Abstract: A composition of matter comprising particles which contain choline chloride to be administered in a rumen-protected and post-ruminally effective form, each particle comprising a core which contains choline chloride and a protective coating surrounding the core and protecting choline chloride by ruminal activity while allowing its release into the post-rumen portion of the digestive tract of a ruminant. The core mainly consists of choline chloride in the form of a dry, crystalline powder and, in combination, the protective coating surrounding the core comprises an outer, continuous layer mainly consisting of carnauba wax and an inner, continuous layer consisting of an hydrophobic substance. A feed pellet containing the composition of matter and a premix for feed which contains the composition of matter. A premix for feed which contains feed pellets containing the composition of matter. Mash feed in unpelletted form containing the composition of matter.

Abstract: An apparatus for forming composite pellets containing active ingredients encapsulated in encapsulating material for the controlled release of the active ingredient in the treatment of humans, animals or plants that is capable of the following steps: producing solid granules containing encapsulating material and active ingredient; generating a flow of granules; heating the granules in flight so as to melt a portion of encapsulating material located at the surface of each granule, of melted encapsulating material spreading on the surface of each granule to form a substantially uniform surface layer so as to confer on the granules the form of pellets; cooling the pellets in flight so as to solidify at least the surface layer; collecting the pellets.

Abstract: A veterinary composition in form of sustained release microcapsules containing erythromycin thiocyanate as active ingredient is disclosed. In the use, said composition is mixed with standard feedstuff in a ratio of 100/200 g per 100 kg (quintal) feedstuff. A process for preparing said composition is also disclosed.