000 02543nam a2200193Ia 4500
005 20151005133440.0
008 150525s2010 xx 000 0 und d
041 _aeng
082 _a1276,T
100 _aShumaila Rani
_97432
110 _cProf.Dr.Masood Rabbani
_95742
245 _aDynamics Of Recombinant Avian Influenza Virus H9-Ha Gene Herpesvirus Of Turkey Vector Vaccine In Chicken
260 _c2010
502 _aAvian influenza (AI) is known to exist for centuries. It's primarily a disease of birds. For prevention and control of H9N2 avian influenza disease, HA gene from Pakistani H9N2 field virus isolate (PK-UDL/01/08 H9N2) cloned into a herpesvirus of turkey (rHVT/AI-H9 having full HA) at Institute for Animal Health, Compton, UK, expressing HA proteins, was given subcutaneously (in the neck). Commercial avian influenza vaccine was given to chicken through intramuscular route. On termination of the experiment, the chicks from all groups were sacrificed and their visceral organs were collected on chick-wise basis. Besides this, blood was collected for complete blood counts (CBC) and blood chemistry. Results of groups were then compared for any significant difference. The data analyses showed that in complete blood counts, there was no significant difference (p<0.05) of total leukocyte counts of different groups of chickens but heterophil percentages showed variation among different groups. Analyses of Serum chemistry results showed that glucose and protein concentration in serum varies significantly (p>0.05) among the different groups of birds. However, there was no significant difference of cholesterol levels among the groups of chickens. For determining the persistence of rHVT/AI-H9 having full HA virus in different visceral organ and in blood samples of Group A, results of the PCR showed the persistence of herpes turkey virus in leukocytes, spleen, liver, lung, kidney and heart. This project helped in evaluating dynamics of recombinant HVT containing avian influenza HA gene from avian influenza H9N2 Pakistani isolate. In future the study may be continued for further biological characterization by isolating the HVT from different visceral organ in different interval of time and fractionating the serum protein and analyzing the gamma globulin fraction in serum to measuring the humoral immune response against the recombinant vaccine.
650 _aDepartment of Microbiology
_94609
700 _aDr.Tahir Yaqub
_96821
700 _aProf.Dr.Masroor Elahi Babar
_96616
942 _cTH
999 _c2991
_d2991