Abstract: An electro-ejaculator probe is inserted into the rectum of a restrained bovine bull. Electrical current is passed from electrodes located on the probe primarily to the nerves controlling erection and ejaculation. As little as possible, current is passed to the nerves registering pain. Electrical stimulation of these nerves results in ejaculation. Voids or pockets in the probe receive any fecal matter which might otherwise insulate the electrodes from the intestine wall. The ejaculated semen is collected for analysis or artificial insemination.

Abstract: Veterinary compositions of matter useful as vaccines in the biologic treatment of a multifaceted livestock disease syndrome which is commonly referred to as "shipping fever", the present compositions of matter include the killed bacteria associated with the cause of the disease syndrome preferably in a water/oil emulsion. The invention further provides a method for the prophylactic and therapeutic treatment of the shipping fever disease syndrome with the aforesaid compositions of matter.