Immune system plays a very crucial role in the body of animals that helps the body to perform well and prevents the body by getting sick from external factors. It is a collection of several structures and processes inside the body which when function properly protects from the attack of viruses, bacteria and parasites. Immune system needs various types of vitamins and minerals to work healthy and in efficient manner. When the immune system gets weaker due to insufficient of vitamins the body becomes prone to external attacks. There is also chances of growing CRD diseases in cattles which affect the respiratory system. It also effects the health and there is a chance of increasing health related problems. In this situation we should provide external immunity booster supplement which nourishes the immune system and makes a way to work normal. P-Cold a herbal immunity modulator which works very effectively in this situation. It is a potent blend of many herbs like Berberis Aristata, Vitis Vinifera, Origanum Vulgare and olea europaea which all together improves the functioning of immune system and makes it healthy. With the consumption of this herbal immunity modulator supplement it benefits the body in many ways.