Vol. 9, Special Issue 1, Part G (2025)

Heat stress has harmful effect on the animal’s physio-biochemical, hormonal, antioxidant activity and immunity of animals which hampers the overall productive potential of animals. There is an urgent need to address the problem of heat stress so that the productivity of animals may be maintained up to some extent. Antioxidants are added in animal’s diets as part of nutritional management to minimize oxidative damage during heat stress (Chauhan et al., 2020). Now a days a number of feed additives, such as niacin, vitamin A,C, E, selenium (Se) and chromium (Cr)are added in animal’s diet to reduce the adverse consequences of heat exposure by preventing oxidative damage in the animals experiencing heat stress (Chauhan et al., 2020). Selenium (Se) is dietary trace element which acts as an essential co-factor of glutathione peroxidase. Dietary selenium supplementation has been demonstrated to improve gastrointestinal health, reproductive physiology, and production performance during heat stress (Zheng et al., 2022). Chromium (Cr) is essential micro mineral which is vital for the metabolism in animals (Lashkari et al., 2018). The dietary supplementations of Cr in heat stressed calves helps in maintaining their health and immune system (Shan et al., 2020). Further research is urgently required to study the combined effect of Se and Cr on productive and reproductive potential of cattle exposed to thermal stress.