• 한국지역사회생활과학회지
• /
• 제14권3호
• /
• pp.75-87
• /
• 2003

This study was conducted to find the number of meals skipped and the types of main meals consumed by people in Miryang and Daegu. The subjects consisted of elementary school students(ES), middle school students(MS), high school students(HS), college students(CS) and adults, divided into below the age of 40(AU) and above the age of 40(AA). Data were collected through a 7-day dietary record from 941 subjects. The definition of rice-based meal(RM) and wheat-based meal(WM) depends on the type of grain eaten in the main dish, rice or wheat flour, respectively, regardless of the menu. Out of all the meals consumed by the subjects during 7 days before the survey, 71.5% of the meals consumed were RM, 13.1 ％ of the meals consumed was WM and 12.5% of the meals was skipped. Of the meals skipped, breakfast-skipping was the highest with 27.1%. There's no difference by region and sex. But there were several differences by age. The rates of skipped meal were high for CS, AU, HS, and MS in order. Especially the breakfast-skipping for CS was highest as 47.9%. In the types of main meal, the rates of RM was highest at breakfast and lowest at lunch. The rates of RM was higher in Miryang than Daegu, and there was no difference by sex. The rates of RM was high for AA, HS, ES and AU in order. ES and HS, who had highest rates of WM, had the highest WM consumption at lunch. It is because of school food service at lunch. Since the younger population consumed more RM compared to the older population, it can be speculated that more WM will be consumed in the future. Also efforts need to be made to discourage skipping meals.

• 한국수산과학회지
• /
• 제43권4호
• /
• pp.325-330
• /
• 2010

The apparent digestibility coefficients of dry matter, crude protein and energy in white fishmeal, herring meal, anchovy meal, salmon meal, sardine meal, mackerel meal, squid meal, soybean meal, corn gluten meal and wheat flour were determined for olive flounder. Digestibility coefficients were determined using a reference diet and test diets that contained 70% of the reference diet mixture and 30% test ingredients. All diets contained 0.5% chromic oxide as a digestibility indicator. The fish averaging 220 g were held in 500 L tanks at a density of 20 fish per tank. Feces were collected from three replicated groups of fish using a fecal collection column attached to a fish-rearing tank. The apparent dry matter, crude protein and energy digestibility coefficient values observed were in the ranges 29-79%, 59-95% and 45-91%, respectively, for various test ingredients. The apparent dry matter, crude protein and energy digestibility of white fishmeal, herring meal, anchovy meal, salmon meal, sardine meal, mackerel meal and squid meal were significantly higher than those of soybean meal, corn gluten meal and wheat flour.

• Fisheries and Aquatic Sciences
• /
• 제5권3호
• /
• pp.172-177
• /
• 2002

This study was conducted to investigate the utilization of Sargassum meal in the diet on juvenile ayu (Plecoglossus altivelis) reared in seawater. White fish meal and wheat flour were used as the dietary protein and carbohydrate sources in the control diet. Wheat flour in the control diet was replaced with $5\%$ and $10\%$ Sargassum meal. Three replicate groups of fish average weighing 4.0 g were fed one of three isonitrogenous$(45\%)$ and isocaloric (14.5 MJ /kg diet) diets for 7 weeks. Survival of all groups were above $80\%$. Weight gain, feed efficiency and protein efficiency ratio were not significantly affected by dietary Sargassum meal levels (P>0.05). There were no significant differences (P>0.05) in moisture, crude protein, crude lipid, crude ash and fatty acid compositions of whole-body fish among groups. It is concluded that Sargassum meal could be used as a dietary additive or alternative low-cost dietary ingredient up to $10\%$ for juvenile ayu reared in seawater.

• 한국수산과학회지
• /
• 제44권3호
• /
• pp.232-236
• /
• 2011

A feeding trial was carried out to investigate the effect of different fish meal and wheat flour contents in extruded pellets on the growth and apparent nutrient digestibility of olive flounder Paralichthys olivaceus. Four extruded pellets (HB1, HB1T, HB2 and HB2T) were prepared using two kinds of high quality brown fish meal and low quality tuna fish meal. Two diets (HB1 and HB2) contained two different kinds of brown fish meal, respectively; in HB1T and HB2T, we substituted 50 % of the brown fish meal with 10 % wheat flour. Three replicate groups of fish (initial body weight of 82 g) were fed the experimental pellets to visual satiation for 15 weeks. The highest weight gain was observed in fish fed HB1, and weight gain of fish fed HB2 was significantly higher than that of fish fed HB2T (P<0.05). Feeding efficiency for fish fed HB1 was significantly higher than that of fish fed HB1T and HB2T (P<0.05), but was not significantly different from fish fed HB2. Apparent dry matter digestibility in HB1 and HB2 was significantly higher than in HB1T and HB2T (P<0.05). The highest crude protein digestibility was observed in HB1, and protein digestibility in HB1T and HB2 was higher than in HB2T (P<0.05). The results of this study suggest that fish meal quality considerably affects growth and nutrient digestibility of olive flounder fed extruded pellets, and the use of HB1 is recommended over HB1T, HB2 and HB2T for efficient olive flounder production.

