• Title/Summary/Keyword: Diet Composition

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Growth of Sex Reversed Nile Tilapia, Oreochromis niloticus In a Closed Recirculating Culture System

  • Yoon Gil Ha;Jo Jae-Yoon;Kim Youhee;Kim In-Bae
    • Fisheries and Aquatic Sciences
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    • v.5 no.1
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    • pp.59-63
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    • 2002
  • Swim up fry of the Nile tilapia, Oreochromis niloticus, were fed 0 or 60 mg l7-methyltestos­terone (MT) per kg feed for 30 days. Fish that had been fed 0 or 60 ppm MT for the first 30 days were subsequently fed a commercial diet for 56 weeks to evaluate growth, survival, sex ratio, body composition, gonadosomatic index and the total edible portion. Mean body weight of MT treated group and untreated group were 1.7 g and 1.1 g, respectively at the end of the treatment for 30 days $(P<0.05)$. The experiment was terminated after a total of 60 weeks, the mean body weight of the MT treated population was 1,016 g and that of the untreated population was 762g $(P<0.05)$. However, the final mean body weight of untreated males (l, 086g) was not significantly different from treated males (l,016 g), but the mean body weight of the female group was 512 g. Therefore, the reason for the lower mean body weight of the untreated group was entirely due to stunted females. The percentage fillet yield of MT treated fish$(34.6\%)$ was not significantly different from that of the untreated males $(34.4\%)$, but the untreated females were lower than those of both treated and untreated male groups $(32.4\%)$ (P<0.05). There were no significant differences in the percentage of the all edible portion (AP) between MT treated and untreated males, but females were lower than males. Females are smaller fish in size and the gonads are larger in proportion which were discarded along with the intestine this explains the observed difference. Total biomass of the two groups were 134.8kg and 104.5kg per $m^3$, respectively. The proportion of fish reaching a marketable size of over 800 g in body weight within 14 months were $78\%$ in the MT treated group and $41\%$ in the untreated group.

Evidence Based Approach of Wheel Balance Cancer Therapy: A Review (수레바퀴 암 치료법에 대한 근거중심적 연구)

  • Zheng, Hongmei;Yoon, Jeungwon;Yoo, Hwa-Seung;Cho, Chong-Kwan
    • Journal of Korean Traditional Oncology
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    • v.17 no.2
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    • pp.1-16
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    • 2012
  • Background : Integrative cancer treatment is a holistic approach embracing body, mind, and spirit incorporating conventional treatments of surgery, chemotherapy, radiation and personalized complementary treatments. Wheel Balance Therapy (WBT) of East-West Cancer Center(EWCC), Dunsan Oriental Hospital of Daejeon University was developed to balance out all factors involved in cancer care based on the traditional theories of oriental medicine. Objective : This work aims to analytically review literatures on WBT and its related components. Methods : Literatures published from January 1st, 1990 to April 30th, 2011 were reviewed focusing on 4 main components of WBT; herbal medicine, immune activation, anti-cancer diet, and breathing/meditation. Data were retrieved from medical search engines and electronic data bases including Pubmed, Research Information sharing Service (RISS), Korean-studies Information Service System (KISS), China National Knowledge Infrastructure (CNKI), and Korea's National Digital Library (KNDL). Results : In this review, EWCC's most commonly prescribed formulas are explored. The composition of the formulas, their use in clinical settings as well as the background studies and other therapeutic efficacies are explained. Information on incorporating anti-cancer dietary support and breathing and meditation techniques, other therapies practiced as part of the center's integrative cancer care are also covered. Conclusion : WBT based on holistic theories of oriental medicine embracing body, mind, and spirit is expected to further contribute in promotion of cancer patients' quality of life and prolonged survival time.

Effects of Method and Time of Castration on Growth and Carcass Characteristics of Omani Sheep

