Research Symposium-2012
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Browsing Research Symposium-2012 by Subject "Biotechnology"
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Item Evaluation of Nitrogen Fixation Ability of Azospirillum spp. associated with Sugarcane, Maize and Guinea Grass(Uva Wellassa University of Sri Lanka, 2012) Kumari, D. P. M. K.; Chandrasena, G.Biological nitrogen fixation is gaining importance in current agriculture because of people’s concern on the environmental and soil heath that are caused by the continuous use of nitrogenous fertilizers and need for improved sustainable productivity. From several earlier studies, it has been shown that, Azospirillum is an important free-living, N fixing bacterium which makes a symbiotic association on roots of different crops. Nitrogen fixation by Azospirillum spp. in association with grasses and other plants has been examined when it is observed in preparation of a bio fertilizer. Biofenilizers are defined as preparations containing living or latent cells of efficient strains of microorganisms that help crop plants to uptake of nutrients by their interactions in the rhizosphere, when applied through seeds or to Oil treatments. The present study was conducted to isolate the Azospirillum spp., to evaluate the nitrogen fixation abilities of isolates and to assess the perforiiiaMce of inoculated plants.Item Gastrointestinal Parasitism in Dairy Cattle in Badulla District: Impact of Age, Feeding Pattern and Water Source(Uva Wellassa University of Sri Lanka, 2012) Fernando, T. S. R.; Wijesundera, R. R. M. K. K.; Bulumulla, P. B. A. I. K.The Gastrointestinal tract of dairy cattle is inhabited by many species of parasites. The prevalence is variable depending upon different intrinsic and extrinsic; epidemiological and biological factors. The economic losses are in the form of mortality, decreased productivity, reduced weight gain and other means affecting the industry globally. Many cattle in Badulla district are underfed during most of the time of the yearand are not supplied with adequate balanced ration. As a result, the general nutritional status of most of the cattle is in subnormal level, which greatly increases susceptibility to parasitic diseases (Blood et al., 1990). This study examines the occurrence of gastrointestinal parasites in dairy cattle in Badulla district and identifies the significance of age, water source and feeding pattern.Item Investigation of Cleaner Production Options in Latex Dipping Industries(Uva Wellassa University of Sri Lanka, 2012) Weerasinghe, K.G.N.H.; Gunathilaka, R. P. D.Cleaner Production technology is a systematic and a planned procedure for identifying, quantifying and finding options to minimize wastes. It is defined as a continuous application of an integrated, preventive, environmental strategy applied to processes, products and services to increase overall efficiency and reduce risks to humans and the environment. Implementation of Cleaner Production options will increase profits and simultaneously reduce the need of the end of pipe pollution controls. Sri Lankan rubber sector plays a vital role among the industries operating in the country as its contribution for the economy is significant. The latex dipping industry consumes large amount of natural rubber latex, hundreds of chemicals and massive water quantity. The efficient use of available resources is very much important to the industry. This assessment was conducted at Lalan Rubber’s (Pvt) Ltd, Seethawaka where manufacture Latex examination gloves. The main objective of the assessment was to identify the major waste causes of manufacturing latex dipped products and generating options to minimize them.