• Animal Bioscience
• /
• 제34권8호
• /
• pp.1365-1374
• /
• 2021

Objective: This study was conducted to investigate the synergistic effect of exogenous multienzyme and phytase on growth performance, nutrients digestibility, blood metabolites, intestinal microflora, and morphology in broilers fed corn-wheat-soybean meal diets. Methods: A 2×2 factorial design was used in this study. Four dietary treatments consisted of i) basal diets (corn-wheat-soybean meal based diets without multi-enzyme and phytase), ii) basal diets with phytase (0.05%), iii) basal diets with exogenous multi-enzyme (0.05%), and iv) basal diets with exogenous multi-enzyme including phytase (0.05%). A total of 480 broiler chickens (Ross 308 - one day old) were weighed and allotted to thirty-two cages (15 birds per cage), and chicks were randomly allocated to four dietary treatments. Results: The body weight gain and feed conversion rate were improved by supplementation of exogenous multi-enzyme containing phytase during the finisher period (p<0.05). The birds fed diets with exogenous multi-enzyme containing phytase had a significantly greater digestibility of dry matter, gross energy, crude protein, calcium, and phosphorus compared with birds fed non-supplemented diets (p<0.05). The chickens fed diets with exogenous multi-enzyme containing phytase showed a higher concentration of Ca and P in the serum (p<0.05). The population of Lactobacillus spp., Escherichia coli, and Clostridium were not affected in the ileum and cecum of chickens fed enzyme-supplemented diets. The dietary supplemental exogenous multi-enzyme containing phytase showed a significant improvement in villus height, crypt depth, and villus height and crypt depth ratio, compared to basal diets or dietary supplemental phytase (p<0.05). Conclusion: The supplementation of the exogenous multi-enzyme containing phytase synergistically improved the growth performance, nutrients digestibility, and villus height of the small intestine of broiler chickens fed a corn-wheat-soybean meal based diets.

• KSBB Journal
• /
• 제13권6호
• /
• pp.644-648
• /
• 1998

In the production of a low cost bacterial insecticide, it is important to produce a high spore concentration using low price substrates. Experiments were carried out to investigate the effects of the addition of mineral salts and glucose, and of dissolved oxygen concentration on the cell growth and spore formation of Bacillus thuringiensis var aizawai using a cheap wheat and soybean meal in the batch culture. The maximum viable cell number was 1.2${\times}$109 CFU/mL at 12 hr culture and spore yield was 54.2% at 74 hr culture using an industrial medium containing 20 g/L wheat meal and 30 g/L soybean meal under 1.0 vvm aeration and 200 rpm agitation. The cell growth and the spore formation were not enhanced by the addition of mineral salts in industrial medium, whereas th addition of 10g/L glucose decreased the cell growth and spore formation. We could obtain a maximum viable cell number of 2.2${\times}$109 CFU/mL and spore number of 1.9${\times}$109 CFU/mL at the dissolved oxygen concentration of 60% of saturation. The spore concentration was enhanced approximately by 2 times as compared to the dissolved oxygen concentration of 50%. In the bench-scale culture, the maximum viable cell and spore number were 2.5${\times}$109 CFU/mL, and 2.2${\times}$109 CFU/mL, respectively under 1.0 vvm aeration and 400 rpm agitation. The spore yield was 88% based on the maximum viable cell number. As a result, it was confirmed that the production of high spore concentration could be obtained by a bench-scale culture using an industrial medium.

• Asian-Australasian Journal of Animal Sciences
• /
• 제19권5호
• /
• pp.638-644
• /
• 2006

Sixteen adult male buffaloes (average body weight $443{\pm}14kg$) were equally distributed into four groups in an experiment to study the effect of supplementary protein sources on energy utilization efficiency in buffaloes fed a wheat straw-based diet. The animals in the control group were offered a basal diet composed of 700 g deoiled ground nut cake and ad libitum wheat straw. Animals of other groups were offered 1.8 kg of soyabean meal (SBM), linseed meal (LSM) or mustard cake (MC) along with the basal diet. Protein supplementation increased the digestibility of DM (p<0.01), OM (p<0.01) CP (p<0.01) and CF (p<0.05). Maximum CP digestibility was observed on SBM, followed by LSM and MC when compared to the control. Total DMI and DOMI was significantly (p<0.01) higher in protein supplemented groups with no differences between treatment groups. Digestible crude protein (DCP) intake and N balance were significantly (p<0.01) different between the groups; maximum response was obtained with SBM supplementation, followed by LSM and MC. Faecal energy was significantly (p<0.01) lower in SBM and LSM groups in comparison to other groups. Methane production (% DEI) was significantly (p<0.05) lower on the SBM treatment. Metabolizable energy (ME) intake increased significantly due to protein supplementation. Metabolizable energy intake (MEI) of animals in the MC group was less than LSM and SBM. Energy balance was increased significantly (p<0.01) due to protein supplementation and within supplement variation was also significant with maximum balance in SBM followed by LSM and MC groups. Protein supplementation significantly (p<0.05) increased the digestibility and metabolizability of energy from whole ration. Metabolizable energy (ME) content (Mcal/kg DM) of SBM, LSM and MC was 4.49, 3.56 and 2.56, respectively. It was concluded that protein supplementation of wheat straw increased intake, digestibility and metabolizability of energy and maximum response could be obtained when soybean meal was used as a supplement.

