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11999-2005年我国婴幼儿人杯状病毒腹泻研究显示文摘人杯状病毒(HuCV)是世界范围内急性腹泻的重要病原。此文收集我国长春、北京、河北卢龙、兰州、昆明等13个地区1999-2005年5岁以下腹泻患儿检测轮状病毒为阴性的粪便标本4426份,用ELISA和RT-PCR方法检测HuCV,结果表明HuCV检测阳性率为19%(8.3%-38.6%)。对其中151株HuCV PCR产物测序进行核苷酸序列比对构建的系统发生树表明,我国流行的HuCV以诺如病毒(NV)为主(146/151,占96.7%),其中绝大多数为GGⅡ/4基因型(99/146),其它依次为GGⅡ/3(22/146)、GGⅡ/5(8/146)、GGⅡ/6(2/146)、GGⅡ/7(2/146)、GGⅡ/8(2/146)和GGⅠ/2(2/146),札如病毒(SV)共5株,均属SGⅡ。此外有9株NV GGⅡ遗传组毒株,尚不能归入现有基因型,可能为我国特有的新基因型,表明我国流行的HuCV毒株存在很高的遗传多样性。我国婴幼儿HuCV腹泻全年都有发生,但秋冬季(10月-次年1月)有一个发病高峰,病例以6-17月龄组最多,至3岁时超过96%的儿童都感染过HuCV。对我国流行的HuCV不同毒株的地区分布,不同年度HuCV检测阳性率的变化趋势进行了讨论。方肇寅 谢华萍 吕红霞 刘娜 章青 段招军 Duncan Steele Baoming Jiang Xi Jiang 2007病毒学报2007,23,1:131
2Dietary resveratrol improves antioxidant status of sows and piglets and regulates antioxidant gene expression in placenta by Keap1-Nrf2 pathway and Sirt1显示文摘Background: Resveratrol, a plant phenol, affords protection against inflammation and oxidative stress. The objective of this study was to investigate the effects of dietary resveratrol supplementation during pregnancy and lactation on the antioxidant status of sows and piglets and on antioxidant gene expression and pathway in placenta.Methods: Forty sows were allotted to 2 dietary treatments 20 d after breeding. Sows were fed a control diet and a control diet with 300 mg/kg resveratrol. Oxidative stress biomarkers and antioxidant enzymes were measured in the placenta, milk, and plasma of sows and piglets. Antioxidant gene expression and protein expression of Kelch-like ECH-associated protein 1-Nuclear factor E2-related factor 2(Keap1-Nrf2), nuclear factor kappa B-p65(NFκB-p65) and sirtuin1(Sirt1) were quantified in the placenta.Results: Dietary resveratrol increased the litter and piglets weaning weights. Antioxidant status in the milk, placenta and plasma of sows and piglets was partially improved by dietary resveratrol. In placenta, Nrf2 protein expression was increased and Keap1 protein expression was decreased by dietary resveratrol. The m RNA expression of antioxidant genes including catalase(CAT), glutathione peroxidase 1(GPX1), GPX4, superoxide dismutase 1(SOD1)and heme oxygenase 1(HO1), and phase 2 detoxification genes, including glutamate-cysteine ligase modifier(GCLM), microsomal glutathione S-transferase 1(MGST1) and UDP glucuronosyltransferase family 1 member A1(UGT1 A1), was increased by dietary resveratrol. Dietary resveratrol also increased Sirt1 and phosphorylated NFκB-p65 protein expression in the placenta. We failed to observe any influences of dietary resveratrol on pro-inflammatory cytokine levels, including those of interleukin 1β(IL-1β), IL-6, IL-8 and tumor necrosis factor α(TNF-α). However, we observed that the m RNA expression of IL-8 in placenta was reduced by maternal resveratrol. In addition, dietary resveratrol showed interactive effects with day of lactation on activities of SOD and CAT and levels of malonaldehyde(MDA) and hydrogen peroxide(H2 O2) in milk.Conclusions: Dietary resveratrol supplementation during pregnancy and lactation improves the antioxidant status of sows and piglets, which is beneficial to the reproductive performance of sows. Dietary resveratrol regulates placental antioxidant gene expression by the Keap1-Nrf2 pathway and Sirt1 in placenta.Qingwei Meng Tao Guo Gaoqiang Li Shishuai Sun Shiqi He Baojing Cheng Baoming Shi Anshan Shan 2018Journal of Animal Science and Biotechnology2018,9,3:33
