Description Colostrx is the colostrum supplement brand ranchers have trusted for more than 30 years â made with whole bovine colostrum, Colostrx CS delivers the guaranteed quality and quantity of immunoglobulins that calves need for the best start. Colostrx is a valuable necessity for increasing newborn calf immunity to disease and illness when natural colostrum is limited or of low quality. Licensed by the USDA as a veterinary biologic proving safety, purity, potency, and efficacy. Today, Colostrx is owned by the colostrum experts at SCCL. Since 1994, SCCL has been dedicated to providing all-natural bovine colostrum products to their customers worldwide.PRODUCT DETAILS: Colostrx CS provides 50g IgG to supplement or replace maternal colostrum. Made with whole bovine colostrum. Mixes instantly! Follow mixing instructions on package. We recommend feeding by bottle. You canât predict the weather, but you can feed Colostrx to make sure your calves have the energy they need to withstand any storm. Colostrx is high in colostral fat, a sustainable energy source for newborn calves to get up and suckle. Your calves need antibodies to stay strong and healthy within the first few critical weeks of life. Feed Colostrx to give your calves an immune boost to protect against a wide range of pathogens. Since we are made with whole colostrum, we never add in blood serum, milk, animal fat, coconut oil, vegetable oil or other ingredients found in alternative products that offer minimal benefit to the calf. This colostrum supplement (CS) is used to aid in the treatment of Failure of Passive Transfer of immunity (FPT). USDA Licensed to prove safety, purity, potency and efficacy.