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Effects of dietary fiber and threonine on performance,intestinal morphology and immune responses in broiler chickens

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Animal Nutrition 2019年第3期5卷 248-255页

作者： Nasim Saadatmand Majid Toghyani Abasali Gheisari department of Animal Science Isfahan(Khorasgan)BranchIslamic Azad UniversityIsfahan81595-158Iran Animal Science Research department Isfahan Agricultural and Natural Resources Research and Education CenterAgricultural ResearchEducation&Extension Organization(AREEO)Isfahan81785-199Iran

The present experiment was conducted to investigate the effects of fiber and threonine(Thr)on growth performance,intestinal morphology and immune responses of broiler chickens.A total of 420 one-dayold mixed sex broiler chicks(Ross 308)were randomly divided into 6 experimental diets and 5 replicates of 14 chicks based on a factorial arrangement(2 × 3)from 1 to 42 d of *** factors included dietary supplemental fiber type(no supplemental fiber[NSF],30 g/kg sugar beet pulp[SBP]or 30 g/kg rice hull[RH])and Thr inclusion level(100% or 110% of Thr requirement recommended by breeder company[Ross 308]).Growth performance of broilers was assayed at different periods of the *** morphometric features were measured at 21 d of *** titer against sheep red blood cells(SRBC),Newcastle and influenza disease viruses were measured on d 30 of *** inclusion of SBP and RH significantly decreased feed intake and weight gain during the entire rearing period(P<0.05).Interaction of fiber and Thr had no beneficial effects on the performance of chickens across the entire rearing *** supplementation of 110% Thr required level improved jejunal morphometric features(P<0.05),whereas its inclusion with fibrous materials failed to show the same *** supplemental Thr together with SBP significantly increased antibody production against SRBC(P<0.05).In conclusion,although supplemental 30 g/kg fibrous materials impaired growth performance,inclusion of SBP along with 110% Thr level improved the humoral immunity in broiler chickens.

关键词： Broiler chickens Fiber Threonine Weight gain Antibody titer

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Evaluation of Genotype × Environment Interaction in Rice Based on AMMI Model in Iran

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Rice science 2017年第3期24卷 173-180页

作者： Peyman SHARIFI Hashem AMINPANAH Rahman ERFANI Ali MOHADDESI Abouzar ABBASIAN department of Agronomy and Plant Breeding Rasht Branch Islamic Azad University Rasht 41476-54919 Iran Rice Research Institute of Iran Agricultural Research Education and Extension Organization Amol 91951-46191 Iran Rice Research Station of Iran Agricultural Research Education and Extension Organization Tonekabon 13475-41996 Iran Young Researchers and Elite Club Rasht Branch Islamic Azad University Rasht 41476-54919 Iran

Identification of high-yielding stable promising rice lines and determination of suitable areas for rice lines would be done by additive main effects and multiplicative interaction(AMMI) model. Seven promising rice genotypes plus two check varieties Shiroudi and 843 were analyzed using a randomized complete block design with three replications in three consecutive years(2012, 2013 and 2014). Homogenous error variance was indicated in the nine environments for grain yield. The combined analysis of variance indicated significant effects of environment, genotype and genotype × environment(GE) interactions on grain yield. The significant effect of GE interaction reflected on the differential response of genotypes in various environments and demonstrated that GE interaction had remarkable effect on genotypic performance in different environments. The application of AMMI model for partitioning the GE interaction effects showed that only the first two terms of AMMI were significant based on Gollob's Ftest. The lowest AMMI-1 was observed for G7, G2 and G6. G7 and G6 had higher grain yield. According to the first eigenvalue, which benefits only the first interaction principal component scores, G1, G6, G2 and G9 were the most stable genotypes. The values of the sum of first two interaction principal component scores could be useful in identifying genotype stability, and G6, G5 and G2 were the most dynamic stable genotypes. AMMI stability value introduced G6 as the most stable one. According to AMMI biplot view, G6 was high yielding and highly stable genotype. In conclusion, this study revealed that GE interactions were an important source of rice yield variation, and its AMMI biplots were forceful for visualizing the response of genotypes to environments.