3The p53-induced lincRNA-p21 derails somatic cell reprogramming by sustaining H3K9me3 and CpG methylation at pluripotency gene promoters显示文摘最近的研究在众多的生物过程增加了我们长 noncoding RNA (lncRNAs ) 的理解,但是很少在体的房间 reprogramming 检验了他们的角色。通过表示介绍并且功能的屏蔽,我们鉴别了大 intergenic noncoding RNA p21 (lincRNA-p21 ) 损害 reprogramming。尤其是, lincRNA-p21 被 p53 导致,但是不在 reprogramming 支持 apoptosis 或房间老朽。相反, lincRNA-p21 与 H3K9 methyltransferase SETDB1 和维护 DNA methyltransferase DNMT1 联系,它被 RNA 有约束力的蛋白质 HNRNPK 便于。因而, lincRNA-p21 由在 pluripotency 基因倡导者支撑 H3K9me3 或 CpG methylation 阻止 reprogramming。我们的结果在 reprogramming 提供卓见进 lncRNAs 的角色并且建立在 p53 和 heterochromatin 规定之间的一个新奇连接。Xichen Bao Haitao Wu Xihua Zhu Xiangpeng Guo Andrew P Hutchins Zhiwei Luo Hong Song Yongqiang Chen Keyu Lai Menghui Yin Lingxiao Xu Liang Zhou Jiekai Chen Dongye Wang Baoming Qin Jon Frampton Hung-Fat Tse Duanqing Pei Huating Wang Biliang Zhang Miguel A Esteban 2015Cell Research2015,25,1:21
4Orthogonal analysis of water model study on the optimization of flow control devices in a six-strand tundish显示文摘Improper flow control devices in a multi-strand tundish can cause some problems, for example, liquid steel cannot reach every nozzle at the same time and the liquid steel in nozzles far away from the entry zone has a lower temperature. The water model experiment of a six-strand tundish of Tianjin Iron & Steel Co. Ltd. was performed, a new 'U' type baffle was obtained, and its parameters were defined by perpendicular analysis. The 'U' baffle can not only improve those imperfections, but also prolong the residence time of nonmetallic inclusions, which is good for their flotation and separation.Zhengyan Wei Yanping Bao Jianhua Liu Wenxu Gong Baoming Wang 2007Journal of University of Science and Technology Beijing2007,14,2:18
5Effect of dietary supplementation with protease on growth performance,nutrient digestibility, intestinal morphology, digestive enzymes and gene expression of weaned piglets显示文摘This study was conducted to investigate the effect of dietary protease supplementation on the growth performance, nutrient digestibility, intestinal morphology, digestive enzymes and gene expression in weaned piglets. A total of 300 weaned piglets(21 days of age Duroc x Large White x Landrace; initial BW = 6.27 ± 0.45 kg) were randomly divided into 5 groups. The 5 diets were: 1) positive control diet(PC), 2) negative control diet(NC), and 3) protease supplementations, which were 100, 200, and 300 mg per kg NC diet. Results indicated that final BW, ADG, ADFI, crude protein digestibility, enzyme activities of stomach pepsin, pancreatic amylase and trypsin, plasma total protein, and intestinal villus height were higher for the PC diet and the supplementations of 200 and 300 mg protease per kg NC diet than for the NC diet(P < 0.05). Supplementations of 200 and 300 mg protease per kg NC diet significantly increased the ratio of villus height to crypt depth(VH:CD) of duodenum, jejunum and ileum compared with NC diet(P < 0.05). Feed to gain ratio, diarrhea index, blood urea nitrogen, and diamine oxidase were lower for the PC diet and supplementations of 200 and 300 mg protease per kg NC diet than for the NC diet(P < 0.05). Piglets fed the PC diet had a higher peptide transporter 1(PepTl) mRNA abundance in duodenum than piglets fed the NC diet(P < 0.05), and supplementations of 100, 200 and 300 mg protease per kg NC diet increased the PepTl mRNA abundance in duodenum(P < 0.05) comparing with the NC diet. Piglets fed the PC diet had a higher b0,+AT mRNA abundance in jejunum than piglets fed the NC diet(P < 0.05), and supplementations of 200 and 300 mg protease per kg NC diet increased the b0,+AT mRNA abundance in jejunum and ileum comparing with the NC diet(P < 0.05). In summary, dietary protease supplementation increases growth performance in weaned piglets, which may contribute to the improvement of intestinal development, protein digestibility, nutrient transport efficiency, and health status of piglets when fed low digestible protein sources.Jianjun Zuo Baoming Ling Lina Long Tiejun Li Ludovic Lahaye Chengbo Yang Dingyuan Feng 2015Animal Nutrition2015,,4:18
