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Research (Published online: 25-03-2016)

15. Evaluation of specific humoral immune response in pigs vaccinated with cell culture adapted classical swine fever vaccine - Mrinal K. Nath, D. K. Sarma, B. C. Das, P. Deka, D. Kalita, J. B. Dutta, G. Mahato, S. Sarma and P. Roychoudhury

Veterinary World, 9(3): 308-312

 

 

   doi: 10.14202/vetworld.2016.308-312

 

 

Mrinal K. Nath: Department of Veterinary Epidemiology and Preventive Medicine, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; mrinalnath2007@yahoo.com

D. K. Sarma: ICAR-National Research Centre on Pig, Rani, Guwahati, Assam, India; dksarma1956@gmail.com

B. C. Das: Department of Veterinary Epidemiology and Preventive Medicine, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; bipban.das@gmail.com

P. Deka: Department of Veterinary Microbiology, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; drpankajaau@gmail.com

D. Kalita: ICAR - All India Co-ordinated Research Project on Pigs, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; dhireswar64@gmail.com

J. B. Dutta: Department of Veterinary Epidemiology and Preventive Medicine, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; duttajyotib@gmail.com

G. Mahato: Department of Veterinary Epidemiology and Preventive Medicine, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; gaurangamahato@yahoo.com

S. Sarma: Department of Veterinary Bio-chemistry, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India; sarmasatya49@yahoo.com

P. Roychoudhury: Department of Veterinary Microbiology, College of Veterinary Science and Animal Husbandry, Central Agricultural University, Aizawal, Mizoram, India; parimal74@rediffmail.com

 

Received: 28-12-2015, Revised: 27-01-2016, Accepted: 02-02-2016, Published online: 25-03-2016

 

Corresponding author: Mrinal K. Nath, e-mail: mrinalnath2007@yahoo.com


Citation: Nath MK, Sarma DK, Das BC, Deka P, Kalita D, Dutta JB, Mahato G, Sarma S, Roychoudhury P (2016) Evaluation of specific humoral immune response in pigs vaccinated with cell culture adapted classical swine fever vaccine, Veterinary World, 9(3): 308-312.



Aim: To determine an efficient vaccination schedule on the basis of the humoral immune response of cell culture adapted live classical swine fever virus (CSFV) vaccinated pigs and maternally derived antibody (MDA) in piglets of vaccinated sows.

Materials and Methods: A cell culture adapted live CSFV vaccine was subjected to different vaccination schedule in the present study. Serum samples were collected before vaccination (day 0) and 7, 14, 28, 42, 56, 180, 194, 208, 270, 284 and 298 days after vaccination and were analyzed by liquid phase blocking enzyme-linked immunosorbent assay. Moreover, MDA titre was detected in the serum of piglets at 21 and 42 days of age after farrowing of the vaccinated sows.

Results: On 28 days after vaccination, serum samples of 83.33% vaccinated pigs showed the desirable level of antibody titer (log10 1.50 at 1:32 dilution), whereas 100% animals showed log10 1.50 at 1:32 dilution after 42 days of vaccination. Animals received a booster dose at 28 and 180 days post vaccination showed stable high-level antibody titre till the end of the study period. Further, piglets born from pigs vaccinated 1 month after conception showed the desirable level of MDA up to 42 days of age.

Conclusion: CSF causes major losses in pig industry. Lapinised vaccines against CSFV are used routinely in endemic countries. In the present study, a cell culture adapted live attenuated vaccine has been evaluated. Based on the level of humoral immune response of vaccinated pigs and MDA titer in piglets born from immunized sows, it may be concluded that the more effective vaccination schedule for prevention of CSF is primary vaccination at 2 months of age followed by booster vaccination at 28 and 180 days post primary vaccination and at 1 month of gestation.

Keywords: antibody titer, classical swine fever vaccine, liquid phase blocking-enzyme-linked immunosorbent assay, pig.



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