  • Mahgoub, O.;Horton, G.M.J.;Olvey, F.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.11 no.2
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    • pp.121-127
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    • 1998
  • Thirty two Omani sheep with eight animals each of; intact males (INT), males castrated with rubber rings immediately after birth (RR), males castrated with a burdizzo at 8 weeks of age (BC) and intact females (IF) were fed ad libitum a concentrate diet (CP 16%) plus chopped Rhodesgrass hay (8% CP) from weaning until slaughter at 28 kg. INT lambs grew faster from 9 to 20 weeks of age (p < 0.05) thus they were significantly heavier at 20 weeks of age than BC and IF, but not RR lambs. INT consumed more total feed than other sex groups over the period from 9 to 20 weeks of age. There were no significant differences between lambs of all experimental groups in feed per gain ratio. INT lambs had lower (p < 0.01) dressing percentage (DP) than RR, BC and IF. As a percentage in the empty body weight (EBW), INT had higher proportions of head, feet, empty gut (p < 0.001), liver (p < 0.05) and genitals (p < 0.05) but lower proportions of lungs and trachea (p < 0.05) than BC and IF lambs. INT males had a significantly higher (p < 0.05) proportion of bone than RR and IF lambs but lower (p < 0.05) proportion of fat than RR and IF. As a percentage in EBW, IF had the highest protortion (p < 0.001) of total body fat (TBF) followed by BC and RR whereas INT males had the lowest proportion. There was a general trend of IF having the highest proportion of individual and total non-carcass fat (TNCF) and total carcass fat (TCF) followed by BC and RR lambs whereas INT lambs had the lowest protortions of individual carcass and non-carcass fat depots. There were only few sex or castration effects on carcass tissue distribution. IF had higher proportions of intermuscular fat in the chuck, plate, leg and flank than INT and BC. The current study demonstrated that castration of intensively-raised male Omani native sheep especially at weaning using a burdizzo retarded growth rate and reduced carcass quality by increasing fat content.

The Use of Lupins in Feeding Systems - Review -

  • Petterson, D.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.6
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    • pp.861-882
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    • 2000
  • The seed, or grain, of modern cultivars of Lupinus angustifolius, commonly known as Australian sweet lupins (ASL), is an established feed resource for the intensive animal industries of Australia, Japan, Korea and several other countries in Asia and Europe. Since the introduction of ASL to the world marketplace about 25 years ago, researchers in many countries have found them to be a valuable component of the diet of beef and dairy cattle, sheep, pigs, poultry, finfish and crustaceans. The seed of ASL contains ~32% crude protein (CP) (~35% DM basis) and 5% oil. The main storage carbohydrates in the seed are the ${\beta}$-galactans that comprise most of the cell-wall material of the kernel and the cellulose and hemicellulose of the thick seed coats. ASL seeds contain about 40% non-starch polysaccharides (NSP) and a negligible amount of starch. This makes them an excellent ingredient for ruminant diets, as the risk of acidosis is very low. The seed of modern cultivars of domesticated Lupinus species contain negligible amounts of lectins and trypsin inhibitors so they do not require preheating before being used as an ingredient in feeds for monogastric species. They have a high digestibility coefficient for protein, >90% for most species, but a low energy digestibility, ~60%, which is mostly due to the high content of NSP. The low content of methionine (0.22%) and of lysine (1.46%) is typical of the legumes. The lysine availability for pigs is >70%. Lupin kernels contain ~39% CP (~42% DM basis), 6% oil and 30% NSP. They have a higher digestible energy for pigs and finfish and a higher metabolisable energy for poultry than whole seed. Commercial operations rarely achieve complete separation of kernel from hull and it is more likely that the kernel fraction, called splits or meats, will contain ~36% CP. The replacement of soybean meal or peas with ASL in cereal-based diets for most intensively reared animals, birds and fish is possible provided lysine, methionine and digestible energy levels are kept constant. This makes ASL economically competitive in many, but not all, circumstances.

Shrimp By-product Feeding and Growth Performance of Growing Pigs Kept on Small Holdings in Central Vietnam

  • Nguyen, Linh Q.;Everts, Henk;Beynen, Anton C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.7
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    • pp.1025-1029
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    • 2003
  • The effect studied was that of the feeding of shrimp by-product meal, as a source of eicosapentaenoic and docosahexaenoic acid, on growth performance and fatty acid composition of adipose tissue in growing pigs kept on small holdings in Central Vietnam. Shrimp by-product meal was exchanged with ruminant meal so that the diets contained either 0, 10 or 20% shrimp byproduct meal in the dry matter. The diets were fed on 6 different small-holder farms. The farmers fed a base diet according to their personal choice, but were instructed as to the use of shrimp by-product and ruminant meal. The diets were fed to the pigs from 70 to 126 days of age. There were three animals per treatment group per farm. The diets without and with 20% shrimp by-product meal on average contained 0.01 and 0.14 g docosahexaenoic acid/MJ of metabolisable energy (ME). Due to the higher contents of ash and crude fiber, the shrimp by-product meal containing diets had lower energy densities than the control diets. Eicosapentaenoic acid was not detectable in adipose tissue; the content of docosahexaenoic acid was generally increased after consumption of shrimp by-product meal. In spite of the concurrent high intakes of ash and crude fiber, the feeding of shrimp by-product meal had a general stimulatory effect on growth performance of the growing pigs. The intake of docosahexaenoic acid or its content in adipose tissue was not related with average daily gain. It is suggested that shrimp by-product meal may contain an unknown growth enhancing factor.

