비육돈에 미생물제제 급여시 분뇨 특성에 미치는 효과

곽정훈,최동윤,박치호,김재환,정광화,양창범,유용희,천현식,라창식,Kwag, J.H.,Choi, D.Y.,Park, Ch.H.,Kim, J.H.,Jeong, K.H.,Yang, Ch.B.,Yoo, Y.H.,Chen, H.S.,La, C.S. 한국축산환경학회 2007 축산시설환경학회지 Vol.13 No.3

본시험은 비육돈사료에 미생물제제를 사료에 미생물제제 A 및 B 0.1 미생물제제 C를 0.2% 혼합 급여할 경우 사료섭취량 및 돈분의 오염물질 배설농도에 미치는 영향을 분석하기 위하여 4처리$\times$반복당 5두로서 총 20두를 공시하여 실시하였는데 그 결과를 요약하면 다음과 같다. 1. 비육돈의 일일 평균사료섭취량은 대조구 3.15 kg/일.두였고 미생물A, B, C구는 각각 3.14kg/일/두, 3.31, 3.42로 미생물제제 C구에서 일일 사료섭취량이 가장 높게 조사되었으며(p<0.05), 2. 일일평균 음수량은 사료섭취량이 높았던 미생물 C구에서 3.95kg/일/두로 가장 높게 조사되었다(p<0.05). 3. 미생물제제 처리구별로 분뇨배설량은 사료섭취량이 높았던 미생물제제 C구에서 가장 많이 배설되는 것으로 조사되었으며(p<0.05), 돈뇨의 배설량도 미생물제제 C구에서 2.23kg/일/두에서 높았다(p<0.05). 4. 돈분뇨의 수분 함량은 및 비료성분인 T-N, $P_{2}O_{5}$, $K_{2}O$ 성분도 처리 간에 큰 차이를 보이지 않았다(p<0.05). 5. 돈분뇨의 평균 BOD 농도는 돈분의 경우 미생물제제 B, C제제 급여구가 유의적으로 높게 조사되었다(p<0.05). 그리고 돈뇨의 BOD의 경우에는 대조구에서 $8,657.5mg/{\ell}$로 가장 높은 것으로 조사되었다(p<0.05). 6. COD 농도는 대조구에서 가장 높게 조사되었으며(p<0.05). 돈뇨의 경우에는 미생물제제 A급여구에서 평균 $9,545mg/{\ell}$로 가장 높았다(p<0.05). 7. SS 농도는 미생물제제 B급여구에서 가장 높게 조사되었으며(p<0.05), 돈분뇨중의 T-N 농도는 처리구간에 유의적인 차이가 나타나지 않았다(p<0.05). 그리고 T-P 농도의 경우에는 미생물제제 C급여구에서 유의적인 차이가 나는 것으로 조사되었다(p<0.05). 이상의 결과를 요약해보면 비육돈에 미생물제제 혼합급여시 사료섭취량과 음수량을 증가시키는데 효과가 있는 것으로 조사되었으나, 비료성분 배설량에는 큰 차이를 보이지 않는 것으로 조사되었으나, BOD 등 오염물질농도의 경우에는 미생물제제 A급여구에서 가장 낮게 조사되어 비육돈사료에 미생물제제 급여시 오염물질 저감효과가 있는 것으로 조사되었다. Study for the effect of three different microbial feed additives(henceforth MA-A, MA-B, and MA-C) on feed coversion rate, and physical and chemical characteristics of swine finisher was conducted. MA-B had higher number of Lactobacillus spp. and yeast, compared to any other. The amylase activity of MA-B was also higher than any other. The daily feed intake rates of pigs fed control, MA-A, MA-B and MA-C were 3.15, 3.14, 3.31 and 3.42 kg, respectively. MA-C had the highest weight gain. However, there was no significant difference between treatments. The weights of feces daily excreted by pigs fed control, MA-A, MA-B, and MA-C were 2.14, 2.02, 2.18, and 2.23 kg/day, respectively. The volume of urine daily excreted by pigs fed control, MA-A, MA-B, and MA-C were 3.14, 3.26, 3.27, and $3.41\;{\ell}/day$, respectively. Water content, T-N, $P_{2}O_{5}$, and $K_{2}O$ in swine manure were not significantly different between treatments. The BOD were between 42,576 and $67,450\;mg/{\ell}$ for feces and were between 5,882.5 and $8,657.5\;mg/{\ell}$ for urine, respectively. The SS were between 138,000 and $180,000\;mg/{\ell}$ for feces and were between 875.0 and $1450.0mg/{\ell}$ for urine, respectively.

