Eucalyptus and 1,8-Cineole in Poultry Nutrition: A Review of Their Potential as Phytogenic Feed Additives

Abstract

Feed additives are ingredients that typically assist feed digestion. Some essential oils, such as oregano, cinnamon, thyme, and eucalyptus, are known to have natural antibacterial activity and other properties that could be effective in value-added to animals. Oil of eucalyptus is a heterogenous blend of monoterpenes, sesquiterpenes. It has been revealed that eucalyptus oil contains a handsome amount of 1,8-cineole. Growth performance, carcass features and relative weight of different organs, hematological parameters, and feed conversion ratio of broiler chicks are the performance parameters on which the eucalyptus oil influence is seen. Tannins play a negative role in eucalypts oil. Dietary PFA supplementation has had a substantial impact on digestibility and intestinal microbiota. The dominance of eucalyptus oil in chicken feed additives such as heat stress and when challenged with the Velogen ic Newcastle Disease virus. The antioxidant properties of 1,8-cineole against long-term dl-polychlorinated biphenyls have been found to suppress. When compared to pure 1,8-cineole, the protective effects of 1,8-cineole microcapsules have been found. The phytochemical control of poultry coccidiosis with eucalyptus oil showed a significant effect and improvement.