Abstract: A universal joint to transmit force from a tool to a workpiece. A driver attachable to the tool has a spherical cavity. A plurality of inwardly facing protrusions are formed in the cavity. Each protrusion has a pair of conical sidewalls separated by an angled ramp. A driven socket has a sphere formed on one end. The sphere has a plurality of channels. The sphere is received in the spherical cavity in the driver and the protrusions in the cavity are received in the channels. The drive webs forming the channel engage the protrusions when the driver is angularly offset from the driven socket.

Abstract: Natamycin biomass comprising 5-60% natamycin, most preferably 25-60% natamycin, and methods for forming the biomass, are disclosed. The natamycin biomass can be mixed with compatible carrier to form a premix comprising 0.2-5% natamycin. The premlix may be mixed with animal feed to form an animal feed mixture comprising cracked grain and 1.1-110 ppm of natamycin.

Abstract: A method of enhancing weight gain and feed efficiency in a ruminant, comprising administering to the ruminant a feed efficiency enhancing amount of a choline-containing composition, wherein the choline-containing composition is encapsulated in such a manner as to reduce decomposition of the choline-containing composition in the rumen of the ruminant when administered.

Abstract: A method for rapidly determining mold growth on feed is disclosed. The method comprises placing a sample of feed containing mold spores in a closed container; maintaining an environment that will support rapid mold growth; measuring the change in concentration of oxygen and/or carbon dioxide; and correlating the concentration change with the rate of mold growth.