Au-MPY/DTNBΣiO₂ SERS nanoprobe for immunosorbent assay

Chen, L.,Sa, Y.,Park, Y.,Hwang, H.,Ji, H.,Zhao, B.,Jung, Y.M. Elsevier 2016 Vibrational spectroscopy Vol.87 No.-

<P>In this paper, we developed a biocompatible surface-enhanced Raman scattering (SERS) nanoprobe that employs 4-mercaptopyridine (MPY)/5,5-dithiobis(2-nitrobenzoic acid) (DTNB)-decorated gold aggregates embedded in silicon dioxide. This highly sensitive SERS nanoprobe was applied in immunoassays. Furthermore, we constructed a sandwich (silver-proteins-Au-MPY/DTNB@SiO2) model that contributes very strong electromagnetic (EM) fields. Compared with a single layer of the SERS-active substrate, the designed model exhibited highly sensitive detection capabilities. This method demonstrates considerable potential for ultrasensitive SERS immunoassay applications. In addition, the proposed silica protected gold nanoaggregates possess good biocompatibility with proteins. (C) 2016 Elsevier B.V. All rights reserved.</P>

Evaluation of mango saponin in broilers: effects on growth performance, carcass characteristics, meat quality and plasma biochemical indices

Y.N. Zhang,J. Wang,B. Qi,S.G. Wu,H.R. Chen,H.Y. Luo,D.J. Yin,F.J. Lu,H.J. Zhang,G.H. Qi 아세아·태평양축산학회 2017 Animal Bioscience Vol.30 No.8

Objective: The objective of the present study was to determine whether mango saponin (MS) could be used as a feed additive in broiler chicks by evaluating growth performance, carcass characteristics, meat quality, and plasma biochemical indices. Methods: A total of 216 1-d-old Arbor Acres male broiler chicks were randomly assigned into three dietary treatments supplemented with 0 (control), 0.14% (MS 0.14%), or 0.28% (MS 0.28%) MS. Each treatment had six replicates (cages) with 12 chicks each. The feeding trial lasted for six weeks. Results: Compared with the control, dietary supplemented with 0.14% or 0.28% MS increased average daily weight gain of chicks in the grower (22 to 42 d) and the whole (1 to 42 d) phases, and the final body weight of chicks on d 42 was higher in MS supplemented groups (p<0.05). Lower L45 min* (lightness) and L24 h* values, lower b24 h* (yellowness) value, and higher a45 min* (redness) and a24 h* values of the breast muscle were observed in chicks fed with 0.28% MS on d 42 (p<0.05). The total antioxidant capacity in plasma increased in MS 0.14% group on d 21 (p<0.001). Lower contents of plasma total cholesterol and triglyceride were observed in chicks fed with 0.28% MS on d 21 and d 42, whereas the group supplemented with 0.14% MS only decreased plasma triglyceride content on d 21 (p<0.05). The glucose content in plasma decreased in MS 0.28% group on d 42 (p<0.001). Conclusion: Overall, MS could be used as a feed additive in broiler chicks, and the supplemental level of 0.28% MS in diet could improve growth performance, meat quality, and plasma lipid metabolism in broiler chicks.

Triple-band metamaterial absorber based on single resonator

Kim, Y.J.,Hwang, J.S.,Yoo, Y.J.,Khuyen, B.X.,Chen, X.,Lee, Y. ELSEVIER 2017 Current Applied Physics Vol.17 No.10

<P>The single resonator generally reveals a single absorption band, and the resonators with different sizes or shapes have to be arranged in order to achieve multi-absorption bands. We propose the triple-band metamaterial absorber by utilizing only single resonator. Meta-atoms are made of the toothed-wheel shape metallic pattern and a continuous metallic plane, separated by a dielectric layer. The first and the third absorption bands are induced by the fundamental and the third-harmonic magnetic resonances, respectively, and the second absorption band is induced by the magnetic resonance relevant to two grooves. In addition, the diffraction peak appears between the second and the third absorption bands, due to the surface currents which are separated between the upper and the lower metallic pattern parts. The proposed structure is scalable to smaller size for the infrared and the visible regimes. (C) 2017 Elsevier B.V. All rights reserved.</P>

