Influence of different forms of flavonoid on growth performance and gut morphology of broiler: A meta-analysis

Abstract

The objective of this study was to determine the effects of different forms of dietary flavonoid on the production performance and intestinal morphology of broiler. A database was built from published literature regarding the various forms of dietary flavonoid. The database contained a total of 103 data points from 39 studies that met the criteria. The different forms of dietary flavonoid were considered as fixed effects, and various studies were treated as random effects, and p-values were used as the model statistics. Results revealed that both dried powders and crude extract of flavonoid increased (p<0.05) average daily gain and villus height of ileum but did not give any significant effects on other parameters. Flavonoids can maintain the health of villus, so it provides the increment of absorption of feed and affects average daily gain. The conclusion of this paper is that the different forms of flavonoids have a positive impact on the production performance and gut morphology of broiler. The best form of flavonoid is through the extraction method base on the enhancement of average daily gain and gut morphology conditions.