Effects of dietary inclusion of chromium propionate on growth performance, intestinal health, immune response and nutrient transporter gene expression in broilers

Khawar Hayat (1) , Bello Musa Bodinga (2) , Di Han (1) , Xin Yang (1) , Qingzhu Sun (1) , Lotfi Aleya (2) , Mohamed M. Abdel-Daim (3, 4) , Xiaojun Yang (1)

1 College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
2 LCE - Laboratoire Chrono-environnement (UMR 6249)
3 KSU - King Saud University [Riyadh]
4 Suez Canal University

The intent of the present study was to evaluate the effect of chromium (Cr3+) as chromium propionate on growthperformance, organ index, immune response, intestinal morphology and nutrient transporter gene expression inbroilers. One-day-old broiler chicks (n = 756) were divided into six experimental groups of 126 chicks; eachgroup was further divided into 7 replicates (18 chicks/replicate). All birds were offered corn-soybean diets supplemented with Cr3+ at 0, 0.10, 0.15, 0.20, 0.25 or 0.30 mg/kg. Dietary inclusion of Cr3+ at various levels yieldedsignificantly better growth performance and organ index in birds. Similarly, antibody titre against Newcastle disease and avian influenza H5 at various ages was found to be significantly higher in birds that received 0.15 mg/kgCr3+ in the diet. Significant results with respect to villus height (VH), crypt depth (CD) and VH:CD were observedin all groups that received Cr3+ in the diet compared to control. Moreover, it was observed that different levels ofCr3+ supplementation of the diet also increased the expression of the nutrient transporter genes SGLT1, GLUT2,rBAT and CAT1 in broilers. The findings of the present study suggest that dietary inclusion of Cr3+ at various levelsmay have beneficial effects on growth performance, immunity, intestinal morphology and nutrient transporter

Mots clés: Broilers; Chromium; Growth performance; Organ index; Antibody titre; Gene expression

Domaines: Sciences de l'environnement

Khawar Hayat, Bello Musa Bodinga, Di Han, Xin Yang, Qingzhu Sun, et al.. Effects of dietary inclusion of chromium propionate on growth performance, intestinal health, immune response and nutrient transporter gene expression in broilers. Science of the Total Environment, 2019, 10 p. ⟨10.1016/j.scitotenv.2019.135869⟩. ⟨hal-02420154⟩