141 research outputs found

    Fatty Liver-Hemorrhagic Syndrome as Affected by Fat, Choline and Biotin Supplementation

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    Fatty liver syndrome, now more commonly known as fatty liver-hemorrhagic syndrome (FLHA) , has become an increasing problem in recent years, especially in cage-type laying operations. It seems to occur in flocks that are apparently healthy and in good laying condition. Symptoms characteristic of the disease are about a 25% increase in body weight along with a 30% or more decrease in production, an increase in mortality and excessive abdominal and liver fat that leads to hematomas of the liver

    Effects of Moisture on the Nutritive Value of Fermented Soybeans for Chick Growth

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    It is widely recognized that the most important factor in growth of a fermenting organism is the moisture of or relative humidity (RH) surrounding a natural substrate. Mold spores have different minimum water requirements at different temperatures and the presence or absence of nutrients also affects water requirements for growth. Hence, three experiments were designed to investigate the influence of moisture content on the nutritive value of the fermented preparations for chick growth

    Studies on the Stimulation of Poultry Growth by Soybeans Molded with Species of Aspergillus

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    Many workers have reported that cultures of molds grown on feedstuffs produce poisonous metabolites, mycotoxins , which depress growth of farm animals and may cause high mortality

    Effect of Fungus-Fermented Soybeans on the Life Cycle Performance of Japanese Quail

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    Earlier studies at our laboratory have demonstrated that feeding full-fat soybeans fermented by certain Aspergillus cultures resulted in significantly improved broiler growth and feed utilization. In conjunction with these findings, the effect of two Aspergillus species on the life cycle performance of Japanese quail (Cotumix coturnix japanica) has been investigated and will be reported herein

    Agricultural extension needs of farmers in Telfairia production and marketing in Enugu State, Nigeria

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    The study assessed agricultural extension needs of farmers in Telfairia production and marketing in Enugu State, Nigeria. Multistage sampling technique was used to select 160 Telfairia farmers for the study. Structured interview schedule was used to collect data. Data was analysed by use of descriptive statistics and factor analysis. Results show that farmers sold their products directly to consumers through village or local markets (56.9%), village squares (27.6%), at roadside stands (16.2%), while 11.2% sold them at farm gate. Only 3.6% sold their products through cooperative societies. The quantity and price of sale of produce varied depending on the season of the year (26.6%) in which the crop was produced, number of buyers (20.0%) and quality of produce (16.2%). About 63% of the respondents did not have extension contact in the last one year. Extension needs of farmers were indicated in the following areas: sourcing of farm input (M= 3.62), sourcing appropriate marketing channel (M= 3.18), sourcing of improved farm tools (M= 3.11), expansion of scale of production (M= 3.07), receiving information on appropriate cultural practices (M=3.06), and sourcing farm credit (M= 3.00). Infrastructural, technical, logistic and financial challenges hindered effective production and marketing of Telfairia among farmers. There is need for extension to assist farmers to source farm inputs and establish or explore viable markets where farmers will sell their products at a favourable price

    Agricultural extension needs of farmers in Telfairia production and marketing in Enugu State, Nigeria

    Get PDF
    The study assessed agricultural extension needs of farmers in Telfairia production and marketing in Enugu State, Nigeria. Multistage sampling technique was used to select 160 Telfairia farmers for the study. Structured interview schedule was used to collect data. Data was analysed by use of descriptive statistics and factor analysis. Results show that farmers sold their products directly to consumers through village or local markets (56.9%), village squares (27.6%), at roadside stands (16.2%), while 11.2% sold them at farm gate. Only 3.6% sold their products through cooperative societies. The quantity and price of sale of produce varied depending on the season of the year (26.6%) in which the crop was produced, number of buyers (20.0%) and quality of produce (16.2%). About 63% of the respondents did not have extension contact in the last one year. Extension needs of farmers were indicated in the following areas: sourcing of farm input (M= 3.62), sourcing appropriate marketing channel (M= 3.18), sourcing of improved farm tools (M= 3.11), expansion of scale of production (M= 3.07), receiving information on appropriate cultural practices (M=3.06), and sourcing farm credit (M= 3.00). Infrastructural, technical, logistic and financial challenges hindered effective production and marketing of Telfairia among farmers. There is need for extension to assist farmers to source farm inputs and establish or explore viable markets where farmers will sell their products at a favourable price

    Enhancing Nanoparticle-Based Visible Detection by Controlling the Extent of Aggregation

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    Visible indication based on the aggregation of colloidal nanoparticles (NPs) is highly advantageous for rapid on-site detection of biological entities, which even untrained persons can perform without specialized instrumentation. However, since the extent of aggregation should exceed a certain minimum threshold to produce visible change, further applications of this conventional method have been hampered by insufficient sensitivity or certain limiting characteristics of the target. Here we report a signal amplification strategy to enhance visible detection by introducing switchable linkers (SLs), which are designed to lose their function to bridge NPs in the presence of target and control the extent of aggregation. By precisely designing the system, considering the quantitative relationship between the functionalized NPs and SLs, highly sensitive and quantitative visible detection is possible. We confirmed the ultrahigh sensitivity of this method by detecting the presence of 20 fM of streptavidin and fewer than 100 CFU/mL of Escherichia coli

    Plasmon oscillations in ellipsoid nanoparticles: beyond dipole approximation

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    The plasmon oscillations of a metallic triaxial ellipsoid nanoparticle have been studied within the framework of the quasistatic approximation. A general method has been proposed for finding the analytical expressions describing the potential and frequencies of the plasmon oscillations of an arbitrary multipolarity order. The analytical expressions have been derived for an electric potential and plasmon oscillation frequencies of the first 24 modes. Other higher orders plasmon modes are investigated numerically.Comment: 33 pages, 12 figure
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