Effects of different triticale inclusion levels on broilers’ growth parameters: A meta-analysis
Abstract
Triticale is currently used in poultry nutrition as an alternative energy source to conventional cereals like maize and wheat. Many articles emphasized controversial results regarding its inclusion levels on broiler growth parameters. This study aimed to evaluate the overall impact of triticale and its appropriate incorporation level on the growth performance of broiler chickens via a meta-analysis. In February and April 2022, papers investigating the influence of triticale on broiler's live body weight (LBW), body weight gain (BWG), feed intake (FI), and feed conversion ratio (FCR) were identified on Google Scholar, PubMed, and Science Direct. Based on the eligibility criteria of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, 19 articles were recorded and divided into 62 experiments according to the inclusion percentages of triticale. Using the random-effects models, Hedges’ g effect size of dietary triticale treatment was calculated to determine the standardized means difference (SMD) at a 95 % confidence interval (95 % CI). The triticale inclusion in the diet increased the broiler's BWG, FI, and FCR but decreased the broiler's LBW. The meta-regression showed that there was a positive correlation between the inclusion of triticale from 0 to 20 % and the broiler's LBW and FI. Although the funnel plot and the Egger linear test suggested significant publication bias for the LBW factor, this study remains valuable for understanding the…
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Evidence Hub reads this as a meta-analysis, done in animal, not in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
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