Abstract:
A study was carried out to investigate the bacterial contamination in poultry vaccines. A total of 48 poultry vaccines, 18 local and 30 imported were examined for bacterial contamination. The vaccines were ND, ND+IB, IB, IBD, Hydro and A.I (local n=3 and imported n=5), respectively. Only 1 (2.08%) vaccine was found positive for bacterial contamination, while remaining 47 (97.92%) were exhibited no growth and recorded as negative for any sort of bacterial contamination. Escherichia coli was recognized from one local vaccine (5.56%) manufactured for Hydropercardium syndrome whereas imported vaccines were found free from bacterial contamination. Results of this study warrant immediate attention of the local manufactures to improve their vaccine quality. Such studies need to be continued on periodical basis. A number of biochemical and sugar fermentation tests were also carried out to confirm its species. Escherichia coli interacted with TSI agar and produced H2S in the medium. The organism showed positive interaction with catalse, methyl red and nitrate, while negative for oxidase, indole, urease, Voges-Proskauer (VP), gelatin (GL) and citrate. The species fermented glucose, mannose, maltose, mannitol, xylose and inositol but did not ferment galactose, creatinin and dulcitol.
Page(s):
46-48
DOI:
DOI not available
Published:
Journal: Journal of Agriculture and Social Sciences, Volume: 5, Issue: 1--2, Year: 2009