关键词： biplot grain yield GE interaction multi-environment trial stability

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Quality control of the parasitoid wasp Trichogramma brassicae (Hymenoptera: Trichogrammatidae) over 45 generations of rearing on Sitotroga cerealella

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Insect Science 2021年第1期28卷 180-190页

作者： Ehsan Ghaemmaghami Yaghoub Fathipour Abdoolnabi Bagheri Ali Asghar Talebi Gadi V.P.Reddy department of Entomology Faculty of AgricultureTarbiat Modares UniversityTehranIran Plant Protection Research department Hormozgan Agricultural and Natural Resources Research and Education CenterAgricultural Research Education and Extension Organization(AREEO)Bandar AbbasIran USDA-ARS-Southern Insect Pest Management Research Unit StonevilleMississippiUSA

Trichogramma brassicae(Bezdenko)is an important biological control agent that has been used widely against many lepidopteran ***,colonies of Trichogramma are mass reared on factitious hosts such as Sitotroga cerealella(Olivier)over many *** this study,we evaluated the quality and performance of a colony of *** that had been reared for over 45 generations(G)using two-sex life table parameters and parasitism *** found that female adult longevity was significantly different among sequential generations,ranging from 5.58±2.5 d(at G5)to 3.75±1.42 d(at G45).However,no significant difference was found in male adult longevity among different *** female wasps survived longer until the 15th gener・ation,they allocated more days for egg laying at G5 and *** highest values of gross reproductive rate(GRR),net reproductive rate(7.),intrinsic rate of increase(r),finite rate of increase(λ)and mean generation time(T)were found in G5 and GIO,which also showed significantly higher *** significant difference in the finite parasitism rate(co)was found among generations up to *** results suggest that *** wasps held under continuous laboratory rearing can be used successfully in biological control programs until the 15th generation without any loss of quality or ***,laboratory mass rearing colonies declined in quality after 15 generations and we suggest that they should be rejuvenated regularly by adding field-collected parasitoids periodically.

关键词： biological control generation-dependent demography mass rearing parasitism rate Trichogramma brassicae

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Identification and fine mapping of quantitative trait loci for seed vigor in germination and seedling establishment in rice

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Journal of Integrative Plant Biology 2014年第8期56卷 749-759页

作者： Lixia Xie Zhengwei Tan Yuan Zhou Rongbao Xu Laibao Feng Yongzhong Xing Xiaoquan Qi Key Laboratory of Plant Molecular Physiology Institute of Botany the Chinese Academy of Sciences University of Chinese Academy of Sciences department of continuing education Shandong Television University National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University

Seed vigor is an index of seed quality that is used to describe the rapid and uniform germination and the establish- ment of strong seedlings in any environmental conditions. Strong seed vigor in low-temperature germination conditions is particularly important in direct-sowing rice production systems. However, seed vigor has not been selected as an important breeding trait in traditional breeding programs due to its quantitative inherence. In this study, we identified and mapped eight quantitative trait loci （QTLs） for seed vigor by using a recombinant inbred population from a cross between rice （Oryza sativa L. ssp. indica） cultivars ZS97 and MH63. Conditional QTL analysis identified qSV-1, qSV-Sb, qSV-6a, qSV- 6b, and qSV-11 influenced seedling establishment and that qSV- 5a, qSV-Sc, and qSV-8 influenced only germination. Of these, qSV-1, qSV-Sb, qSV-6a, qSV-6b, and qSV-8 were low-tempera- ture-specific QTLs. Two major-effective QTLs, qSV-1, and qSV-5cwere narrowed down to 1.13-Mbp and 4oo-kbp genomic regions, respectively. The results provide tightly linked DNA markers for the marker-assistant pyramiding of multiple positive alleles for increased low-temperature germination seed vigor in both normal and environments.

关键词： Conditional quantitative trait locus mapping germination seedling establishment seed vigor rice

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Incremental adaptation strategies for agricultural water management under water scarcity condition in Northeast Iran

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Regional Sustainability 2021年第3期2卷 224-238页

作者： Morteza SALMANI SABZEVAR Amirreza REZAEI Bagher KHALEGHI department of Agricultural extension and education College of Agricultural Economics and DevelopmentUniversity of TehranKaraj***Iran department of Forestry and Forest Economics University of TehranKaraj***Iran

Population growth and climate changes as two synergistic phenomena have damaged water resources nationwide and *** water resources available for agriculture is one of the most critical limiting factors in food production enhancement in *** must tackle the challenge of supplying the increasing demands for food due to population *** this purpose,we must get acquainted with how farmers make decisions and their adaptations to water scarcity conditions by studying their adaptation *** this case,we can predict the farmers’behaviors by recognizing the optimal adaptation strategies under water scarcity *** study aims to provide a model to examine and analyze the farmers’behaviors in the realm of water scarcity and the contributing factors to it,facilitating a better understanding of the potential implications of such scarcity,introducing the adaptation changeability procedures for agricultural water management and assistance to farmers to adapt,and developing the actions for mitigating the vulnerability of agriculture sector in *** this study,175 farmers in Northeast Iran were interviewed to conduct an applied research by questionnaire *** research tool was a researcher-made questionnaire designed based on the theoretical literature and designed *** to the research,the model of incremental adaptation strategies could determine the effects of a set of psychological and socioeconomic factors and the formation of adaptation decisions in water resources management under water scarcity *** results indicated that the concern and attitude,farmers’knowledge and technical skill,self-efficiency and risk-taking level,social capital and information availability for farmers,and the internal norm are significantly and positively correlated in this *** results provide a proper understanding of farmers’sustainable decision-making and a perspective on contributing factors to the strategy framework and im

