Evaluation of group discussion on developing oyster culture in Kerala

Edible oyster presents good farming potential in Kerala in view of the conducive ecology and manpower availability. As the technology transfer function is vested with the extension personnel of the Socioeconomic Evaluation and Technology Transfer Division of CMFRI, a systematic evaluation of the programme was conducted by the Division to quantify opinions and suggestions and to list out the constraints anticipated in taking up the technology which would be helpful in developing suitable TOT strategies

Biodecolorization and biodegradation of Reactive Blue by Aspergillus sp.

Aspergillus sp. effectively decolorized Reactive Blue and other structurally different synthetic dyes. Agitation was found to be an important parameter, while glucose (99%), sucrose (97%) and mannitol (98%) were the best carbon sources for the decolorization. Decolorization was effective in an acidic environment (pH 3). Few chemically different dyes such as Reactive Black (75%), Reactive Yellow (70%), Reactive Red (33%) and Coloron Violet (66%) were decolorized moderately.The dye Coloron Black (9%)was highly resistant for decolorization by Aspergillus sp. Both spectral analysis and HPLC analysis were confirmatory to degradation

Water Quality Index of River Cauvery in Tiruchirappalli district, Tamilnadu

Abstract The water quality of river Cauvery in Tiruchirappalli district was monitored for a period of 3 months (January -March, 2009). Water samples were assessed by analyzing the various physicochemical parameters, such as pH, total dissolved solids, total hardness, total alkalinity, dissolved oxygen, biological oxygen demand, chloride, sulphate, nitrate and calcium. These 10 parameters were considered to compute the Water Quality Index (WQI). The WQI reveals the water of river Cauvery to be polluted moderately in the upstream of the city and unfit for human consumption towards the downstream. It needs sufficient treatment and management

Antibacterial activity of silver nanoparticles synthesized extracellularly by soil micro flora

The microbes used to synthesize the silver nanoparticles were isolated from the soil and identified as E.coli, Pseudomonas sp, Aspergillus sp, Penicillium sp and Actinomycetes sp. All the isolated organisms were cultured in broth medium and used for the synthesis of silver nanoparticles extracellularly by adding 3 -10mm AgNO3. The presence of extracellular silver nanoparticles were identified by UV – visible spectrophotometer (380-420nm) and particle size investigation. Most of the microbial synthesized products are susceptible for Proteus sp. Bioactive particles from E.coli and Actinomycetes sp. were found to be best against Klebsiella sp. The active molecule from Pseudomonas sp and Penicillium sp. showed very good sensitivity pattern against Proteus sp. The molecules formed by Aspergillus sp. showed higher sensitivity against Enterobacter sp. Among the three bacterial and two fungal species, the silver nanoparticles from the fungal organisms showed the better result against pathogens.Gümüş nanopartiküllerini sentezlemek için kullanılan mikroplar toprak ortamından izole edilmiş ve E.coli, Pseudomonas sp, Aspergillus sp, Penicillium sp and Actinomycetes sp olarak tanımlanmıştır. İzole edilen bütün organizmalar et suyu ortamında kültürlenmiş ve 3 -10mm AgNO3 eklenerek hücre dışı gümüş partiküllerin sentezi için kullanılmıştır. Hücre dışı gümüş partiküllerin varlığı, UV Vis (380-420nm)ve partikül boyut incelemesiyle belirlenmiştir. Mikrobiyal sentezlenen ürünlerin çoğu, Proteus sp.’ye duyarlıdır. E.coli and Actinomycetes sp.’den kaynaklanan biyoaktif partiküller Klebsiella sp.’ye karşı en iyi olarak bulunmuştur. Pseudomonas sp ve Penicillium sp türlerinden kaynaklanan aktif molekül Proteus sp’ye oldukça duyarlı bir durum sergilemiştir. Aspergillus sp. Tarafından oluşan moleküller Enterobacter sp.’ye karşı yüksek duyarlılık göstermiştir. Üç bakteri ve iki mantar türleri arasında mantarlardan kaynaklanan gümüş partiküller patojenlere karşı daha iyi sonuç vermiştir

The Role of Probiotics in the Poultry Industry

The increase of productivity in the poultry industry has been accompanied by various impacts, including emergence of a large variety of pathogens and bacterial resistance. These impacts are in part due to the indiscriminate use of chemotherapeutic agents as a result of management practices in rearing cycles. This review provides a summary of the use of probiotics for prevention of bacterial diseases in poultry, as well as demonstrating the potential role of probiotics in the growth performance and immune response of poultry, safety and wholesomeness of dressed poultry meat evidencing consumer’s protection, with a critical evaluation of results obtained to date