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Articles by Debashis Roy
Total Records ( 4 ) for Debashis Roy
  Mahima , Amit Kumar Verma , Amit Kumar , Vinod Kumar and Debashis Roy
  Recently, there are wide potential application of biotechnology in the field of animal production to increase the productivity of animals through better plane of nutrition, better production potential and improved health conditions. Nutrients like protein, aminoacids and fats can be produced or protected according the need at different physiological states of the animals. Enzymes can be used to improve the availability of nutrients from feed and to reduce the wastage of the feed and fodder. Prebiotics and probiotics or immune supplements can be useful to inhibit enteric pathogenic bacteria. Along with these use of plant biotechnology to produce feed and fodder with good nutritive values can be done with ease. Addition of vaccines or antibodies in feeds can be used to protect the animals from the disease. Genetic manipulation of rumen microbes can be done to improve the animal health. However, it is very difficult to accept the role of biotechnology in animal nutrition and it mainly depends on social and cultural aspects and economic importance to consumers and society.
  Mahima , Amit Kumar Verma , Amit Kumar , Anu Rahal , Vinod Kumar and Debashis Roy
  Selenium is an essential trace element in the diets which is required for maintenance of health, growth and biochemical-physiological functions. The area covered in this review has been rapidly unfolding in recent years and has already acquired a vast spread. This study presents a concise introductory overview of the effect of organic and inorganic selenium on growth performance, carcass traits, daily egg production, egg quality, Se uptake in various tissues and plasma and plasma glutathione peroxidase activity in animals.
  Mahima , Krishna Veer Singh , Amit Kumar Verma , Vinod Kumar , Shanker Kumar Singh and Debashis Roy
  The ‘Hariana’ breed of cattle has been proved to be highly adaptable to harsh climatic conditions and resistant to common diseases prevalent in India. In this study, the normal reference values of hematological and serum proteins and other blood biochemical parameters were determined in the heifers of Hariana breed maintained at Instructional livestock farm complex, DUVASU, Mathura, India. A total of twenty four animals were used in this study. Blood was taken aseptically from all the animals and transported to laboratory for hematological and biochemical analysis. The hematological parameters (Hemoglobin, total erythrocyte count, total leukocyte count, packed cell volume) and biochemical parameters (Total protein, total albumin, albumin globulin ratio, urea, creatinine, calcium, phosphorous, calcium phosphorous ratio, AST, ALT) values were statistically analyzed, mean and standard deviations were calculated and set as reference values. This study reported hematological and serum biochemical values which could serve as baseline information for comparison in conditions of nutrient deficiency, physiological and health status of Hariana cattle heifers in India.
  Debashis Roy , Bhabananda Biswas , H.M. Rakibul Islam , Md. Shamim Ahmed , Md. Rasheduzzaman and Md. Golam Sarower
  Although, Escherichia coli is widely distributed in the environment, only a small percentage is pathogenic to humans. The most commonly encountered are those belonging to the Enterotoxigenic (ETEC), Enteroinvasive (EIEC), Enterohaemorrhagic (EHEC) and Enteropathogenic (EPEC) subtypes. Aquaculture premises specially shrimp farm in tropical and subtropical countries largely susceptive to different types of E. coli strains. With the PCR system, an attempt was taken to identify the virulent E. coli in a rapid basis from water, sediment and live shrimp from different shrimp farms established in the shrimp production areas of southwest part of Bangladesh. The target genes chosen for this investigation included the PhoA, a housekeeping gene in all E. coli and thereafter the virulent genes LT1, LT1 and ST1 of ETEC, the VT of EHEC and EAE of EPEC, which were amplified with the primers designed for their specific genes. The restriction enzyme conformation and the gel electrophoresis bands showed the presence of E. coli, among which ETEC and EPEC groups were present in the environmental and biological samples of shrimp farms, brings up into the human health concern. The sanitation conditions amid farm were also investigated to find the link of pathogenic E. coli, which came into the result of less infection if the farm maintains improved sanitation. This study has clearly urged the exigency of periodical quick check of virulent E. coli with the versatile PCR system from brood management to post-harvest handling of shrimp.
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