6The experiment of monthly mean circulation prediction using the analogy-dynamical model显示文摘Based on the past related research work,a new analogy-dynamical monthly predic- tion model is established with the operational dynamic extended-range forecast model T63L16 (hereafter T63) as a dynamic kernel.The monthly mean circulation predicition with T63 is considered as a control experiment,and the prediction with the analogy-dynamical model as a contrast one.It is found that the anal- ogy-dynamical model has more precise forecast skill than the T63 model through monthly mean numerical prediction experiment.BAOMing NIYunqi CHOUJifan 2004Chinese Science Bulletin2004,49,12:12
7长春地区轮状病毒流行株VP7基因的遗传变异显示文摘A组轮状病毒是引起婴幼儿秋冬季病毒性腹泻的主要病原。目前没有有效的治疗药物,应用安全而有效的疫苗是控制重症腹泻的首要措施。对当地A组轮状病毒流行株的主要中和抗原VP7的编码基因进行遗传变异分析,可以为疫苗的应用和开发提供有益的指导。利用ELISA方法对长春地区1999~2005年的腹泻患儿标本检测A组轮状病毒,RT-PCR方法对阳性标本进行G血清分型,发现长春地区2001年以后流行的轮状病毒以G3型血清为主。选取1999~2005年的G3型轮状病毒标本31份,对其VP7基因进行扩增、克隆、测序,经过计算机分析比对,31株G3型轮状病毒VP7基因核苷酸序列没有显著差异。同一流行季节的毒株具有较相似的遗传变异特征。在2003年轮状病毒流行季节内,有6株G3型分离株的VP7基因在碱基1038位置上出现一个碱基缺失。毒株发生在A、B、C三个高变区的碱基突变,位点相同或者位置临近。2002年以后毒株的基因突变增加,非高变区的碱基变异增加,这可能有助于维持G3型轮状病毒成为流行株。有规律的变异多发生在高变区,但是非高变区的非连续性变异的增加值得引起注意。王端可 章青 孙利炜 王承训 段招军 Xi Jiang Baoming Jiang 方肇寅 2008病毒学报2008,24,1:10
8Microscopic inspection and tracking of single upconversion nanoparticles in living cells显示文摘Nanoparticles have become new tools for cell biology imaging1,sub-cellular sensing2,super-resolution imaging3,4 and drug delivery5.Long-term 3D tracking of nanoparticles and their intracellular motions have advanced the understanding of endocytosis and exocytosis as well as of active transport processes6–8.The sophisticated operation of correlative optical-electron microscopy9,10 and scientific-grade cameras is often used to study intercellular processes.Nonetheless,most of these studies are still limited by the insufficient sensitivity for separating a single nanoparticle from a cluster of nanoparticles or their aggregates8,11,12.Here we report that our eyes can track a single fluorescent nanoparticle that emits over 4000 photons per 100 milliseconds under a simple microscope setup.By tracking a single nanoparticle with high temporal,spectral and spatial resolution,we show the measurement of the local viscosity of the intracellular environment.Moreover,beyond the colour domain and 3D position,we introduce excitation power density as the fifth dimension for our eyes to simultaneously discriminate multiple sets of single nanoparticles.Fan Wang Shihui Wen Hao He Baoming Wang Zhiguang Zhou Olga Shimoni Dayong Jin 2018Light(Science & Applications)2018,7,1:9
9How does tree age influence damage and recovery in forests impacted by freezing rain and snow?显示文摘The response and recovery mechanisms of forests to damage from freezing rain and snow events are a key topic in forest research and management. However, the relationship between the degree of damage and tree age, i.e., whether seedlings, young trees, or adult trees are most vulnerable, remains unclear and is rarely reported. We investigated the effect of tree age on the degrees of vegetation damage and subsequent recovery in three subtropical forest types-coniferous, mixed, and broad-leaved —in the Tianjing Mountains, South China, after a series of rare icy rain and freezing snow events in 2008. The results showed that damage and recovery rates were both dependent on tree age, with the proportion of damaged vegetation increasing with age(estimated by diameter at breast height, DBH) in all three forest types and gradually plateauing. Significant variation occurred among forest types. Young trees in the coniferous forest were more vulnerable than those in the broad-leaved forest. The type of damage also varied with tree age in different ways in the three forest types. The proportion of young