Search forB0→pΛ¯π−γat Belle

Lai, Y.-T.,Wang, M.-Z.,Adachi, I.,Aihara, H.,Asner, D. M.,Aulchenko, V.,Aushev, T.,Bakich, A. M.,Bala, A.,Bhuyan, B.,Bobrov, A.,Bozek, A.,Brač,ko, M.,Browder, T. E.,Chang, P.,Chekelian, V.,Chen, American Physical Society 2014 PHYSICAL REVIEW D - Vol.89 No.5

<P>We search for the charmless B-o decay with final state particles p (Lambda) over bar pi(-)gamma using the full data sample that contains 772 x 10(6)B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. This decay is predicted to proceed predominantly via the b -> s gamma radiative penguin process with a high energy photon. No significant signal is found. We set an upper limit of 6.5 x 10(-7) for the branching fraction of B-o -> p (Lambda) over bar pi(-)gamma at the 90% confidence level.</P>

Investigation of PCR-RFLPs within Major Histocompatibility Complex B-G Genes Using Two Restriction Enzymes in Eight Breeds of Chinese Indigenous Chickens

R. F. Xu,K. Li,G. H. Chen,B. Y. Z. Qiang,D. L. Mo,B. Fan,C. C. Li,M. Yu,M. J. Zhu,T. A. Xiong,B. Liu 아세아·태평양축산학회 2005 Animal Bioscience Vol.18 No.7

New polymorphism of major histocompatibility complex B-G genes was investigated by amplification and digestion of a 401bp fragment including intron 1 and exon 2 using polymerase chain reaction-restriction fragment length polymorphism (PCRRFLP) technique with two restriction enzymes of Msp I and Tas I in eight breeds of Chinese indigenous chickens and one exotic breed. In the fragment region of the gene, three novel single nucleotide polymorphisms (SNPs) were detected at the two restriction sites. We found the transition of two nucleotides of A294G and T295C occurred at Tas I restriction site, and consequently led to a nonsynonymous substitution of asparagine into serine at position 54 within the deduced amino acid sequence of immunoglobulin variableregion- like domain encoded by the exon 2 of B-G gene. It was observed at rare frequency that a single mutation of A294G occurring at the site, also caused an identical substitution of amino acid, asparagine 54-to-serine, to that we described previously. And the transversion of G319C at Msp I site led to a non-synonymous substitution, glutamine 62-to-histidine. The new alleles and allele frequencies identified by the PCR-RFLP method with the two enzymes were characterized, of which the allele A and B frequencies at Msp I and Tas I loci were given disequilibrium distribution either in the eight Chinese local breeds or in the exotic breed. By comparison, allele A at Msp I locus tended to be dominant, while, the allele B at Tas I locus tended to be dominant in all of the breeds analyzed. In Tibetan chickens, the preliminary association analysis revealed that no significant difference was observed between the different genotypes identified at the Msp I and Tas I loci and the laying performance traits, respectively.

In-situ high-energy synchrotron X-ray diffraction study of micromechanical behavior of multiple phases in Ni₄₇Ti₄₄Nb₉ shape memory alloy

Sun, G.A.,Wang, X.L.,Wang, Y.D.,Woo, W.C.,Wang, H.,Liu, X.P.,Chen, B.,Fu, Y.Q.,Sheng, L.S.,Ren, Y. Elsevier Sequoia 2013 Materials science & engineering. properties, micro Vol.560 No.-

High-energy synchrotron X-ray diffraction technique was used to in-situ characterize microstructure, lattice strain, and phase transition behavior of a Ni<SUB>47</SUB>Ti<SUB>44</SUB>Nb<SUB>9</SUB> shape memory alloy. Phase transformation kinetics and deformation mechanisms were studied under a uniaxial tension at three testing temperatures, i.e., -70<SUP>o</SUP>C, 25<SUP>o</SUP>C, and 150<SUP>o</SUP>C. At a testing temperature of -70<SUP>o</SUP>C, a complicated phase transformation with four stages of micromechanical deformation was identified which is associated with changes of martensite substructures. At room temperature of 25<SUP>o</SUP>C, there was no stress-induced selection process of variants of B19' phases observed. Whereas at a testing temperature of 150<SUP>o</SUP>C, there was no any phase transformation observed. It is verified that β-Nb phase, an effective stabilizer for the austenite, delays the process of martensitic transformation and relaxes the strain energy without strengthening the matrix. This new finding is important to understand the relationship between the micromechanical deformation behavior and phase transformations in the Ni<SUB>47</SUB>Ti<SUB>44</SUB>Nb<SUB>9</SUB> SMA.

