Loading...
Thumbnail Image

Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

Browse

Search Results

Now showing 1 - 6 of 6
  • ThesisItemOpen Access
    Isolation and characterization of fowlpox virus of poultry
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-07) Madanpal; Rao, V.D.P.
    Fowl pox is a contagious and slow spreading viral disease. It affects the birds of all age, sex and breeds. The disease is manifested in three different clinical forms–cutaneous, diphtheritic and oculo nasal forms. The mucosal lesions involving the mouth, esophagus and trachea can be confused with other respiratory diseases like infectious laryngotrachaetis, coryza etc. Keeping in view of the impact of disease on economics of poultry industry, the present study was undertaken to isolate the virus from scab lesions of birds of a poultry farm near Barielly following isolation of virus on chorioallantoic membrane (CAM), of developing chicken embryos, further characterization was carried by studying cytopathogenicity in cell culture and sero diagnostic tests. It was observed that virus was successfully adapted to CAM, CEF cells as well as in BHK 21 cell line. Characteristic pock lesion in CAM and CPE in unstained and stained preparations confirmed the presence of virus. In MGG staining, the cytopathic changes characterized by rounding of cells 24 hrs PI and the cytoplasmic vacuolation and syncytia formation by 48 hrs PI. In few cells, the nucleus occupied eccentric position and degenerative changes in the nucleus characterized by fragmentation of nuclear membrane in the infected CEF cells while the cytopathic changes in infected BHK 21cells were characterized by rounding of cells 36 hrs PI and the cytoplasmic vacuolation and syncytia formation by 48 hrs PI. The infectivity titre was calculated to be log104.25/ml (EID50/ml) on CAM and log10 9.79/ml (TCID50/ml) in CEF cell culture. The agar gel precipitation test (AGPT) revealed the precipitation band, which confirms the presence of antigen and antibody. Counter immunoelectrophorasis (CIE) showed a precipitation line within one hr of electrophoretic run. The indirect fluorescent antibody technique (IFAT) was used to demonstrate the virus in infected cell culture and cell line. The infected chicken embryo fibroblast cells revealed small particulate fluorescence in the cytoplasm of the cells. These tests confirmed that the virus isolate as fowlpoxvirus SDS-PAGE analysis of cell culture supernatant infected with FPV isolate revealed 11 polypeptides with molecular weights ranging from 120k Da to 15 kDa.
  • ThesisItemOpen Access
    Studies on immune status of indigenous and exotic breeds of domestic fowl
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-08) Yadav, Renuka; Rajesh Kumar
    Present study was carried out for comparative evaluation of some indigenous and exotic breeds of domestic chicken with regard to the innate immune response, adaptive immune response and resistence to infection following challenge with infectious agent. One exotic (RIR) and two indigenous breeds (Kadaknath, Uttara fowl) were used for study. All the birds were reared in deep litter system with ad-libtum feed and water throughout the experiment. The experiment lasted for 60 days. Significant difference was observed among parameters studied viz; mean total leukocyte count, differential leukocyte count, leukocrit, serum globulin, A/G ratio, phagocytic activity and opsonocytophagic index, among various breeds of chicken at all stages and all the innate and adaptive immune parameter was significantly higher in RIR compared to Kadaknath and Uttara fowl breed of chicken. The RIR showed highest hemagglutination inhibition titre following NDV immunization till the end of the experimental period followed by Kadaknath and Uttara fowl. Cell mediated immune (CMI) response was also observed to be higher for RIR breed compared to Kadaknath and Uttara fowl. The lymphocyte stimulation index was highest in RIR and the lowest in Uttara fowl. Maximum mortality was observed in Uttara fowl up to 15 days post challenge with a virulent virus and antibody titre was maximum in RIR breed at 3 and 7 days post challenge but at 14 days post challenge kadaknath showed highest antibody titre.
  • ThesisItemOpen Access
    Studies on vaccine strain of Fowlpoxvirus with special reference to its adaptation in primary cell cultures and its characterization
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2006-08) Tripathi, Ashok Kumar; Rajesh Chandra
    Fowlpox is an economically important and widespread disease of poultry that causes heavy morbidity and mortality in the affected birds resulting in heavy losses in the form of low egg and meat production. It affects the birds of all age, sex and breeds. The disease is caused by Avipoxvirus of the family Poxviridae. The disease is manifested in three different clinical forms–cutaneous, diphtheritic and oculo nasal forms. The mucosal lesions involving the mouth, esophagus and trachea can be confused with other respiratory diseases like infectious laryngotrachaetis, coryza etc. Keeping in view the economic impact of disease on poultry industry, the present study was undertaken to adapt the vaccine strain of FPV in chorioallantoic membrane, chicken embryo fibroblast cell culture as well as in chicken kidney cell culture and evaluate the various serological tests for rapid diagnosis of FPV infection. Fowlpoxvirus was successfully adapted to CAM, CEF and CK cells. Characteristic pock lesions on CAM and CPE in unstained and stained preparations confirmed the presence of virus. In MGG staining, the cytopathic