seedlings that were uprooted(the most severe type of damage) was highest in the coniferous forest. In the mixed forest, young trees were significantly more likely to be uprooted than seedlings and adult trees, while in the broad-leaved forest, the proportion of uprooted adult trees was significantly higher than that of seedlings and young trees. There were also differences among forest types in how tree age affected damage recovery. In the coniferous forest, the recovery rate of trees with broken trunks or crowns(DBH > 2.5 cm) increased with tree age. However, in the mixed and broad-leaved forests, no obvious correlation between the recovery rate of trees with broken trunks or crowns and tree age was observed. Trees with severe root damage did not recover; they were uprooted and died. In these forests, vegetation damage and recovery showed tree age dependencies, which varied with tree shape, forest type, and damage type. Understanding this dependency will guide restoration after freezing rain and snow disturbances.ZHU LiRong ZHOU Ting CHEN BaoMing PENG ShaoLin 2015Science China(Life Sciences)2015,58,5:8
10Optimization of slightly acidic electrolyzed water spray for airborne culturable bacteria reduction in animal housing显示文摘Slightly acidic electrolyzed water(SAEW)spray has been considered as a novel approach for airborne bacteria reduction in animal housing.This study aimed to optimize the operating parameters of SAEW spray based on the size distribution of sprayed aerosols,the available chlorine travelling loss in sprayed aerosols,and the reduction efficiency of airborne culturable bacteria(CB).The optimized operating parameters were the nozzle orifice diameter and the spray pressure.The size distribution characteristics of sprayed SAEW aerosols under different operating parameters were quantified.The pH and available chlorine concentrations of the original SAEW solution and the SAEW aerosols collected at 0 m,0.25 m,0.50 m,0.75 m,and 1.00 m from the spray nozzle head were analyzed.A bioaerosol nebulizing generator was used to simulate animal housing environment in an environmentally-controlled chamber.Six SAEW spray trials under different operating parameters were conducted at a spray dosage of 80 mL/m2 in the chamber.Airborne CB concentrations before and after spray were measured to investigate the reduction efficiency of airborne CB.Dv(50),the volume-based diameter below which 50%of the particle being present,increased with the nozzle orifice diameter and decreased with the spray pressure.The travelling loss of available chlorine in the sprayed SAEW aerosols was greatly dependent on Dv(50).SAEW spray with medium size sprayed aerosols(Dv(50)=86.62μm,67.94μm,and 54.53μm)showed significantly higher airborne CB reduction efficiencies than large(Dv(50)=121.80μm and 96.00μm)or small size aerosols(Dv(50)=42.57μm).The spray operating parameters that provide medium size sprayed aerosols(Dv(50)~60-90μm)are recommended for SAEW spray in animal housing.Zheng Weichao Ni Li Hui Xue Li Baoming Zhang Jiafa 2016International Journal of Agricultural and Biological Engineering2016,9,4:7
11Electrolyzed water and its application in animal houses显示文摘Electrolyzed water(EW) can be produced by electrolysis of a dilute salt solution. Slightly acidic electrolyzed water(SAEW, p H 5.0–6.5) and neutral electrolyzed water(NEW, p H 6.5–8.5) are considered healthy and environmentally friendly because no hazardous chemicals are added in its production, there is reduced corrosion of surfaces and it minimizes the potential for damage to animal and human health. Over the last decade, EW has become increasingly popular as an alternative disinfectant for decontamination in animal houses. However, there have been some issues related to EW that are not well known, including different mechanisms for generation of SAEW and NEW, and the antimicrobial mechanism of EW. This review covers the definitions of SAEW and NEW, different generation systems for SAEW and NEW, the antimicrobial mechanism of EW, and recent developments related to the application of SAEW and NEW in animal houses.Weichao ZHENG Li NI Baoming LI 2016Frontiers of Agricultural Science and Engineering2016,3,3:6
