• Title/Summary/Keyword: CF

Search Result 2,415, Processing Time 0.036 seconds

Determination and Prediction of the Amino Acid Digestibility of Sunflower Seed Meals in Growing Pigs

  • Liu, J.D.;Li, Q.Y.;Zeng, Z.K.;Li, P.;Xu, X.;Wang, H.L.;Zhang, S.;Piao, X.S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.28 no.1
    • /
    • pp.86-94
    • /
    • 2015
  • This experiment was conducted to evaluate the chemical composition and amino acid (AA) digestibility of sunflower seed meal (SFSM) and to use this data to develop prediction equations for estimating AA digestibility for growing pigs. Ten SFSM were collected from five provinces in China. Twelve barrows ($38.8{\pm}4.6kg$), fitted with ileal T-cannula were allotted into two $6{\times}6$ Latin square designs. Each of six experimental periods comprised a 5-d adaption period followed by a 2-d collection of ileal digesta. The ten test diets contained 50% SFSM as the sole source of AA. Another nitrogen-free diet was used to measure the basal endogenous losses of crude protein (CP) and AA. Chromic oxide (0.3%) was used as an inert marker in each diet. There was considerable variation (CV>10%) among the ten SFSM in chemical composition (dry matter [DM]). The concentration of CP and ether extract (EE) ranged from 29.33% to 39.09% and 0.88% to 11.33%, respectively. Crude fibre (CF), neutral detergent fibre and acid detergent fibre ranged from 21.46% to 36.42%, 38.15% to 55.40%, and 24.59% to 37.34%, respectively. There was variation among the ten SFSM in apparent ileal digestibility (AID) and standardized ileal digestibility (SID) for lysine and threonine, which ranged from 63.16 to 79.21 and 55.19% to 72.04% for AID and 67.03% to 82.07% and 61.97% to 77.01% for SID, respectively. The variation in CP and methionine ranged from 60.13% to 74.72% and 74.79% to 88.60% for AID and 66.70% to 79.31% and 77.16% to 90.27% for SID, respectively. Methionine was a good indicator to predict AA digestibility. These results indicate that conventional chemical composition of SFSM was variable (CV>10%) among the ten SFSM (DM). The results of AID, SID and prediction equations could be used to evaluate the digestibility of SFSM in growing pigs.

Effect of Chemical Composition and Dietary Enzyme Supplementation on Metabolisable Energy of Wheat Screenings

  • Mazhari, M.;Golian, A.;Kermanshahi, H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.24 no.3
    • /
    • pp.386-393
    • /
    • 2011
  • Three trials were conducted to determine the available energy of different wheat screening varieties collected from different locations of Khorasan in Iran. In experiment 1, chemical composition and the nitrogen corrected true metabolisable energy (TMEn) were evaluated. A precision-fed rooster assay was used, in which, each wheat screening sample was tube fed to adult roosters, and the excreta were collected for 48-h. In Exp. 2 and 3, five and two wheat screening verities-based diets with or without xylanase and phytase were fed to 16-day old battery reared chicks respectively, and total feed consumption and excreta were measured during next three days. The variable nature of wheat screening varieties led to significant differences in mean TMEn values (p<0.01). The TMEn values of samples determined with adult roosters varied by ${\pm}5.03%$ of the mean value ($3,097.65{\pm}49.32\;kcal/kg$) and ranged from 2,734.90 to 3,245.12 kcal/kg. There was a significant correlation (p<0.05) between crude fiber (CF), neutral detergent fiber (NDF), and acid detergent fiber (ADF) with TMEn, and the greatest correlation coefficient was observed between NDF and TMEn (r = -0.947; p<0.001). The optimal equation in terms of $R^2$ from using a single chemical analysis was obtained with NDF: TMEn = 4,152.09-27.80 NDF ($R^2$ = 0.90, p<0.0001), and the TME prediction equation was improved by the addition of the crude protein (CP) and ASH content to sequential analysis: TMEn = 3,656.97-28.65 NDF+32.54 CP+38.70 ASH ($R^2$ = 0.98, p<0.0001). The average AMEn values of 5 and 2 wheat screening varieties determined with young broiler chickens were $2,968.41{\pm}25.70\;kcal/kg$ and $2,976.38{\pm}8.34\;kcal/kg$ in Exp. 2 and Exp. 3, respectively. Addition of xylanase and phytase to wheat screenings resulted in significant (p<0.01) improvement in AMEn by 4.21 and 2.92%, respectively.

