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competitive exclusion
相关语句
  竞争排斥
     THE APPLICATION OF COMPETITIVE EXCLUSION FOR THE CONTROL OF AVIAN SALMONELLA INFECTIONS
     应用竞争排斥法防制禽沙门氏菌感染
短句来源
     A Mathematical Model on Gause's Competitive Exclusion
     Gause竞争排斥原理的一个数学模型
短句来源
     Several agricultural ecosystem principles such as the law of energy flow and matter cycle,correlation of ecosystems,symbiosis and allelopathy,tolerance limit,structure and function,ecosystem opening,limiting factors,integrated function of ecosystem,biological competition and competitive exclusion,etc. ,are discussed in this paper.
     论述了农业生态系统的能量流动物质循环原理、系统相关原理、相生相克原理、忍耐极限原理、结构功能原理、系统开放原理、限制因子原理、非加和原理、生物竞争原理和竞争排斥原理 ;
短句来源
     A chemostat model with production of toxin is investigated, the necessary and sufficient conditions guaranteeing the existence and stability of all equilibria are found. By constructing the Dulac function and Lyapunov function, and using the theory of limit systems, the uniformity with the competitive exclusion principle is proved, and the complete results about extinction are obtained.
     讨论了一类带有毒素生产的恒化器模型,获得了模型各类平衡点存在及稳定的充要条件,通过构造Dulac函数和Lyapunov函数和运用极限系统理论,证明了该模型符合竞争排斥原理,并且得到了各类微生物绝灭的完整分析结果。
短句来源
  竞争性排斥
     A review of the efficacy and mechanism of competitive exclusion for the control of Salmonella in poultry
     竞争性排斥法控制家禽沙门氏菌的效力和机理(综述)
短句来源
     Effect of Competitive Exclusion Culture On Salmonella Colonization、Immunity and Serum Biochemical Values of Broiler Chickens
     竞争性排斥培养物对肉鸡沙门氏菌定植、免疫力及血液生化指标的影响
短句来源
     We intend to study the effect of different avian species' competitive exclusion culture on salmonella colonization,immunity and serum biochemical values of broiler chickens.
     本文旨在研究不同禽类竞争性排斥培养物对肉鸡沙门氏菌定植、免疫力及血液生化指标的影响。
短句来源
  “competitive exclusion”译为未确定词的双语例句
     Attempt to control stunting in chickens by competitive exclusion
     用“竞争性排斥”控制鸡矮化的尝试
短句来源
     Competitive exclusion for Salmonella control
     用竞争性排斥法控制沙门氏菌
短句来源
     According to Gause’s principle of competitive exclusion,species wigh identi-cal niches cannot coexist.
     根据高斯竞争排除法则,占有相同生态位的物种不能共存。
短句来源
     However,tens of plant species can often coexist in plant communities,which is difficult to be reconciled with the principle of competitive exclusion.
     然而植物群落中共存种的数目经常可达数十个以上,难于用以竞争排除法则为基础的竞争共存理论加以解释。
短句来源
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  competitive exclusion
Competitive exclusion, production of organic acids and stimulation of immune response, were involved in inhibition of E.
      
The niche differences appear to be due to different oxygen requirements and led to coexistence of the two strains.5.The results are discussed with regard to the competitive exclusion principle.
      
caryi appears to have resulted in some competitive exclusion along other niche parameters.
      
It is suggested that this reduction in diversity and abundance of certain key foulers is due to competitive exclusion by the dense blue-green and diatom mats, and is not a direct effect of the sewage effluent.
      
This suggests that, as has been found in some previous studies, competitive exclusion of the subordinate species (P.
      
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Since early 1980's, outstanding work has been achieved on control of food-borne disease by colonization control of enteropathogens in poultry and livestock, which based on Nurmi concept (occupation of the sites on the mu(?)a that salmonella invades and production of volatile fatty acids) of m(?)l competitive exclusion with normal gut-flora of healthy, salmonella-free adult bird; and more advanced development was completed by using a mixture anaerobic cultures of isolates from gut contents, so called defined...

Since early 1980's, outstanding work has been achieved on control of food-borne disease by colonization control of enteropathogens in poultry and livestock, which based on Nurmi concept (occupation of the sites on the mu(?)a that salmonella invades and production of volatile fatty acids) of m(?)l competitive exclusion with normal gut-flora of healthy, salmonella-free adult bird; and more advanced development was completed by using a mixture anaerobic cultures of isolates from gut contents, so called defined exclusive cultures. It is an economic and effective measure against salmonella, the successful application of such treatment has been confirmed in several laboratorles, and it is worthy to try extending its uses in swine and duck.

本文系综述近十年来,国外应用细菌在宿主消化道内特定部位的竞争性排斥现象——犹似病毒的干扰现象,在实验上和生产实践上对家禽肠道传染病的预防及控制。

The concept of competitive exclusion (CE) is introduced, and its effects, mechanism and practical application for the control of avian Salmonella infections are presented. The main advantages of CE and its potential applying in poultry production are discussed.

本文介绍了竞争排斥的概念,并概述了其在控制禽沙门氏菌感染中的效果、作用机理和实际应用等方面的研究进展,并讨论了这一方法的主要优点及其在家禽生产及人医上的潜在应用前景。

onsider several species competing for one kind of resource in an isolated environment.Thenet growth rate is supposed to be a function of single competition factor which is dependent on theresource and populations.It is demonstrated that for single species,the population evolves as asigmoidal curve. For several competing species,the outcome is dependent on the comparison ofleast resource requirement(LRR)between different species. The species with minimal LRR is thewinner.By comparison with classical Lotka-Volterra...

onsider several species competing for one kind of resource in an isolated environment.Thenet growth rate is supposed to be a function of single competition factor which is dependent on theresource and populations.It is demonstrated that for single species,the population evolves as asigmoidal curve. For several competing species,the outcome is dependent on the comparison ofleast resource requirement(LRR)between different species. The species with minimal LRR is thewinner.By comparison with classical Lotka-Volterra model the proposed model has the followingpeculiarities:1)The outcome of competition depends only on the surviving capacities,LRR,ofcompeting populations,The result is independent on the breeding rate,competition strength andinitial conditions,etc,2) The coexistence of several species occurs only in very restricted condi-tions. Oppositely,the competitive exclusion is general.

考虑若干物种在一孤立环境中对同一种资源(食物)的竞争.各物种的净增殖率依赖于资源量以及参与竞争的个体数目.提出了一组种群变化与资源变化相耦合的微分方程.对于单一物种,种群中个体数目的变化呈S型曲线.当多个种群参与竞争时,竞争结局由各物种的最低资源需求量(LRR),即推持种群净增率为零时的资源需求量决定:具有最小LRR的物种将竞争获胜,而其余物种将消亡;如果几个物种同时具有相等的并且是最小的LRR,则这几个物种将共存而其他物种灭绝,与经典的Lotka-Volterra模型相比,模型具有以下不同之处:1)竞争的结局仅取决于各物种的生存能力,总是具有最低资源需求的物种获胜,这种结局不受繁殖速率、竞争强度、初值等因素的影响;2)共存只有在限制很严的情况下出现,而相互排斥则是普遍的.

 
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