12Advanced continuous phase modulation for high mobility communications显示文摘This paper focuses on the design of continuous phase-modulated systems and simplified receiver for highmobility wireless communications.A class of spectrally efficient coded modulation systems is proposed and analyzed in terms of Euclidean distance and spectral efficiency.Moreover,the simplified detector based on mismatched receiver is designed to reduce the detection complexity exponentially for partial response systems.To deal with the fast time-varying channels without channel state information,a class of noncoherent detection algorithms for continuous phase modulation systems is developed to offer near-coherent performance.The proposed system is assessed over both the additive white Gaussian noise and fast-fading channels.Numerical and simulated results show that the proposed system offers not only high spectral efficiency but also near-optimum performance over fast time-varying scenarios.Bing Li Baoming Bai Tor Aulin Qi Li 2014Chinese Science Bulletin2014,59,35:5
13Sustainable utilization of biological resources from coastal wetlands in China显示文摘The main utilization of biological resources from coastal wetlands in China and the major limiting factors on sustainable utilization of these resources are reviewed. Strategies for the sustainable utilization of coastal wetlands are proposed. These include further studies on saline agriculture and wetland ecosystems, optimizing methods for maximizing metabolic production from organisms, developing microbial resources and efficient utilization of biological genetic resources, and exploiting bioenergy from coastal wetlands.TANG BoPing ZHANG DaiZheng GE BaoMing ZHANG HuaBin 2013Chinese Science Bulletin2013,58,19:5
14Transcriptome analysis of the effect of pyrroloquinoline quinone disodium(PQQ·Na2) on reproductive performance in sows during gestation and lactation显示文摘Background: Pyrroloquinoline quinone(PQQ), which is a water soluble, thermo-stable triglyceride-quinone, is widely distributed in nature and characterized as a mammalian vitamin-like redox cofactor. The objective of this study was to investigate the effects of pyrroloquinoline quinone disodium(PQQ·Na2) on reproductive performance in sows.Results: Dietary supplementation with PQQ·Na2 significantly increased the total number of piglets born, the number of piglets born alive and the born alive litter weight. It also increased the antioxidant status in the placenta, plasma and milk. The concentration of NO was significantly increased in the plasma and placenta. RNA-seq analysis showed that462 unigenes were differentially expressed between the control(Con) treatment and PQQ treatment groups.Among these unigenes, 199 were upregulated, while 263 unigenes were downregulated. The assigned functions of the unigenes covered a broad range of GO categories. Reproduction(27, 7.03%) and the reproduction process(27, 7.03%) were assigned to the biological process category. By matching DEGs to the KEGG database, we identified 29 pathways.Conclusions: In conclusion, dietary supplementation with PQQ·Na2 in gestating and lactating sows had positive effects on their reproductive performance.Boru Zhang Chenxi Wang Wei Yang Hongyun Zhang Qingwei Meng Baoming Shi Anshan Shan 2019Journal of Animal Science and Biotechnology2019,10,4:5
