EFFECTIVENESS OF PHYTOBIOTIC OILS DIETARY ADDITION AS ANTIOXIDANT ON BROILER GROWTH PERFORMANCE, GUT HEALTH, AND IMMUNE RESPONSE TO ALLEVIATE COLD STRESS

This work aims to reveal the influence of Phytobiotic dietary addition as an antioxidant on broiler growth and health status, to alleviate cold stress. 600 (Ross-308) one‑day‑old broiler chicks were distributed into six treatments, and four replicates were as follows: T1- control: 0.0% (basal diet), T2- BHT (butyl-hydroxy-toluene)150 mg/kg basal diet, Phytobiotic oils: T3- Betony oil (0.6 ml/kg diet). T4- Peppermint oil (0.6 ml/kg diet), T5- Basil oil (0.6 ml/kg diet), T6- 0.6 ml/kg diet combination of 0.2 ml/kg diet of each Phytobiotic oil. The dietary results additive of (Betony, Peppermint, and Basil) oils and their combination had significantly higher body weight, body weight gain (BWG), feasibility, goblet cells No., villus height, villi and crypt width of the small intestine, duodenum pH and digestive enzymes (amylase, lipase, and trypsin) concentrations, high count of  Lactobacillus bacterial, serum total protein, high density lipoprotein (HDL), antioxidant enzymes activities in serum superoxide dismutase, glutathione peroxidase, Catalase and total antioxidant capacity. However, mortality%, bacterial counts of E.Coli in the small intestine, glucose, total cholesterol, low density lipoprotein (LDL), triglycerides, and heat shock proteins (40 and 70), corticosterone hormone concentration, H/L ratio, and Malondialdehyde were significantly lower compared to the BHT-T2 and the control T1. In turn, all treatments of oil additives had achieved superiority in all characteristics.