Effect of polyphenol extract on performance, serum biochemistry, skin pigmentation and carcass characteristics in broiler chickens fed with different cereal sources under hot-humid conditions

Abstract

This study investigated the interaction between polyphenols with different cereal sources and their effects on performance, serum biochemistry, corticosterone levels and carcass characteristics in broiler chickens reared under hot-humid environment. Newly hatched coloured broiler chicks (n = 240) were randomly divided into six groups with five replicates of two different cereal sources, namely corn and broken rice-sorghum combined, and three levels of pomegranate peel polyphenol extracts (PPP) 0, 50 and 100 mg/kg in each cereal groups. Birds were maintained under standard management conditions for six weeks during hot-humid environment (Temperature: 29–36 °C; Relative Humidity: 69–80%). Fortnight body weight and feed consumption were recorded and serum biochemical constituents were estimated at 28 and 42 days of age. The body weight gain was significantly (p < 0.05) higher in broken rice-sorghum diet than in corn diet. The supplementation of polyphenols increased the skin and shank pigmentation. Serum protein, lipids and minerals showed significant difference due to cereals, polyphenols and their interactions. Corn-fed birds had significantly higher visceral organs weight than the alternate grain-fed broilers. The serum corticosterone levels were significantly reduced in the PPP supplemented groups than the control, it could be concluded that, supplementation of 50 mg/kg polyphenol extract from pomegranate peels improved production performance in broilers fed broken rice-sorghum as cereal source under hot-humid conditions.

Novel strategies to improve chicken performance and welfare by unveiling host-microbiota interactions through hologenomics

“…COR measured in feathers is used as a biomarker of accumulative stress ( Bortolotti et al, 2008 ), as chronic levels of COR are associated with detrimental effects on growth and related biological traits ( Scanes, 2016 ). The increase of COR with the PH diet at day 7, and the disappearance of this effect throughout the study contrasts with previous studies that reported a reduction of serum and feather COR in broilers fed with polyphenol extracts ( Gong et al, 2018 ; Gopi et al, 2020 ).…”

Potential Application of Cornelian Cherry Extract on Broiler Chickens: Growth, Expression of Antioxidant Biomarker and Glucose Transport Genes, and Oxidative Stability of Frozen Meat

“…Additionally, serum protein and globulin concentrations were not significantly different between treatments and were within the normal range [ 56 ]. Similarly, supplementation of broiler chickens with polyphenol extract did not affect their serum protein and globulin concentrations [ 57 ]. In addition, supplementation with CCE had no significant effects on the chemical composition (DM, CP, EE and Ash) of meat; these results are in accordance with Gopi et al [ 40 ].…”

Impacts of polyphenols on laying hens' productivity and egg quality: A review

“…A polyphenol extracted from grape revealed potent effects in improving serum biomarkers associated with cardiovascular disorders (Annunziata et al, 2019). Punica granatum polyphenols possess antioxidant and anti-inflammatory effects (Gopi et al, 2020). In addition, polyphenol-rich berries can decrease blood pressure and positively affect high-density lipoprotein levels (Erlund et al, 2008).…”