This study was performed to investigate the influence of dietary fibers from the whole foods on the serum lipid level and bowel function in rats. The fiber sources of experimental diets were prepared by drying and milling of cereal(rice bran), vegetables(Korean cabbage, radish), fruit(apple), and sea weeds(laver, sea tangle). Each of fiber sources was mixed into the diet to make the 5% level of total dietary fiber. Male rats of Sprague-Dawley strain were blocked into 8 groups : FF, CC, CE, V1, V2, ER, S1, and S2. The animals were fed ad libitum each of experimental diets for 4 weeks. Serum triglyceride level was not significantly different among groups. The laver group showed the lowest level in the serum total cholesterol. The Korean cabbage group showed the highest level in the serum HDL cholesterol. The longest transit time was observed in the fiber free group and the shortest transit time was observed in the sea tangle group. Absorption rates of calcium were especially lower in the Korean cabbage and the sea tangle groups than the other groups. Magnesium and phosphorus absorption rates were influenced by SDF(Soluble Dietary Fiber) intake and TDF(Total Dietary Fiber) intake, respectively. Mucosa weight in the small intestine showed the tendency to increase by increasing of IDF (Insoluble Dietary Fiber) intake. especially the Korean cabbage group was the heaviest. The activity of maltase in the mucosa of small intestine was the lowest in the radish group.
This study was initiated to investigate the effects of lyophilized purslane (Portulaca oleracea) powder (5% and 10%) on lipid levels in rats fed a hypercholesterolemia-inducing diet (1% cholesterol). During the four week study, there were no significant differences in either weight change or the food efficiency ratio between the group fed the hypercholesterol diet alone (HC) and the groups fed the purslane powder (HCPO-I and HCPO-II, 5% and 10% purslane, respectively). In serum, the levels of total lipid, total cholesterol and LDL-C decreased significantly for the group fed the 10% purslane powder (HCPO-II) in comparison with the group fed the 5% purslane powder (HCPO-I). The atherogenic index (AI) was reduced by about 51% for the group fed the 10% purslane powder (1.47) in comparison with the HC group (3.03). The activities of GOT, GPT, ALP and LDH decreased significantly for the groups fed the purslane powder in comparison with the HC group. Regarding liver tissue, the levels of total lipid, total cholesterol and triglyceride decreased significantly for the purslane powder-fed rats compared to the HC group. The fecal lipid profiles increased significantly as the amount of purslane powder was increased. Compared to the HC group, the fecal total cholesterol and triglyceride levels were higher in the group fed the 10% purslane powder by about 2.8 times and 2.3 times, respectively. For the serum and liver tissue, the content of lipid peroxide decreased significantly in the groups fed purslane powder compared to the HC group. The data from this experiment show an increase in the lipid levels discharged in feces, suggesting that the supplementation of purslane powder to a hypercholesterolemia-inducing diet reduces lipid levels.
An experiment was conducted to determine the effect of supplementation of insoluble dietary fiber (Vitacel®) on growth performance and nutrient digestibility in weanling pigs. A total of 96 pigs that averaged 6.49$\pm$0.52kg BW and 23$\pm$2.1d age were allocated in a randomized block design with two pigs per pen and 12 pens per treatment. Pigs and feeders were weighed 10-days interval for the 40-d trials to determine ADG, ADFI and feed:gain ratio(F:G). Pigs were fed one of four diets:1) Control diet (C) 2) C+0.3% insoluble dietary fiber(IDF) 3) C+0.6% IDF and 4) c+0.9% IDF. For the determination of fecal nutrients digestibility, pigs were fed diets(diet 2) with 1% Celite-545(Fluka) as a marker and feces were collected on $9^{th}$ day and $18^{th}$ day after feeding diet 2. During the whole experimental period, pigs fed diet with 0.3% IDF have significantly higher ADG than other dietary treatment groups(P<0.05). ADG of pigs fed diet with 0.6% IDF was higher than that of pigs fed control diet(P<0.05). However, there was no significant difference in ADG between control group and 0.9% IDF group(P>0.05). ADFI of pigs fed diet with 0.3% IDF was significantly higher than any other dietary treatment groups(P<0.05). There was no significant difference in ADFI among control group, 0.6% and 0.9% IDF supplementation groups (P>0.05). Digestibilities of organic matter, crude protein, crude fiber and energy were significantly higher in 0.3% IDF supplementation group than any other dietary groups. However, there was no difference in over all nutrient digestibilities between 0.6% and 0.9% IDF group. Feeding diets more than 0.6% IDF did not affect the rest of the nutrients digestibilities except for ADF digestibility compared to control diet. Dietary supplementation level of IDF showed a significant quadratic effect on performance improvement of piglets. This response of growth performance to IDF supplementation is, as expected, in agreement with that of nutrient digestibility. Our results showed that IDF supplementation to diet for weaned piglets might be beneficial in terms of growth and nutrient digestibility. However, there should be more study on the relationship between level of IDF supplementation and piglet response as well as the exact mode of action of IDF in weaned piglets.