Effects on Performance of Sulla and/or Maize Silages Supplements for Grazing Dairy Cows

  • Chaves, Alexandre V.;Woodward, S.L.;Waghorn, G.C.;Brookes, I.M.;Burke, J.L.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.9
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    • pp.1271-1282
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    • 2006
  • The objective of this study was to investigate the effects of either maize or sulla silage supplementation to grazing dairy cows in summer. Forage mixtures used in the four week trial were based on previous experimental results but inclusion of rumen fistulated cows in five treatments enabled rumen sampling and use of in sacco incubations to determine the diet effects on digestion kinetics. Sulla and maize silages were used to supplement pasture and to meet minimum requirements for dietary protein concentration. Five groups of ten cows were grazed on a restricted daily allowance of 18 kg dry matter (DM) pasture/cow to simulate a summer pasture deficit, and four of these five groups received an additional 6 kg DM $cow^{-1}d^{-1}$ of silage (sulla, maize, or sulla and maize silages). A sixth group was given a relatively unrestricted (38 kg DM $cow^{-1}d^{-1}$) pasture allowance. The silage mixtures and pasture were incubated in sacco during the final week of the trial. The pasture was of high nutritive value and not typical of usual summer conditions, which favoured a response to quantity rather than quality of silage supplements. There was no difference in cow performance with the four silage supplements and the low milk solids (MS) production (about 1.0 kg $MS\;d^{-1}$) relative to full pasture (1.3 kg $MS\;d^{-1}$) showed the principal limitation to performance was dry matter intake. Milk composition was not affected by silage type and the low level of pasture substitution (0.29) suggested metabolizable energy (ME) was the principal limitation to performance. Samples of rumen liquor and in sacco data demonstrated significant effects of supplement; DM degradation rates (k) was highest ($0.084h^{-1}$) when cows were fed 6 kg sulla silage whereas diets with a high proportion of maize silage were slowly degraded (p<0.01).

A Review of Interactions between Dietary Fiber and the Gastrointestinal Microbiota and Their Consequences on Intestinal Phosphorus Metabolism in Growing Pigs

  • Metzler, B.U.;Mosenthin, R.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.4
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    • pp.603-615
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    • 2008
  • Dietary fiber is an inevitable component in pig diets. In non-ruminants, it may influence many physiological processes in the gastrointestinal tract (GIT) such as transit time as well as nutrient digestion and absorption. Moreover, dietary fiber is also the main substrate of intestinal bacteria. The bacterial community structure is largely susceptible to changes in the fiber content of a pig's diet. Indeed, bacterial composition in the lower GIT will adapt to the supply of high levels of dietary fiber by increased growth of bacteria with cellulolytic, pectinolytic and hemicellulolytic activities such as Ruminococcus spp., Bacteroides spp. and Clostridium spp. Furthermore, there is growing evidence for growth promotion of beneficial bacteria, such as lactobacilli and bifidobacteria, by certain types of dietary fiber in the small intestine of pigs. Studies in rats have shown that both phosphorus (P) and calcium (Ca) play an important role in the fermentative activity and growth of the intestinal microbiota. This can be attributed to the significance of P for the bacterial cell metabolism and to the buffering functions of Ca-phosphate in intestinal digesta. Moreover, under P deficient conditions, ruminal NDF degradation as well as VFA and bacterial ATP production are reduced. Similar studies in pigs are scarce but there is some evidence that dietary fiber may influence the ileal and fecal P digestibility as well as P disappearance in the large intestine, probably due to microbial P requirement for fermentation. On the other hand, fermentation of dietary fiber may improve the availability of minerals such as P and Ca which can be subsequently absorbed and/or utilized by the microbiota of the pig's large intestine.