15Effects of lead exposure on placental cellular apoptosis and endoplasmic reticulum stress in rats显示文摘Wang Yunying Hu Haiyan Li Hong Ma Haiyan Xu Fengsen Qu Baoming 2014Chinese Medical Journal2014,,9:4
16Nutrient resorption strategies of three oak tree species in response to interannual climate variability显示文摘Background:Nutrient resorption is critical for plants toward balancing their nutritional requirements and adapting to environmental variabilities,which further impacts litter quality and nutrient cycling.However,the interannual variability of nutrient resorption under climate change remains unclear.Methods:We investigated the five-year nutrient resorption efficiencies(NuRE,%)of 14 elements in three deciduous oak tree species(Quercus aliena var.acuteserrata,Q.glandulifera,and Q.variabilis)in a warm-temperate forest of Central China and assessed their relationships with interannual climate and soil factors.Results:Nutrient resorption did not differ between species but varied significantly between different years.For each year,N,P,S,K,C,Mg,and Zn were preferentially resorbed in all of the oak species in contrast to Ca,Na,Mn,Ba,Al,Fe,Cu,which were to some extent discriminated.Among the 14 elements,the NuRE of C,N,P,S,Ca,and Mg was more sensitive to interannual climate variations in the three oak species.The carbon resorption efficiency was significantly increased during the driest year of the study(2014);N resorption efficiency was reduced with temperature;whereas N and P resorption efficiency initially decreased and then increased with precipitation.Moreover,the elements with higher NuREs typically had lower coefficient of variation(CV)in all three oak species.Conclusions:Different oak species exhibited analogous nutrient conservation strategies in response to annual climate variabilities,and interannual climate variations strongly impacted plant nutrient resorption.Deciduous plants may establish a tradeoff mechanism to rebalance somatic nutrients for regrowth at the end of the growing season.Baoming Du Huawei Ji Shirong Liu Hongzhang Kang Shan Yin Chunjiang Liu 2021Forest Ecosystems2021,8,4:4
17Development of highly glyphosate-tolerant tobacco by coexpression of glyphosate acetyltransferase gat and EPSPS G2-aroA genes显示文摘The widely used herbicide glyphosate targets 5-enolpyruvylshikimate-3-phosphate synthase(EPSPS).Glyphosate acetyltransferase(GAT)effectively detoxifies glyphosate by N-acetylation.With the aim of identifying a new strategy for development of glyphosate-tolerant crops,the plant expression vector pG2-GAT harboring gat and G2-aroA(encoding EPSPS)has been transformed into tobacco(Nicotiana tabacum)to develop novel plants with higher tolerance to glyphosate.Results from Southern and Western blotting analyses indicated that the target genes were integrated into tobacco chromosomes and expressed effectively at the protein level.Glyphosate tolerance was compared among transgenic tobacco plants containing gat,G2-aroA,or both genes.Plants containing both gat and G2-aroA genes were the most glyphosate-tolerant.This study has shown that a combination of different strategies may result in higher tolerance in transgenic crops,providing a new approach for development of glyphosate-tolerant crops.Baoqing Dun Xujing Wang Wei Lu Ming Chen Wei Zhang Shuzhen Ping Zhixing Wang Baoming Zhang Min Lin 2014The Crop Journal2014,2,Z1:4