Sixteen early lactating Nili-Ravi buffaloes, four animals in each group, were used in a Completely Randomized Design to evaluate the effect of varying levels of both ruminally protected fat and urea treated corncobs ensiled with or without corn steep liquor (CSL) on feed intake, digestibility and milk production and its composition. Four experimental diets were formulated. The control (C) diet was balanced to contain 0% fat and 35% urea treated corncobs ensiled with 0% CSL. The low fat (LF), medium fat (MF) and high fat (HF) diets had 45, 55 and 65% urea treated corncobs ensiled with 9% CSL and 2, 4 and 6% ruminally protected fat, respectively. Dry matter, crude protein (CP) and neutral detergent fiber (NDF) intakes by buffaloes remained similar across all treatments. However, DM and NDF as a percent of body weight and digestible DM intakes were higher in HF diet when compared to C, LF and MF diets. Digestible NDF intakes were also significantly higher in HF diet as compared to all other diets. The intakes of ADF and digestible ADF were higher in MF and HF than C and LF diets. The significant variation in digestible DM, ADF and NDF intakes may be attributed to the ammoniation of corncobs along with CSL that caused significant changes in the degradability and digestibility of the diets. Ether extract and digestible EE intakes differed significantly (p<0.05) among all treatments. Intakes of EE were the highest in animals fed HF diet, which was because of added fat. Apparent DM digestibility was the highest in animals C diet and was the lowest in those fed LF diet. Neutral detergent fiber and ADF digestibilities were higher in animals fed diets containing urea treated corncobs ensiled with 9% CSL when compared to those fed diets containing urea treated corncobs ensiled without CSL. Apparent digestibility of CP was noted highest (71.47%) in animals fed HF diet when compared to those fed MF (67.75%), LF (67.04%) and C (65.39%) diets. Milk yield (4% FCM) was the higher in buffaloes fed HF, MF and LF diets than those fed C diet. These results indicated that increasing levels both of fat and urea treated corncobs ensiled with CSL elevated the negative effects of poor quality fibrous feed on milk production by buffaloes.
