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Antibody Response Of Goats To Bivalent Pprv And Goat Pox Virus Vaccine

by Muhammad Farooq (2009-VA-146) | Prof. Dr. Khushi Muhammad | Dr. Muhammad Anees | Professor Dr. Aftab Ahmad Anjum | Dr. Muhammad Avais.

Material type: book Book; Literary form: not fiction Publisher: 2016Dissertation note: PPR is one of the most acute viral disease of sheep, goats, deer and other similar animals. This disease is caused by Morbillivirus which belongs to familyParamyxoviridae. In this disease oculo-nasal discharge, stomatitis, diarrhea, high temperature, and pneumonia is common sign.along with foul breath.Goat pox virus (GPV) disease is extremely transmissible described by temperature, falling down and different stages of pox lesion development such as, vesicles, scars, pustules, erythema and papules, all over the body. This study was aimed to evaluate the monovalent lyophilized PPRV and GPV vaccine with bivalent PPRV and GPV vaccines. Moreover effect of amount of immunogen of the vaccines, and nature of adjuvant used in the vaccine on antibody response of goats was also evaluated.Seven types of vaccines PPR (FD), GPV (FD),PPR+GPV (FD), PPR+GPV(gel 102.5), PPR+GPV(gel 103.5), PPR+GPV(gel 104.5) and PPR+GPV(oil) were prepared. All vaccines other than gel based contained 103.5 immunogen level. Each vaccine was inoculated to each of the six goats of the respective group. Blood was collected at 21, 42 and 63 dayspost vaccination. The antibody response of goats was measured with CFT. There was non-significant difference between the anti-PPR antibodies induced by either monovalent or bivalent vaccines. Similarly goat Pox vaccines also produced non-significant difference in both monovalent and bivalent form. Antibody response was directly proportional to the amount of specific immunogen in the vaccine. There was non-significance effect of gel or oil in the vaccine as an adjuvant on the antibody response of goats to the vaccine. Availability: Items available for loan: UVAS Library [Call number: 2496-T] (1).

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Effect Of Stabilizers On Biological Titre Of Freeze Dried Ppr Virus Vaccine

by Muhammad Zubair Latif (2009-VA-382) | Prof. Dr. Khushi Muhammad | Dr. Muhammad Anees | Dr. Imran Altaf | Dr. Muhammad Imran.

Material type: book Book; Literary form: not fiction Publisher: 2016Dissertation note: PPR is an acute and highly contagious viral disease of small ruminants caused by Morbillivirus. It causes high morbidity and mortality in small ruminants and heavy economic loses to farmers. Live attenuated vaccines are commonly used to control the disease. During freeze drying and after dilution of freeze dried vaccine, there is lose of virus titre so vaccine efficacy is reduced. Stabilizers are therefore added to protect from freeze drying stress and heat shock during storage and transportation. Each stabilizer has different protective effect. The present project was therefore designed to evaluate different stabilizers to act as the best one for maximum stability of the virus titre. Fifty vials of PPR vaccine with each of six stabilizers (Weybridge medium-WBM, Lactalbumin hydrolysate sucrose-LS, lactalbumin hydrolysate sorbitol-LSbG, Tris sucrose-TS, Tris Trehalose-TT and Goat skimmed milk-GSM) was formulated, freeze dried and three vials from each formulation was selected and evaluated by biological titration just after freeze drying and dilution in PBS (7 pH). Each of the vaccine diluted with the PBS and stored at 40C, 250C, 370C for 36 hours. Biological titration of each of the vaccines stored at different temperature and time was determined on Vero cell lines. The virus infectivity was calculated as mean TCID50 by MTT assay. It is concluded from the study that stabilizers having carbohydrates (sucrose, sorbitol, trehalose), salts (sodium) and hydrolyzed proteins (lactalbumin hydrolysates) are effective to make compact mass (freeze drying) of PPR virus vaccine. WBM, LS, and LSbG maintain infectivity of the PPR virus vaccine (if reconstitution with PBS and stored at 4°C) for 12 hours. However, TT is able to protect infectivity titre of the PPR virus vaccine during freeze drying and even during its storage after hydration with PBS at 4°C for 24 hours. Availability: Items available for loan: UVAS Library [Call number: 2546-T] (1).

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