18Low temperature annealing of metals with electrical wind force effects显示文摘Conventional annealing is a slow, high temperature process that involves heating atoms uniformly, i.e., in both defective and crystalline regions. This study explores an electrical alternative for energy efficiency,where moderate current density is used to generate electron wind force that produces the same outcome as the thermal annealing process. We demonstrate this on a zirconium alloy using in-situ electron back scattered diffraction(EBSD) inside a scanning electron microscope(SEM) and juxtaposing the results with that from thermal annealing. Contrary to common belief that resistive heating is the dominant factor, we show that 5 × 10~4 A/cm^2 current density can anneal the material in less than 15 min at only135?C. The resulting microstructure is essentially the same as that obtained with 600?C processing for360 min. We propose that unlike temperature, the electron wind force specifically targets the defective regions, which leads to unprecedented time and energy efficiency. This hypothesis was investigated with molecular dynamics simulation that implements mechanical equivalent of electron wind force to provide the atomistic insights on defect annihilation and grain growth.Daudi Waryoba Zahabul Islam Baoming Wang Aman Haque 2019Journal of Materials Science & Technology2019,35,4:4
19Effect of cooling pad installation on indoor airflow distribution in a tunnel-ventilated laying-hen house显示文摘Extra cooling pads on the sidewalls are needed for larger poultry houses using tunnel ventilation system.Preliminary study showed that the airflow velocity going through different aisles varies greatly when the extra pads are installed at the end of sidewalls,making a“[”-shape air inlet.Combined with field tests,the CFD(computational fluid dynamics)technology was used to study the uniformity of airflow distribution in a tunnel-ventilated laying-hen house.The air distribution was first monitored in a layer house to find the main reason resulting in the variations of airflows in different aisles.Then CFD simulations were carried out with different distances(D=2 m,3 m or 4 m)between the pads on end-wall and the extra pads on side walls.The field test showed that airflow streams from the different groups of cooling pads collided vertically at the house corners,mixed with each other,then flew towards the center of the house.This was the main reason that the wind speed in the middle aisle was much higher than in other aisles,leaving large zones of lower ventilation in the aisles adjacent to the sidewalls.The results of CFD simulations indicated that air distributions could be significantly improved when the extra pieces of pads were moved away for an appropriate distance from the end coolingpads.As far as conventional poultry house with a span of 12 m,the air speeds in different aisles were more uniform when this distance was about 3 m.Hui Xue Zhu Qiang Ji-Qin Ni Li Baoming Shi Zhengxiang Zhao Shumei Wang Yu 2016International Journal of Agricultural and Biological Engineering2016,9,4:4
20Effects of Chinese herbs on lactation of rat and performance of offspring显示文摘An experiment was conducted to study the effects of different Chinese herbs on lactation in the rat. Seventy-two Sprague Dawley female rats at gestation day 18 were assigned to 9 groups randomly, with 8 rats each. Control rats were offered basal diets until the end of the weaning period. Rats in the other 8 groups were administered diets supplemented with 1% Medulla tetrapanacis (MT), Astragalus membranacens(AM), Vaccaria segetalis(VS), Leonurus heterophyllus sweet (LHS), Radix rehmanniae preparata (RRP), Squama manitis (SM), Schisandra chinensis (SC), Ligustrum lucidum (LL), respectively. After parturition, the litter size was culled to 8 pups per dam. Pup weight and milk yield were significantly higher in the VS, LHS, AM and SM groups than these in the control group during middle and late lactation (P<0.05 or P<0.01). The weight and feed intake were not different in the dams fed either diet.SHI Baoming SHAN Anshan 2007Journal of Northeast Agricultural University(English Edition)2007,14,1:3
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