10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 3 2012 (July - September) Livestock products were screened for lessThan i greaterThan Salmonella lessThan /i greaterThan spp. and lessThan i greaterThan Salmonella typimurium lessThan /i greaterThan by PCR assay. Two sets of primers derived from lessThan i greaterThan inv lessThan /i greaterThan A gene and lessThan i greaterThan fli lessThan /i greaterThan C gene were employed to standardize the PCR assay for detection of lessThan i greaterThan Salmonella lessThan /i greaterThan spp. and lessThan i greaterThan Salmonella typhimurium lessThan /i greaterThan respectively. Buffered peptone water as primary enrichment broth followed by tetrathionate broth as selective enrichment broth was used in this study. Out of 150 samples of livestock products like milk, meat and fish screened 45 samples were positive for lessThan i greaterThan Salmonella lessThan /i greaterThan spp. and out of these 45 samples, 3 samples were positive for lessThan i greaterThan Salmonella typhimurium lessThan /i greaterThan . Two step enrichment and followed by PCR assay is giving good results than one step enrichment for screening of lessThan i greaterThan Salmonella typhimurium lessThan /i greaterThan in Livestock products. Hence accurate screening of livestock products by above method decreases the number of Salmonellosis cases. Vijaya Kumar Anumolu, Krishnaiah.N And Venkateswara Rao.L inv A gene, fli C gene, livestock products, PCR assay, Salmonella typhimurium 326-332