changes were characterized by rounding of cells 12 hrs PI and the cytoplasmic vacuolation and syncytia formation by 18 hrs PI. In few cells, the nucleus occupied eccentric position and degenerative changes in the nucleus were characterized by fragmentation of nuclear membrane in the infected CEF cells, while the cytopathic changes in infected CK cells were characterized by rounding of cells 36 hrs PI and the cytoplasmic vacuolation and syncytia formation by 48 hrs PI. The infectivity titre was calculated to be log107.14 EID50/ml on CAM and log10 9.25TCID50/ml in CEF cell culture. The agar gel immunodiffusion test revealed the precipitation band, which confirms the presence of antigen and antibody. The serum neutralization test using the beta (constant virus serum dilution) procedure, revealed an antibody titre of 1:160. CIE showed a precipitation line within one hr of electrophoretic run. The indirect fluorescent antibody technique (IFAT) demonstrated the presence of virus in infected cell culture. The infected embryonic chicken kidney cells as well as the infected chicken embryo fibroblast cells revealed small particulate fluorescence in the cytoplasm of the infected cells.
  • ThesisItemOpen Access
    Studies on epidemiology, isolation and molecular analysis of fowl adenoviruses from the domestic chicken with respiratory disease conditions
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-08) Bisht, Ritika; Rajesh Kumar
    Fowl adenoviruses (FAdV) are the ubiquitous and cause extensive damage to the poultry industry. They are known to be associated with various disease conditions such as Inclusion body hepatitis, Hydropericardium Syndrome, respiratory disease, tenosynovitis, impaired growth, reduced egg production, aplastic anemia, atrophy of bursa and thymus, enteritis and conjunctivitis in chickens and other birds. Present study was undertaken to study epidemiology, to isolate and perform molecular analysis of fowl adenoviruses from the chickens with the respiratory disease conditions. Natural outbreaks investigated during the study revealed 2 –15% mortality among the affected birds aged 3-6 weeks. General postmortem findings were enlarged and friable liver with necrotic foci, enlargement of kidney, congestion and haemorrhagic trachea, congested lungs. Four isolates of fowl adenoviruses were propagated in primary CEL cell culture. The cytopathic effects were characterized by rounding of the cells, degeneration, increase in the refractive index of the cells and microplaques formation. AGPT, CIEP, IFAT, Dot-ELISA and Sandwich ELISA determined the presence of the virus in infected tissues and cell culture. Intensely basophilic intra nuclear inclusion bodies were also visualized following MGG staining of CEL cells. The genomic DNAs were extracted from the infected CEL cells and PCR was carried out for amplification of L1 region of the hexon gene showing amplicons of the ~900 bp. On digestion with MluI, three isolates were digested and the two bands of 400 and 500 bp were visualized and with the enzyme StyI, only one isolate was digested and two bands of 480 and 420 bp were obtained. None of the isolates were digested by the enzymes BglI, BsiWiI and ScaI. RE analysis revealed that isolates belong to two serotypes 5 (R-66) and 8 (R-53, R-43, R-63). Thus, it can be concluded that these serotypes are involved in respiratory disease of domestic chickens in India.
  • ThesisItemOpen Access
    Comparative protein profiles of Salmonella & E. coli
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-05) Gupta, Meenal; Sharma, V.D.
    Salmonella is one of the most common foodborne pathogens around the world; its detection is a difficult proposition. Conventional method adopted for its detection in foods is cumbersome and time taking. In the present study, attempts were made to compare the protein profiles of selected Salmonella serovars and E. coli to identify the genus specific protein for Salmonella. The commonly prevalent four Salmonella serovars, namely, S. Bareilly, S. Gallinarum, S. Typhimurium and S. Weltevreden were chosen for the study. E. coli O78 that was isolated most frequently from dead/ailing birds was also included in the study. Bacterial growth of these bacteria were treated with cefotaxime and the supernatant obtained was designated as cefotaxime extract (CE).The CE was precipitated with ammonium sulphate at 100% level and the precipitate was designated as PDP (100%). SDS-PAGE analysis of PDPs (100%) yielded 11, 15, 15, 11 and 14 bands in S. Bareilly, S. Gallinarum, S. Typhimurium and S. Weltevreden and E. coli O78 respectively. S. Weltevreden shared 7 bands with E. coli O78. A protein of molecular weight 20.89 kDa was found in all Salmonella PDPs but not in E .coli O78. In order to further purify this protein, proteins precipitated between 50 and 80% salt concentration (PDP 50-80%) were isolated and subjected to gel filtration using Sephacryl S-200 HR gel matrix. Gel filtration chromatographic analysis revealed 4, 2 and 5 peaks in PDPs (50-80%) of S. Gallinarum, S. Weltevreden and E. coli O78 respectively. All three PDPs (50-80%) and the major peaks obtained by gel filtration, i.e. 2nd peak of Salmonella serovars and 1st peak of E. coli O78 were run on SDS-PAGE. Again the protein with molecular weight 20.89 kDa was seen in all Salmonella serovars along with some other proteins suggesting its further purification.
  • ThesisItemOpen Access
    Synthesis and characerization of silver nanoparticles and assessment of their antiviral potential
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-06) Khan, Suhaib Ul Haq; Rajesh Kumar