关键词： Agricultural water management Incremental adaptation strategies Water scarcity Climate change Northeast Iran

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New Matrix Loop Algebra and Its Application

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Communications in Theoretical Physics 2008年第8期50卷 321-325页

作者： DONG Huan-He XU Yue-Cai College of Information Science and Engineering Shandong University of Science and Technology Qingdao 266510 China College of continuing education Shangdong University of Science and Technology Taian 271000 China

A new matrix Lie algebra and its corresponding Loop algebra are constructed firstly,as its application,the multi-component TC equation hierarchy is obtained,then by use of trace identity the Hamiltonian structure of the above system is ***,the integrable couplings of the obtained system is worked out by the expanding matrix Loop algebra.

关键词： matrix loop algebra Liouville integrable system Hamiltonian structure integrable couplings

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脆性材料I型(张开)-断裂韧性测定的PFC2D和试验研究:一种新方法

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Acta Mechanica Sinica 2024年第2期40卷 116-130页

作者：付金伟 Hadi Haeri Joseph FLabuz Vahab Sarfarazi Pouyan Ebneabbasi MRM Aliha Hamid Reza Karimi Shirin Jahanmiri Mohammad Fatehi Marji School of Civil Engineering and Transportation North China University of Water Resources and Electric PowerZhengzhou450046China department of Mining Engineering Higher Education Complex of ZarandShahid Bahonar University of KermanKermanIran department of Civil Environmentaland Geo-EngineeringUniversity of MinnesotaMinneapolis55455USA department of Mining Engineering Hamedan University of TechnologyHamedanIran Research Scholar Civil Engineering DepartmentIslamic Azad UniversityHamedanIran Welding and Joining Research Center School of Industrial EngineeringIran University of Science and TechnologyNarmakTehranIran School of Civil Engineering Iran University of Science and Technology(IUST)NarmakTehranIran department of Mine Exploitation Engineering Faculty of Mining and MetallurgyInstitute of EngineeringYazd UniversityYazdIran

在本文研究中,通过利用优势边缘缺口盘型(END)试样,确定了石灰石的断裂韧性,提出了一种新的石灰石归一化相应力、高相变的计算方法.采用柔性有限元法(FEM)对试样的I型(张开)-断裂韧性进行了精确计算,并得到了相应实用公式.在试验中,还... 详细信息

在本文研究中,通过利用优势边缘缺口盘型(END)试样,确定了石灰石的断裂韧性,提出了一种新的石灰石归一化相应力、高相变的计算方法.采用柔性有限元法(FEM)对试样的I型(张开)-断裂韧性进行了精确计算,并得到了相应实用公式.在试验中,还使用含缺口巴西圆盘(NBD)试件,测试了END程序的准确性.为了在数值上重现这些测试并验证断裂韧性测量的正确性,还对END测试进行了离散元分析.数值模拟结果与实验结果吻合良好.然而,END研究所确定的韧性水平低于NBD测试规定的韧性水平,这是因为END石灰石样品中的缺口具有均匀的拉伸应力分布.

关键词：断裂韧性脆性材料实用公式拉伸应力巴西圆盘离散元分析相变归一化

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An integrated quantitative proteomics strategy reveals the dual mechanisms of celastrol against acute inflammation

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Chinese Chemical Letters 2021年第7期32卷 2164-2168页

作者： Guangshan Xiea Lin Zhu Yuanyuan Song Wei Huang Di Hu Zongwei Cai State Key Laboratory of Environmental and Biological Analysis Department of ChemistryHong Kong Baptist UniversityHong KongChina Shenzhen Research Institute and continuing education Hong Kong Baptist University.Shenzhen 518000China

Inflammation is a defense mechanism associated with a wide range of *** is a small molecule isolated from traditional Chinese medicine with potent anti-inflammation *** this study,we established an integrated quantitative proteomics strategy to investigate the acute response to celastrol treatment in a rat macrophage cell line challenged with lipopolysaccharide(LPS).Both stableisotopic based non-targeted quantitative profiling and PRM-based targeted quantitation methods were ***-labeling based non-targeted profiling revealed 28 and 52 proteins that significantly up-and down-regulated by *** analysis pinpoint key signaling pathways *** proteins were selected for examining their time-dependent regulatory pattern in response to celastrol using targeted PRM *** abundance of mRNA at multiple time-points of selected proteins was also *** induced an acute response of selected key transcriptional factors in terms of mRNA or protein abundance within one ***,regulatory trend of mRNA and protein abundance suggested a novel dual mechanism of celastrol in the terms of acute *** integrated quantitative proteomic strategy established in this study constitutes an efficient workflow to characterize key components and their time-dependent regulatory pattern for monitoring drug response.