• 한국가금학회지
• /
• 제19권3호
• /
• pp.125-136
• /
• 1992

본 연구는 alfalfa meal의 첨가가 산란계의 생산성, 난황 착색도, 난황 cholesterol 함량 등에 미치는 영향을 규명하기 위하여 실시하였다. alfalfa meal을 밀기울와 대체하여 0, 3.5, 7% 첨가하는 3개 처리에 총192수의 갈색 산란계를 공식하였고, 공시계는 완전임의 배치하여 철제 cage에서 사육하였으며 1991년 7월23일부터 10월 7일까지 10주간에 걸쳐 시험을 진행하였다. 본 시험의 결과를 요약하면 다음과 같다. 1. 전 기간을 통해 산란율은 alfalfa meal 3.5% 첨가구에서 가장 높았으나 통계적인 유의차는 없었다. 2. 난중은 alfalfa meal 3.5, 7% 첨가구가 대조구에 비하여 유의하게 증가하였다(P<0.01). 3. 통계적인 유의차는 인정되지 않았으나 일산란양은 alfalfa meal 3.5% 첨가구에서 가장 높았다. 4. 1일 사료 섭취양은 alfalfa meal 3.5% 첨가시 가장 많았으나 사료 요구율은 가장 낮았다. 5. 산란 kg당 사료비는 alfalfa meal 3.5% 첨가구가 유의하게 타구에 비해 낮았다(P<0.05). 6. 난질 및 난각질에 있어서 난각후도와 난각중은 alfalfa meal의 첨가 수준이 증가함에 따라 증가하였으나 통계적인 유의차는 인정되지 않았다. 7. 난황 착색도는 alfalfa meal의 첨가량이 증가할 때 유의적으로 증가하였다(P<0.01). 8. 통계적인 유의차는 없었으나 난황 cholesterol 함양은 밀기울만을 급여한 구와 비교해서 alfalfa meal을 3.5%, 7% 급여한 구에서 감소하는 경향을 보였다.

• Nutritional Sciences
• /
• 제2권2호
• /
• pp.76-81
• /
• 1999

Sodium restricted diets are known to lower blood pressure in salt sensitive, hypertensive patients. Thare is increasing evidence that potassium plays an important role as a protective factor in the regulation of blood pressure. The objective of the current study was to measure parameters of sodium, potassium, and chloride utilization as affected by feeding of substantial quantities of bread made from whole ground white torn meal, whole ground yellow corn meal, and whole ground wheat flour. The breads provided 40 percent of a caloric content of the constant, measured laboratory diet. The 28-day study was divided into an introductory period of 7-days and three experimental periods of 7-days each. Order of assignment to specific treatments for 12 healthy subjects were according to a complete randomized block design. Yellow corn bread diets resulted in the highest potassium retention (243 mg/day) and the lowest urinary sodium and potassium ratio (1.53 $\pm$ 0.26) numerically in comparison to the other test breads. The excretions of sodium and chloride were higher during controlled feeding periods than during the self-selected diet period(p < 0.05). This indicates a response to the higher intake of these electrolytes from the experimental diets than from self-selected diets. There was no significant difference in the effect of white corn bread, yellow corn bread, or whole wheat bread diet on electrolyte status in humans. However, the yellow corn bread diet resulted in a somewhat more favorable urina교 sodium to potassium ratio than that from white corn bread or whole wheat bread diet.

• 한국수산과학회지
• /
• 제36권5호
• /
• pp.454-457
• /
• 2003

A feeding trial was carried out to investigate the utilization of dietary soybean meal and wheat flour as substitutes for fish meal and alginate in different dietary types (powder, pellet and flake) for juvenile snail (Semisulcospira gottschei). After 10 weeks feeding trial, survival was not affected by formulation and type of diets (P>0.05), but weight gain was significantly affected by dietary formulation (P<0.001) and type (P<0.05). In the same dietary formulation, weight gain of the snail fed the flake type of diets was lower than that of the snail fed the powder or pellet types. However, the type of diet did not affect weight gain when snail fed diets containing $37\%$ soybean meal and $18\%$ alginate. The weight gain was lower in the snail fed diets containing $25\%$ fish meal compared with that of the snail for diets containing $33-37\%$ soybean meal at the same dietary type. When soybean meal was used as main protein source in diets, weight gain was not affected by dietary alginate $(0\;and\;18\%)$ and wheat flour $(36\;and\;58\%)$ contents. Crude protein and ash contents of whole body of the snail was not affected either by formulation or by type of diet. Moisture and crude lipid contents of the whole body were significantly affected by dietary formulation, but not by the type. These results indicate that $25\%$ fish meal could be replaced by $37\%$ soybean meal as dietary protein source, and pellet and powder could be desirable dietary type for the optimum growth of the snail.