Comparison of Digestive Organ and Body Composition among the Cultured, Wild and Released Fish, 1-Year Black Sea Bream (Acanthopagrus schlegeli) (양식, 방류 및 자연산 감성돔 1년어의 소화기관 및 체성분 비교)

  • JI Seung Cheol;Yoo Jin Hyung;JEONG Gwan Sik;MYEONG Jeong Gu;LEE Si Woo;GO Hyeon Jeong
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.37 no.6
    • /
    • pp.462-468
    • /
    • 2004
  • In order to evaluate adaptation to the environment in released fish, digestive organ and body composition were compared among 1-year old cultured (CUL), released (REL) and wild (WIL) Black Sea Bream, Acanthopagrus schlegeli. Hepatosomatic index (HSI) of the REL was significantly lower than those of the CUL and WIL fish, but intestine weight index (IWI) of REL was significantly higher than those of the CUL and WIL fish. There were no significant differences in stomach weight index (SWI) and condition facto. (CF) among those different fish groups. The number of pyloric caeca of the REL and WIL fish were 4, but the $30{\%}$ of CUL fish was 3 counts. The moisture content of whole body in the WIL fish was significantly higher than the CUL and REL fish, but significant lowest in the crude lipid of whole body. The content of moisture and crude protein of dorsal muscle were no significant differences among the CUL, REL and WIL fish, but crude lipid content of WIL fish was significantly lower than the CUL and REL fish. Moisture content of CUL fish in the liver was significantly lower than the REL and WIL fish, and crude lipid was significant lowest in the WIL fish. Amino acid content of dorsal muscle in the WIL fish was highest in the total amino acid, EAA and E/A ratio, and CUL fish was highest EAA and E/A ratio in liver. EPA content in dorsal muscle of WIL fish was lower than CUL and REL fish, and the REL fish was highest in DHA content of the fatty acid. EPA content in liver of WIL fish was lower than CUL and REL fish, and DHA content in REL and WIL fish was highest and lowest. Crude protein content of CUL and WIL fish in the scale was significantly higher than REL fish, but there were no significant differences in contents of crude lipid and ash. Ca and P of scale were formed most of mineral and content of P in CUL fish was significantly higher than those of REL and WIL fish. There were no significant differences in Mg, K, Na and S of scale, but CUL fish was significantly lower than REL fish in C1. The results suggest that difference of digestive organs and body composition concluded it from differences of inhabitation environment and feed formulations.

Effect of Chitosan-Soybean Curd on Serum Lipid Metabolism in Rats Fed High-Fat Diet (키토산 두부가 고지질 식이를 급여한 흰쥐의 혈청 지질대사에 미치는 영향)

  • 노홍균;백경연;김석중
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.31 no.6
    • /
    • pp.1078-1083
    • /
    • 2002
  • Effects of chitosan-soybean curd (prepared using chitosan as a coagulant), commercial soybean curd and chitosan powder on serum lipid metabolism were investigated with rats fed high-fat diet for 6 weeks. Food intake of experimental groups fed high-fat (HF), chitosan-soybean curd (CSC), soybean curd (SC), or chitosan powder (CP)diet was lower compared to t]tat of normal group. Body weight gain was lower in rats fed the CSC, SC and CP diets than in rats fed the HF diet. There was no significant difference in total cholesterol concentration among all groups, but HDL-cholesterol concentration was higher and LDL-cholesterol concentration was lower in rats fed the CSC, SC, CP diets than in rats fed the HF diet. Total lipid level was lower in rats fed the SC and CP diets than in rats fed the HF diet. Increment of triglyceride level and decrement of phospholipid level in rats fed the HF diet were recovered significantly by the CSC, SC and Cf diet. Our results indicate that chitosan-soybean curd prepared under the commercial processing condition may provide the beneficial effect on lipid metabolism even though its effect didn't show any significant difference compared to that of commercial soybean curd under the present experimental conditions.

Influence of Urea Treatment and Soybean Meal (Urease) Addition on the Utilization of Wheat Straw by Sheep

  • Kraidees, M.S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.18 no.7
    • /
    • pp.957-965
    • /
    • 2005
  • 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.