关键词： Integrated quantitative proteomics Dual mechanisms Celastrol Acute inflammation

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Solute mixing in a permeable non-rectangular channel

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International Journal of Sediment Research 2020年第2期35卷 134-145页

作者： Sonia Zebardast Sayyed-Hassan Tabatabaei Fariborz Abbasi Manuchehr Heidarpour department of Water Engineering Faculty of AgricultureShahrekord University Agricultural Engineering Research Institute (AERI) Agricultural ResearchEducation and Extension Organization (AREEO) 3. Department of Water EngineeringCollege of AgricultureIsfahan University of Technology

Understanding diffusion and solute transport,is regarded as a main activity in environmental management,sustainable development and sedimentation processes because of their role in diffusion of *** current paper presents an experimental study which was done in a parabolic channel with permeable and impermeable bed conditions in order to estimate the transverse mixing coefficient(TMC) and the maximum solute mixing length(SML) for different channel bed roughness coefficients and *** cross section of the channel was 0.5 m wide and 0.3 m deep with a parabolic shape(*** to furrow irrigation).Three levels of bed roughness coefficient of 0.02,0.04,and 0.06,and three discharges of 5,10,and 15 L/s were *** infiltration channel was applied at a low level and medium level as well as a case without *** the current experiments,sodium chloride was used as a soluble tracer and was injected into the water at mid depth in the upstream cross *** tracer concentration profile in the water and velocity profile were measured at eight cross sections in the *** results showed that the values of SML ranged between 20 and 46 m in impermeable and permeable beds channel beds *** assessment of usual discharge values,infiltration,and roughness coefficient of a furrow(agricultural field) indicated that the SML of the furrows were less than20 *** the current research,the average dimensionless mixing coefficient was found to be 0.17 in the nonrectangular ***,equations were developed to explain the TMC and SML in a permeable parabolic channel that could be beneficial in prediction of fertilizer transport in furrow irrigatio n.

关键词： Environmental hydraulics Fertigation Furrow irrigation Solute mixing length Transverse mixing coefficient

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Effect of post-harvest UV-C irradiation and calcium chloride on enzymatic activity and decay of tomato(Lycopersicon esculentum L.)fruit during storage

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Journal of Integrative Agriculture 2017年第9期16卷 2093-2100页

作者： Saeideh Mansourbahmani Behzad Ghareyazie Sepideh Kalatejari Reza Salehi Mohammadi Vahid Zarinnia department of Horticultural Sciences Science and Research BranchIslamic Azad UniversityTehran ***Iran Agriculture Biotechnology Research Institute of Iran(ABRII)/Agricultural Research Education and Extension Organization(AREEO)Karaj ***Iran department of Horticultural Sciences University of TehranKaraj ***Iran

Tomato is one of the extensively consumed vegetable crops worldwide. The regular consumption of tomato decreases the incidence of chronic degenerative diseases such as certain types of cancer and cardiovascular diseases. The objective of this study was to find an appropriate method that not only reduces tomatoes decay, but also maintains its post-harvest quality. A factorial experiment based on randomized complete block design with three replications was conducted to evaluate effects of ultraviolet（UV）-C and CaCl_2 applications on tomato during storage. The traits studied included ethylene, polygalacturonase（PG） activity, pectin methyl esterase（PME） activity, firmness, total phenol content, and fungal-induced decay were measured weekly during 35 days of storage. Both UV-C and CaCl_2 treatments had positive effects on tomato quality as compared to control treatment. The 3 and 4.5 k J m^（-2） levels of UV-C and 2% CaCl_2 had positive effects on quality characteristics, respectivly. Fruits treated by UV-C and CaCl_2 had higher phenol and firmness, and less PME activity, PG activity, ethylene production, and decay than the control fruits. In conclusion, increasing in storage duration significantly affected the fruits quality by increasing in ethylene, PME activity, PG activity, decay and decreasing the phenol content and firmness. But UV-C and CaCl_2 led to significant decrease in this adverse impact relative to control treatment.

关键词： CaCl_2 ethylene production firmness PG PME phenol

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