A RUMEN BYPASS COMPOSITION CONTAINING A BIOACTIVE SUBSTANCE AND A METHOD FOR ITS PREPARATION

摘要

A rumen bypass composition containing a bioactive substance capable of releasing said bioactive substance into the post rumen portion of the digestive system of a ruminant without introducing into the rumen of the digestive system is disclosed. The composition is in the form of beadlets and comprises of a core consisting of a bioactive substance; a hydrophobic coating material, which completely encapsulates the core to avoid interaction within the rumen of a ruminant; an adjuvant hydrophobic in nature having a melting range 50-80 DEG C added to the coating material to improve thermal resistance wherein said beadlets have a size of about 2 to 8 mm, the amount of said bioactive material being in the range of 30 to 60% of the weight of the beadlet, the amount of said coating material is in the range of from 40 to 80% by weight and the amount of said adjuvant being in the range of from 5 to 50% based on the weight of said coating material. The method preparation comprises of mixing an aqueous bioactive substance with a coating material, heating the mixture under constant stirring at a temperature in the range of 55 to 80 DEG C to produce a molten mass, allowing drops of said molten mass to fall from a height through precooled air over a cold surface to obtain said composition in the form of beadlets.