VetSRev
Database of veterinary systematic reviews
Database of veterinary systematic reviews
Food Control (2012) 27: 351–361
DOI: 10.1016/j.foodcont.2012.04.004
Context: Broiler chicken carcass spray and dip treatments are just two of many different interventions investigated to address the need to reduce _Salmonella_ prevalence and concentration on broiler chicken carcasses during processing. However the results of published research are inconsistent and sometimes contradictory creating a need to formally evaluate, synthesize and summarize available research to avoid recommending ineffective treatments and identify key knowledge gaps for future work. Objective: Evaluate intervention research that measured the efficacy of various spray and dip treatments, applied on broiler chicken carcasses during primary processing, as _Salmonella_ prevalence or concentration on broiler carcasses, using systematic review-meta-analysis (SR-MA). Data sources: A comprehensive electronic search was implemented in six databases and verified through a manual search of topic-related reference lists, related reviews or book chapters, and through consultations with selected topic experts. Study inclusion: Control and challenge trials, cohort and before-and-after intervention research published in English that investigated the efficacy of any spray or dip treatments, applied to broiler chicken carcasses or carcass parts during processing, on _Salmonella_ prevalence or concentration measured at the same level under laboratory, pilot plant and commercial conditions. Risk of bias assessment and data extraction: Relevant research was evaluated for methodological soundness and completeness of reporting. The main characteristics of each study included in the review were extracted. Data analysis: Random-effects MA of trisodium phosphate and lactic acid dip treatments (_n_=12 and _n_=32 trials with prevalence outcomes, respectively) resulted in homogeneous (_p_-value=0.469; _I_²=0.0% and _p_-value=0.284; _I_²=11.4%, respectively) summary effect estimates (OR=1.16; 95% CI: 0.59-2.26 and OR=0.05; 95% CI: 0.03-0.10, respectively). Visual evaluation of MA forest plots indicated overall reduction trends for six spray treatments reporting concentration outcomes: trisodium phosphate (_n_=48 trials), acidic electrolyzed oxidizing water (_n_=2), cetylpyridinium chloride (_n_=43), lactic acid (_n_=24), sodium bisulfate (_n_=11) and potable water (_n_=36). Moderate to considerable heterogeneity (_p_-value \textless=0.1 and _I_²\textgreater25%) was observed for these treatments. Methodological soundness of included studies was poor and a lack of studies conducted under commercial conditions was observed. Conclusions: Existing research on the efficacy of broiler carcass dips or sprays on _Salmonella_ prevalence or concentration is limited and heterogeneous, precluding the full benefits of robust meta-analyses. Larger randomized controlled trials conducted under commercial conditions are needed.
Bucher, O., Rajic, A., Waddell, L. A., Greig, J., & McEwen, S. A. (2012). Do any spray or dip treatments, applied on broiler chicken carcasses or carcass parts, reduce Salmonella spp. prevalence and/or concentration during primary processing? A systematic review-meta-analysis. Food Control, 27(2), 351–361. https://doi.org/10.1016/j.foodcont.2012.04.004 [Indexed using CAB Thesaurus terms], animals, Chordata, eukaryotes, reviews, vertebrates, meta-analysis, carcasses, meat, Meat Produce [QQ030], methodology, methods, Techniques and Methodology [ZZ900], Meat Producing Animals [LL120], data analysis, research, studies, lactate, lactic acid, Bacteria, bacterium, Food Contamination, food safety, prokaryotes, Proteobacteria, Residues and Toxicology [QQ200], birds, Information and Documentation [CC300], broilers, chickens, domesticated birds, fowls, Galliformes, Gallus, Gallus gallus, Phasianidae, poultry, databases, evaluation, characterization, randomized controlled trials, Salmonella, data banks, Enterobacteriaceae, Enterobacteriales, Food Processing (General) [QQ100], Food Service [QQ700], Gammaproteobacteria, pilot projects, processing