Validation of Prediction Equations to Estimate the Energy Values of Feedstuffs for Broilers: Performance and Carcass Yield

  • Alvarenga, R.R.;Rodrigues, P.B.;Zangeronimo, M.G.;Makiyama, L.;Oliveira, E.C.;Freitas, R.T.F.;Lima, R.R.;Bernardino, V.M.P.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.26 no.10
    • /
    • pp.1474-1483
    • /
    • 2013
  • The objective was to evaluate the use of prediction equations based on the chemical composition of feedstuffs to estimate the values of apparent metabolisable energy corrected for nitrogen balance (AMEn) of corn and soybean meal for broilers. For performance and carcass characteristics, 1,200 one-d-old birds (male and female) were allotted to a completely randomised factorial $2{\times}8$ (two genders and eight experimental diets) with three replicates of each sex with 25 birds. In the metabolism trial, 240 eight-d-old birds were distributed in the same design, but with a split plot in time (age of evaluation) with five, four and three birds per plot, respectively, in stages 8 to 21, 22 to 35, and 36 to 42 d of age. The treatments consisted of the use of six equations systems to predict the AMEn content of feedstuffs, tables of food composition and AMEn values obtained by in vivo assay, totalling eight treatments. Means were compared by Scott-Knott test at 5% probability and a confidence interval of 95% was used to check the fit of the energy values of the diets to the requirements of the birds. As a result of this study, the use of prediction equations resulted in better adjustment to the broiler requirements, resulting in better performance and carcass characteristics compared to the use of tables, however, the use of energy values of feedstuffs obtained by in vivo assay is still the most effective. The best equations were: AMEn = 4,021.8-227.55 Ash (for corn) combined with AMEn = -822.33+69.54 CP-45.26 ADF+90.81 EE (for soybean meal); AMEn = 36.21 CP+85.44 EE+37.26 NFE (nitrogen-free extract) (for corn) combined with AMEn = 37.5 CP+46.39 EE+14.9 NFE (for soybean); and AMEn = 4,164.187+51.006 EE-197.663 Ash-35.689 CF-20.593 NDF (for corn and soybean meal).

DENTOFACIAL CHANGES IN CLASS I PROTRUSION PATIENTS TREATED WITH PREMOLAR EXTRACTIONS (제 1 소구치 발치가 수반된 Class I전돌 증례의 치료 전후 변화)

  • Chang, Young-Il;Lee, Yu-Hyun
    • The korean journal of orthodontics
    • /
    • v.26 no.5 s.58
    • /
    • pp.487-495
    • /
    • 1996
  • The purpose of this study was to evaluate the dentofacial characteristics and the fost-treatment dentofacial changes of those treated by four premolar extractions and to investigate the factors affecting extraction decision. The sample consisted of 35 patients (27 females, and 8 males) with no more than 7.0mm crowding, diagnosed as Class I protrusion. Pre-treatment and post-treatment lateral cephalograms were evaluated. Computerized statistical analysis was carried out using SPSS/PC+ program. The results were as follows. 1. There was no significant change in skeletal pattern after treatment while there was significant change in dentoalveolar and soft tissue pattern. 2. In pre-treatment skeletal pattern, a tendency toward vertical discrepancy was found. 3. In pre-treatment dental pattern, interincisal angle was $113.11^{\circ}$, U1 to FH was $117.78^{\circ}$ and L1 to A-Pog was 7.94mm. Pre-treatment upper and lower lip position was 2.88mm and 5.43mm to E line. 4. After treatment, interincisal angle increased $14.46^{\circ}$ and upper and lower lip moved back 2.45mm and 3.2mm to E line.(p<0.001) 5. The EI was 138.71 before treatment and 148.2 after treatment.

  • PDF

Structural and Electrical Properties of Fluorine-doped Zinc Tin Oxide Thin Films Prepared by Radio-Frequency Magnetron Sputtering

