Abstract: A ball valve has a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with the chamber. A replaceable cartridge assembly is seated in the chamber and includes a generally spherical ball having a flow passage therethrough alignable with the inlet and outlet passages, an inlet valve seat, and an outlet valve seat. A cartridge body member extends about and couples the ball and the valve seats. A resiliently deflectable biasing member biases the inlet valve seat and the ball against the outlet seat. A resiliently deflectable biasing member acts upon the inlet end of the cartridge body and a deflector is movable between a first position in which the biasing member is substantially free from deflection and a second position in which the biasing member is deflected to bias the cartridge body and the outlet valve seat against the wall of the valve body chamber to effect a seat-to-body seal.

Abstract: The rate of growth and feed efficiency of ruminants is increased by adding to the feed of ruminants an effective amount of the trichloroethyl ester of an essential amino acid.

Abstract: The rate of growth and feed efficiency of ruminants is increased by adding to the feed of ruminants an effective amount of the trichloroethyl ester of an essential amino acid.

Abstract: Bloat, particularly feedlot bloat, in ruminants is treated and controlled by the administration of the antibiotic S 15-1. This antibiotic can also be employed to lessen digestive disturbances caused when the diet of the ruminant is changed.