The effect of ammoniation with urea and with soybean meal (SBM) as a source of urease on the nutritive value of wheat straw was evaluated in sheep. Twenty-four male Najdi lambs were used in a 3${\times}$2 factorial design, in which the animals were allocated to three straw treatments: 0% urea-treated (NT), 6% urea-treated (UT) and 2.2% urea-supplemented (US) straws. Each straw treatment was either supplemented or non-supplemented with 70 g SBM $kg^{-1}$ straw during the treatment time with urea, giving a total of six straw treatments. Each of these treatments was individually fed ad libitum to 4 lambs, together with 300 g of barley grain/head/day. Total N content of UT and US straws increased significantly (p<0.001) as compared to NT straw. The degree of urea hydrolysis, either with or without SBM addition, was nearly similar. Lambs fed either UT or US straw based diets had significantly (p<0.01) and numerically (p>0.05) higher straw DM intake (g $d^{-1}$$kg^{-1}$$BW^{0.75}$), compared to those fed NT straw based diet. Apparent DM or OM digestibilities increased significantly (p = 0.014) in lambs fed UT diet, and numerically (p>0.05) in lambs fed US diet as compared to those fed NT diet. Fiber (CF, NDF, ADF, cellulose and hemicellulose) digestibility increased to a similar magnitude, averaging 20.2 (p<0.001) and 7.8% (p<0.07); this corresponds to 35 (p<0.001) and 51% (p<0.001) in N digestibility and approximately 78 (p<0.017) and 105% (p<0.002) in N retention, for UT and US diets, respectively, as compared to NT diet. However, the UT diet had higher (p<0.01) fiber digestibility over the US diet. Addition of SBM tended to improve (p = 0.09) straw DM and digestible OM intakes, while significantly increasing (p<0.001) total and digestible CP intakes across all diets. Lambs fed on US diet had higher ruminal ammonia N than those fed on UT (p<0.05) or NT (p<0.001) diets. However, ruminal pH and molar proportion of the volatile fatty acids did not differ (p>0.05) among the treatment diets. This study suggests that US and UT treatments, particularly the latter, improved straw intake, digestibility and N utilization by lambs compared to NT treatment. On the other hand, addition of SBM as a source of urease had a negligible effect on urea hydrolysis.
Khan, M. Ajmal;Sarwar, Muhammad;Nisa, M.;Khan, M.S.;Bhatti, S.A.;Iqbal, Z.;Lee, W.S.;Lee, H.J.;Kim, H.S.;Ki, K.S.
Asian-Australasian Journal of Animal Sciences
/
v.19
no.5
/
pp.645-650
/
2006
Thirty early lactating Nili-Ravi buffaloes, six animals in each group, were used in a completely randomized design to examine the feeding value of 4% urea treated wheat straw (UTWS) ensiled with 6% or without acidified molasses. Five experimental diets were formulated. The control ration was balanced to contain 30% DM from UTWS ensiled without acidified molasses. The other four diets were formulated to have 30, 40, 50 and 60% DM from UTWS ensiled with 6% acidified molasses, respectively. Dry matter and neutral detergent fiber (NDF) intakes were higher in buffaloes fed diets containing UTWS ensiled with acidified molasses compared with those fed a diet containing UTWS ensiled without acidified molasses. Intake of DM was not significantly different in buffaloes fed diets containing varying levels of UTWS ensiled with acidified molasses. A similar trend was observed for crude protein (CP) intake. Apparent DM and NDF digestibilities were significantly higher in buffaloes fed diets containing UTWS ensiled with acidified molasses compared with those fed UTWS ensiled without acidified molasses. However, differences in DM and NDF digestibilities were non-significant across buffaloes fed diets containing varying levels of UTWS ensiled with acidified molasses. Milk yield (4% fat corrected) was significantly higher in buffaloes fed diets containing UTWS ensiled with acidified molasses than those fed a diet containing UTWS ensiled without acidified molasses. Milk yield was similar in buffaloes fed varying level of UTWS ensiled with acidified molasses. Milk CP, true protein, solid-not-fat and total solids were similar in buffaloes fed UTWS ensiled with or without acidified molasses. The UTWS ensiled with 6% acidified molasses can be included at up to 60% DM of lactating buffalo rations without any ill effect on productivity.
Journal of the Korean Society of Food Science and Nutrition
/
v.27
no.2
/
pp.296-304
/
1998
The effects of common Korean dietary fiber-rich foods(dried sea mustard, Lentinus edodes and Korean radish leaves) on total gut transit time of diet, serum cholesterol level and mineral apparent absorption ration and tissue level were investigated. Twenty eight male were divided into 4 groups and were fed a control diet(containing 2% cellulose) and three fiber supplementary diet mixed with 10% of the above dietary fiber rich foods for 4 weeks, respectively. Body weight gain and food efficiency ration were not affected by the supplementary diet of fiber but the total gut transit time of diet was shortened in all dietary fiber groups. The Lentinus edodes reduced significantly serum total cholesterol and increased the HDL-cholesterol/total cholesterol ratio at 4th week without and effect on calcium and iron apparent absorptions and tissue levels of the minerals. Radish leaves decreased significantly iron apparent absorption ration with a tendency to increase iron retention in spleen and did not alter serum cholesterol level. Serum cholesterol concentration and calcium and iron apparent absorptions were not significantly altered by the ingestion of sea mustard, while it had more soluble dietary fiber than mushroom and radish leaves.