  • Pandey, Rina;Cho, Se Hee;Hwang, Do Kyung;Choi, Won Kook
    • Proceedings of the Korean Vacuum Society Conference
    • /
    • 2014.02a
    • /
    • pp.335-335
    • /
    • 2014
  • Over the past several years, transparent conducting oxides have been extensively studied in order to replace indium tin oxide (ITO). Here we report on fluorine doped zinc tin oxide (FZTO) films deposited on glass substrates by radio-frequency (RF) magnetron sputtering using a 30 wt% ZnO with 70 wt% SnO2 ceramic targets. The F-doping was carried out by introducing a mixed gas of pure Ar, CF4, and O2 forming gas into the sputtering chamber while sputtering ZTO target. Annealing temperature affects the structural, electrical and optical properties of FZTO thin films. All the as-deposited FZTO films grown at room temperature are found to be amorphous because of the immiscibility of SnO2 and ZnO. Even after the as-deposited FZTO films were annealed from $300{\sim}500^{\circ}C$, there were no significant changes. However, when the sample is annealed temperature up to $600^{\circ}C$, two distinct diffraction peaks appear in XRD spectra at $2{\Theta}=34.0^{\circ}$ and $52.02^{\circ}$, respectively, which correspond to the (101) and (211) planes of rutile phase SnO2. FZTO thin film annealed at $600^{\circ}C$ resulted in decrease of resistivity $5.47{\times}10^{-3}{\Omega}cm$, carrier concentration ~1019 cm-3, mobility~20 cm2 V-1s-1 and increase of optical band gap from 3.41 to 3.60 eV with increasing the annealing temperatures and well explained by Burstein-Moss effect. Change of work function with the annealing temperature was obtained by ultraviolet photoemission spectroscopy. The increase of annealing temperature leads to increase of work function from ${\phi}=3.80eV$ (as-deposited FZTO) to ${\phi}=4.10eV$ ($600^{\circ}C$ annealed FZTO) which are quite smaller than 4.62 eV for Al-ZnO and 4.74 eV for SnO2. Through X-ray photoelectron spectroscopy, incorporation of F atoms was found at around the binding energy of 684.28 eV in the as-deposited and annealed FZTO up to 400oC, but can't be observed in the annealed FZTO at 500oC. This result indicates that F atoms in FZTO films are loosely bound or probably located in the interstitial sites instead of substitutional sites and thus easily diffused into the vacuum from the films by thermal annealing. The optical transmittance of FZTO films was higher than 80% in all specimens and 2-3% higher than ZTO films. FZTO is a possible potential transparent conducting oxide (TCO) alternative for application in optoelectronics.

  • PDF

Cloning and Nucleotide Sequence Analysis of the Virulence Gene Cassette from Vibrio cholerae KNIH002 Isolated in Korea (국내 분리주인 Vibrio cholerae KNIH002로부터 독성 유전자 카세트의 클로닝 및 염기서열 분석)

  • 신희정;박용춘;김영창
    • Korean Journal of Microbiology
    • /
    • v.35 no.3
    • /
    • pp.205-210
    • /
    • 1999
  • 16brio cholerne is an important pathogenic organism that causes dimhea in human beings. V ciaoleroe KNIH002 was isolated from patients suffering with dian.heal disease in Korea. From Southern hybridization using the amplified PCR product of 307 bp as a probe. which was obtained from PCR reaction using primer detecting cholera toxin gene, we have found that the c b gene located in 4.5-kb fragmenl double digested with Pstl and BgllI of the chromosome. Therefore, we made mini-libraries of the isolate using PstI and Bgm restriction endonuclease and pBluescript SKU(+) vector. As a result. we cloned 4.5-kb PstI-BglII fragment containing the c a gene encoding a cholera toxin from the constructed mini-libraries of V olzolerae KNlH002 by colony hybridization using the same probes. This recombinant plasmid was named pCTX75. E. coii XL1- Blue harboring pCTX75 showed the cytotoxicity on Chinese Hamster Ovary cells. From the sequencing of he cloned recombinant plasmid, we confinned that it has virulence gene cassette consisting of ace, zot, ctx.4 and cf"~B gene. The ace and zot genes were composed of 291 hp and 1.200 bp with ATG initiation codon and TGA lennination codon, respectively. Nucleotide sequence of the ace gene exhibited 100% identity with that of V cholera E7946 El Tor Ogawa strains. But, nucleolide and amino acid sequence comparison of the zot gene exhibited 99% and 98.8% identity with that of V cholerae 395 Classical Ogawa stram, respectively. Specially. the Ala-100, Ala-272 and Ala-281 sites of Zoi polypeptide presented in V choleme 395 Classical Ogawa strain are replaced by Val in V cholerae KNIH002.

