Abstract: A device and method for controlling ectoparasites on agricultural livestock is disclosed which gives improved long term application of a pesticidal composition directly to the most frequently infested areas on the livestock. The pesticidal device hereof comprises an elongated, flexible, synthetic resin carrier strip which includes an incorporated volatile or non-volatile pesticide. An attachment is provided for fastening the device in cantilever fashion from an appendage of or an object worn by the animal, or to a portion of an animal confinement area, so as to assure that the device comes into repeated or continuing contact with adjacent portions of the animal's body. The device is advantageously of a length for free swinging movement thereof in response to the natural movement of the animal, thereby releasing the incorporated pesticidal composition from the device for direct application to a relatively large portion of the animal's body.

Abstract: The invention is a unique procedure for chemical sterilization of male animals by injection of a suitable solution into both spermatic cords to cause sterilization with loss of libido and spermatogenesis. Chemical agents which have been found effective include weak acids and weak bases, lactic acid being preferred.Secondly, the invention is a procedure for chemical sterilization of male animals by injecting lactic acid directly into both testis causing both loss of spermatogenesis and libido.Thirdly, the invention is a procedure for chemical sterilization of male animals by injecting lactic acid into both caudel epididymis causing sterilization only.

Abstract: An injectable contraceptive vaccine, a method of preparing said vaccine and the method of preventing conception in mammals by use of said vaccine, is disclosed. A vaccine which stimulates the production of antibodies directed against a hormone essential to the reproductive cycle of a mammal is prepared by coupling such a hormone to a carrier to form a hormone-carrier conjugate. Conception in mammals is prevented by injection of such vaccine during the proper period of the reproductive cycle of said mammal.Specifically described is the vaccine prepared by coupling a hormone, such as estradiol-17 beta, with a protein and its use to sterilize a female of the canine species.

Abstract: An injectable contraceptive antiserum, a process of preparing said antiserum and the method of preventing conception in mammals by the use of said antiserum, is disclosed. An antigen which causes the production of antibodies directed against a hormone essential to the reproductive cycle of mammal is prepared by coupling such a hormone with a carrier to form a hormone-carrier conjugate. A mammal is injected with said conjugate, and the produced antiserum is recovered from blood obtained from said mammal. Conception in mammals is prevented by injection of such recovered antiserum during the proper period of the reproductive cycle of said mammal.Specifically described is the antiserum recovered from the blood of a mammal which has been injected with an antigen prepared by coupling a hormone, such as, estradiol-17 beta with a protein and its use to temporarily sterilize a female of the canine species.

Abstract: A virulent strain of Equine Rhinopneumonitis (ERP) Virus was passed for 50 passages through the Vero Cell Line (monkey Kidney) at 26.degree. C. At the end of this treatment, it had become attenuated so that a vaccine formed from the virus gave none of the usual ERP symptoms when horses were inoculated with the vaccine by the I. M. route, i.e., they showed none of the usual nasal and ocular discharges, no fever, no anorexia and the like. When the vaccinates were challenged with virulent virus, none of the clinical symptoms of Equine Rhinopneumonitis Virus appeared, while unvaccinated control animals, so challenged, contracted ERP within 3-4 days with all the classical symptoms.The vaccination of a mare prior to breeding and again during her pregnancy will prevent abortions caused by virulent ERP virus. Other horses should be vaccinated once a year in order to prevent the Equine Rhinopneumonitis disease complex. Foals may be vaccinated any time after 1 day of age even in the face of maternal antibody.

Abstract: An eyeshield for protecting an eye of a domestic animal or human from sunlight, insects and dust while permitting vision is formed of an upper light opaque lid covering portion joined to a lower eye protecting portion formed of a light and moisture permeable but insect and dust impermeable portion. A portion of the shield extends outwardly along the line of attachment between the upper and lower portions, thus acting as a sunshade and the novel sunshade is formed so as to have a convex shape outward from the eye when worn.