Kim, Mi-Suk;Moon, Yoon-Hee;Lim, Sabina;Kim, Dae-Jin
Journal of Life Science
/
v.7
no.4
/
pp.329-335
/
1997
This study was conducted to investigate the effect of dietary fiber(DF) levels on the meat quality in colored broiler. Colored broiler were fed on containing corn-soy basal diet(DF 5%) and high level(DF 6,7 and 8%) of dietary fiber diets for 7 weeks. Dietary fiber level of diet was make up by adding some alffalfa meal. Colored broiler meats were stored at 3$\circ$ for 24hr after skaughter, and used to analyze physico-chemical properties. Proximate component, pH, shear force value, myofibril fragmentation index, water holding capacity, cooking loss, protein extractability, fatty acid composition, Hunter's L, a value and palatability of cooked meat were not significantly affected by dietary fiber levels, whereas the Hunter's value of meat was significantly affected bty dietary fiber levels for the final period of feeding. Crude protein content, myofibril fragmentation index, water holding capacity, protein extractability and Hunter's b value of breast meat's were higher than thigh meat's, but crude fat content, pH, shear force value, cooking loss, palmitoleic acid, linolenic acid, and Hunter's a value were lower, regardless of dietary fiber level.
Dietary pattern has paramount importance in shaping the gut microbiota and its associated host health. Herein this study, long term (12 weeks) impact of mushroom derived dietary fiber, ${\beta}-glucan$, is investigated for its effect on low fiber diet consumption. Inclusion of dietary fiber into the low fiber diet (LFD) increased the abundance of genera Lactobacillus and Anaerostipes, the microbes responsible for butyrate (major 'fuel source' of colonocytes) production. Mice fed LFD with ${\beta}-glucan$ showed significant increase in the length of small intestine compared to that of the LFD group without ${\beta}-glucan$. Further, dietary fiber consumption enhanced goblet cell density along with mucosal layer thickness. These results indicate promising effects of ${\beta}-glucan$ towards maintenance of healthy gut and gut microbiota.
Kim, Ki Hyun;Kim, Kwang Sik;Kim, Jo Eun;Jung, Hyun Jung;Lee, Sung Dae;Sa, Soo Jin;Hong, Joon Ki;Park, Jun Cheol;Kim, Young Hwa
Reproductive and Developmental Biology
/
v.37
no.3
/
pp.117-122
/
2013
The aim of this study was to investigate the effects of dietary supplementation of pelleted-Italian Ryegrass (IRG) as a source of fiber on reproduction performance in pregnant sows. A total of 24 pregnant sows were randomly assigned to four dietary treatments, which was given a corn-soybean diet with 0%, 10%, 20%, and 30% pelleted-IRG from 105 days prepartum to 7 days postpartum. During experimental period, the sows fed the IRG supplemented diet showed the lower feed intake than the sows fed the control diet (p<0.05). The changes of body weight in sows from initial to pre- and/or post-partum was significantly smaller in sows fed the IRG supplemented diet than control group. It is thought that the lower weight gain in IRG supplemented groups is caused by low feed intake. Although there was no significant difference, sows fed the IRG supplemented diet tended to increase the litter size and birth weight in piglets compared with sows fed the control diet. This result suggests that the dietary supplementation of IRG has the positive effects to improve the reproductive performance in sows. But, the excessive feeding of IRG to sows might cause to retard the days of return to estrus, and decrease the contents of solid, milk protein, and milk fat in colostrum. Thus, the addition of about 10% IRG is desirable to increase the reproductive performance. Meanwhile, the feeding energy diet is better effective than feeding the fiber diets to improve overall productivity in sows after postpartum.
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