  • PDF

영국의 중의학: 의사, 의사가 아닌 시술자, 중국인 시술자

  • Stollberg, Gunnar
    • Journal of Pharmacopuncture
    • /
    • v.6 no.1
    • /
    • pp.14-15
    • /
    • 2003
  • 중의학은 서양의 의료 다원주의의 한 부분이 되었다. 특히 침과 같이 서양의 개념과는 분명히 다른 의료 기법에 있어서는 두드러진다. 그밖에 뜸, 안마, 기공, 중약 및 복합 처방들도 있다. 서양에서 전문직업인화는 보건의료 관련분야에서 중심적인 인력양성 방법이 되었다. 이는 대학이 기반을 다진 중세까지 거슬러 올라가는데, 19세기에는 법인들이 전문직업인 모임으로 바뀌어 가면서 개인적 환경을 변화시키고 직업의 체계를 개발하였다. 변호사, 교사, 사제, 의사가 그 예이다. 의료에 있어서 학교교육을 통해 수련된 의사들이 조산사나 안마사들을 지배하게 되었는데 이런 경향은 1950-60년대에 극에 달한다. 그러다가 이들의 지배는 대중매체, 환자, 다른 주변 의료 보조인력들에 의해 도전을 받는다. 이와 비슷한 양상을 이단적인 의료에서도 관찰할 수 있다. 전문직업인의 우세와 시점이 비슷한 생물의학의 우월적 지배는 많은 다양한 의료에 의해 도전을 받는다. 그러나 생물의학의 우월함의 약세가 시술자들의 전문직업인화 까지를 포함하지는 않았다. 실제로 침술과 같은 치료술들을 전문직업인인 의사나 의사가 아닌 시술자들이 함께 쓰고 있기 때문이다. 이는 직능간의 분쟁을 야기할 가능성이 높다. 이단적 개념을 기존 의료계로 통합하는 것이 전문직업인들인 의사들의 노력으로 이해되었다. 이 견해는 두 가지 문제를 내포하고 있는데, 첫째 의사들을 단일한 속성으로 보고 있다는 것인데, 실제로 현대의학을 배우고 가르치는 나라들 사이에도 매우 다양한 차이가 있음을 간과하고 있다. 둘째로 의료인이 아닌 시술자들도 다양한 분야로 통합되었는데, 통합은 어쩌면 하급의 전문인들의 노력의 결과로 설명되어야 하는 것이 더 알맞을 수 있다. 그러나 이들도 전문직업인의 조직구조를 가져야 만 하고, 그렇지 않으면 파편으로 남을 것이다. 전문직업인주의는 언제나 과학과 연계하고 있는데, 독일 정부와 직업인 조직은 의료과학 집단에게 이단적 시술들의 임상효과를 검증하게 하였다. 이것은 이단 의료계에 우호적인 단체나 적대적인 단체 모두에게 적용되었다. 매우 강한 힘을 가진 냉소적인 조직 가운데 하나는 National Committee of SHI-Physicians and Sickness Funds(Bundesausschuss der Arzte und Krankenkassen).2 인데, 2001년에, 이 단체에서 출판한 자료에는 침의 효용성은 침을 시술하는 사람에 달린 것 일뿐 시술자의 수련이나 침 시술의 배경 개념에 달려있는 것이 아니다. 그러므로 침은 무작위 표본추출 대조군 실험을 통해 효과를 검증받지 못한 다른 치료법들의 범주에 머물러 있다.(cf. Bundesausschuss 2001: 8). 1990년대, 무작위 표본추출 대조군 실험은 생물의학이 아닌 의료의 효과를 검증하는데 알맞지 않고 비윤리적이라고 강한 비판을 받았다. 한편 1995년에 WHO는 침의 유효성 평가를 위해 이 실험기법을 추천하며, 이어 2001년에, the International Council of Medical Acupuncture and Related Techniques(ICMART)는 침연구와 시술을 위한 헌장(Acupuncture Charter Berlin an Evidence Based Medicine (EBM)3 for acupuncture)을 채택 공표한다. 독일 보험 회사들도 침의 효과와 효율성을 검증하기 위해 대규모 실험을 시작했다. 100,000 명이 넘는 환자들이 무작위 표본추출 대조군 실험을 통해 평가되고 있는데 이 실험은 병원이나 일차의료기관의 외래에서 진행되고 있다. 영국에서는 이 분야의 유력한 Edzard Ernst가 위의 개념과 비슷한 구도를 설정 공표하는데 보완의학 분야의 많은 다른 전문가들의 견해를 무릎 쓰고, 그는 증거기반 의학에 대한 그의 신념을 표방한다. "무작위 표본추출 대조군 실험이 보환의학 분야의 시술을 검증하기 위한 알맞은 방법이 아니라고 끝없이 주장하지만 우리는 거의 모든 치료법을 포괄하는 분야에 이들 실험을 발견하였으니, 이는 보완의학도 엄정한 방법으로 검증할 수 있다는 것을 보여준다고 할 수 있다."(Ernst et al. 2001: xiii). 적어도 독일에서 진행중인 효과 검증 연구가 향후 아시아 의학의 기반 마련에 중요한 역할을 하게 될 것이다. 영국에서는 이에 대한 정치적 수렴이 전문 직업인화에 달려 있을 것이다. 여기에서 나는 아시아에서 유래한 의료의 서양에서 어떻게 사회학적 관찰의 대상으로 분류되고 정의되는지 소개하고자 한다.