightness ($L^*$) and yellowness ($b^*$) of the fish skin were influenced by dietary Spirulina level at different feeding period. The $L^*$ value of skin in the fish fed S9, S13 and S17 diets tended to decrease with feeding period. The skin $a^*$ value of the fish increased significantly with feeding period and dietary Spirulina level. The skin $a^*$ value of the fish fed the diets containing 5-17% Spirulina was higher than that of fish fed control diet at 6 and 12 weeks of feeding. The skin $a^*$ value and total carotenoids of the fish fed the S17 diet was the highest among groups. Based on the results of this study, it can be concluded that dietary inclusion of Spirulina powder could increase the skin redness of red- and white-colored fancy carp.

• Asian-Australasian Journal of Animal Sciences
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• 제20권7호
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• pp.1084-1091
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• 2007

Different levels of dietary mannanoligosaccharide (Bio-MOS, Alltech Inc.) were evaluated for their efficacy on performance and gut development of broiler chickens during a 6-week experimental period. Experimental diets contained (g MOS/kg diet) a low (0.5 g during the entire period), medium (1 g during the entire period), high (2 g during the entire period), or step down (2 g in the first week; 1 g in the second and third week; 0.5 g in the last three weeks) level of MOS. Control diets included a negative and a positive control (zinc bacitracin, ZnB, 50 ppm and 30 ppm in the first and last three weeks, respectively). MOS supplementation improved the growth performance of young birds and the effects became less when the birds got older. The growth response of birds was more obvious at the high dosage level of MOS treatment than the other MOS treatments and the growth performance of birds fed on the high MOS diet was comparable to that of birds fed on the ZnB diet. Depending on the dosage level and the age of birds, MOS seemed to reduce the size of the liver and the relative length of the small intestine but did not affect the relative weight of the other visceral organs (proventriculus, gizzard, pancreas, bursa and spleen) and that of the small intestine. A numerical increase in the small intestine digestibility of nutrients was noticed in the young birds fed on the MOS diet(s), but not in the older ones. Medium and/or high MOS treatment also increased the villus height of the small intestine of birds at different ages. Similar results were observed on the ZnB treatment. However, MOS and ZnB affected caecal VFA profile in different ways. MOS increased, or tended to increase, whereas ZnB reduced individual VFA concentrations in the caeca.