Influence of Corn Steep Liquor on Feeding Value of Urea Treated Wheat Straw in Buffaloes Fed at Restricted Diets

  • Mahr-un-Nisa, Mahr-un-Nisa;Khan, M. Ajmal;Sarwar, M.;Lee, W.S.;Lee, H.J.;Ki, K.S.;Ahn, B.S.;Kim, H.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.11
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    • pp.1610-1616
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    • 2006
  • Influence of different levels of corn steep liquor (CSL) on chemical composition of urea treated wheat straw (UTWS), ruminal characteristics, digestion kinetics, nitrogen (N) utilization, and nutrient digestibility by ruminally-cannulated buffalo bulls was studied in a $4{\times}4$ Latin Square Design. The CSL was used to ensile 5% UTWS at the rate of 0, 3, 6, and 9% on a dry matter (DM) basis. Total N and neutral detergent fibre (NDF) were increased with increasing level of CSL. Increased NDF content was attributable to increased neutral detergent insoluble nitrogen. Four diets were formulated to contain 20% concentrate and 80% UTWS ensiled with 0, (control), 3 (CSL3), 6 (CSL6), and 9% CSL (CSL9). All diets were mixed daily and fed at 1.5% of body weight twice daily. Ruminal NH3 concentration decreased with level of CSL used to ensile UTWS at 3 and 6 h post prandial, however, at 9 h post parandial it was similar across all diets and at 12 h post prandial was higher with diets containing UTWS ensiled with CSL. Concentrations of total ruminal volatile fatty acid and acetate were increased with the CSL level used to ensile UTWS. Increased rate of disappearance and reduction in lag time of DM and NDF was recorded with diets containing UTWS ensiled with CSL. Dry matter and NDF digestibilities were higher with CSL diets than on the control diet. Buffalo bulls retained more N with diets containing UTWS ensiled with CSL. The present results indicated that UTWS could be ensiled with CSL to improve its nutritive value and N utilization by ruminants.

Effects of alfalfa flavonoids extract on the microbial flora of dairy cow rumen

  • Zhan, Jinshun;Liu, Mingmei;Wu, Caixia;Su, Xiaoshuang;Zhan, Kang;Zhao, Guo qi
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.9
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    • pp.1261-1269
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    • 2017
  • Objective: The effect of flavonoids from alfalfa on the microbial flora was determined using molecular techniques of 16S ribosome deoxyribonucleic acid (rDNA) analysis. Methods: Four primiparous Holstein heifers fitted with ruminal cannulas were used in a $4{\times}4$ Latin square design and fed a total mixed ration to which alfalfa flavonoids extract (AFE) was added at the rates of 0 (A, control), 20 (B), 60 (C), or 100 (D) mg per kg of heifer BW. Results: The number of operational taxonomic units in heifers given higher levels of flavonoid extract (C and D) was higher than for the two other treatments. The Shannon, Ace, and Chao indices for treatment C were significantly higher than for the other treatments (p<0.05). The number of phyla and genera increased linearly with increasing dietary supplementation of AFE (p<0.05). The principal co-ordinates analysis plot showed substantial differences in the microbial flora for the four treatments. The microbial flora in treatment A was similar to that in B, C, and D were similar by the weighted analysis. The richness of Tenericutes at the phylum level tended to increase with increasing AFE (p = 0.10). The proportion of Euryarchaeota at the phylum level increased linearly, whereas the proportion of Fusobacteria decreased linearly with increasing AFE supplementation (p = 0.04). The percentage of Mogibacterium, Pyramidobacter, and Asteroleplasma at the genus level decreased linearly with increasing AFE (p<0.05). The abundance of Spirochaeta, Succinivibrio, and Suttonella at the genus level tended to decrease linearly with increasing AFE (0.05

An Analysis of Food Purchase Accessibility and Availability for Rural Households : The Cases of Bibong-myeon and Maesong-myeon, Hwaseong-si (농촌지역 가구의 식료품 구매 접근성과 이용가능성 분석 - 화성시 비봉면과 매송면을 중심으로 -)

  • Lee, Chang-Hyun;Lee, Sang-Eun;Jang, Mi-Jin;Choe, Jeong-Sook;Park, Young-Hee;Kim, Young
    • The Korean Journal of Community Living Science
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    • v.25 no.4
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    • pp.581-600
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    • 2014
  • This study examines the relationship between food purchase accessibility for 86 homemakers and that for 42 grocery stores. The Study area included Bibong-myeon and Maesong-myeon, Hwaseong-si, Gyeonggi-do, to represent a rural area. The analysis classified three regions (residence, outside of residence, and other areas) and seven types of grocery stores (LDS, CS, NCS, CC, NCC, TM, and other). The expansion of the area range increased the availability of food items and the accessibility of large-scale grocery stores as well as those for food procurement. The respondents had difficulty preparing family meals and buying food items because of a lack of food item variety and the small scale of grocery stores. In particular, fresh meat, fruits, and fish were difficult to purchase, causing some nutritional imbalance. These results suggest a need to develop meal composition samples and programs that can actively encourage the intake of meat and fish products with a diet based in self-produced vegetables for better dietary behaviors.