Measurement of|Vub|from Inclusive Charmless SemileptonicBDecays

Urquijo, P.,Barberio, E.,Adachi, I.,Aihara, H.,Arinstein, K.,Bakich, A. M.,Belous, K.,Bhardwaj, V.,Bischofberger, M.,Bozek, A.,Brač,ko, M.,Browder, T. E.,Chao, Y.,Chen, A.,Cheon, B. G.,Chistov, R American Physical Society 2010 Physical review letters Vol.104 No.2

<P>We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-ub vertical bar, using a multivariate analysis method to access similar to 90% of the B -> X(u)l nu phase space. This approach dramatically reduces the theoretical uncertainties from the b-quark mass and nonperturbative QCD compared to all previous inclusive measurements. The results are based on a sample of 657 X 10(6) B (B) over bar pairs collected with the Belle detector. We find that Delta B(B -> X(u)l nu; p(l)*(B) > 1.0 GeV/c) = 1.963X(1 +/- 0.088(stat) +/- 0.081(syst)) X 10(-3). Corresponding values of vertical bar V-ub vertical bar are extracted using several theoretical calculations.</P>

간호대생과 비보건계열 여대생의 미세먼지 위험에 대한 인식과 지식, 건강 관리행위 비교 연구

김선미,김슬기,김진선,박주형,배다희,유수빈,유영주,임지향,최유진,Chen Mengyao,양숙자,손지희 이화여자대학교 간호과학대학 2019 이화간호학회지 Vol.- No.53

Purpose: This study aimed to know whether there is a comparison of perception, knowledge and health promoting behaviors about particular matter between nursing students and non-health departments college students. Methods: A quantitative research is used. Data were collected from August 1 to 19. The study sample was nursing students and non-health departments students. For the similar condition of samples, this study excluded whose first language is not Korean. Independent T-test and pearson’s correlation was used for this study. Results: A significant positive correlation did not existed between difference of major and perception(t=0.017, p=0.986), knwledge(t=0.652, p=.516) and health promoting behaviors(t=-0.114, p=.910) about particular matters. Conclusion: Based on the study results, there is no significant correlation of perception and actions about particular matters between nursing students and non-health department college students.

Portable, non-destructive tester integrating VIS/NIR reflectance spectroscopy for the detection of sugar content in Asian pears

Choi, J.H.,Chen, P.A.,Lee, B.,Yim, S.H.,Kim, M.S.,Bae, Y.S.,Lim, D.C.,Seo, H.J. International Society for Horticultural Science ; 2017 Scientia horticulturae Vol.220 No.-

<P>In this study, a portable, non-destructive tester, integrating near-infrared (NIR) spectroscopy, was developed to determine the maturity of Asian pears. In addition, regression analysis was conducted for mature Manpungbae pears using the partial least squares regression model with the Brix value of Asian pears in a wavelength range of 710-930 nm, and the standard error of calibration or standard error of prediction (SEC/SEP) of 0.41-0.43 degrees Brix and relative standard error of calibration or relative standard error of prediction (rSEC/rSEP) = 0.91-0.92 were observed, indicating excellent prediction performance with no dependence on pretreatment conditions. Furthermore, the reliability of the developed Brix determination model was confirmed using Manpungbae, Wonhwang, Chuhwangbae, and Niitaka pears, and SEP, rSEP, and bias values of 0.29-0.33 degrees Brix, 0.90-0.96, and 1.67E-04, respectively, were observed, indicating high reliability. Hence, the construction of a Brix determination model by the accumulation of absorbance for several varieties of pears in each harvest period is expected to determine optimum harvest times via the measurement of the Brix values at full maturity regardless, of the variety. (C) 2017 Elsevier B.V. All rights reserved.</P>