Abstract: A syringe has a sensor for sensing physical contact between a syringe needle and the syringe. As the sensor detects that a syringe needle has just been installed into the syringe, a counter is set to “zero”, indicating the number of injections given with the installed needle. The counter automatically and cumulatively counts each injection given to the animal during a period of continuous physical contact between the syringe and the syringe needle. When the number of cumulatively counted injections equals a predetermined maximum number of injections, a syringe needle change warning mechanism delivers a needle change warning to the operator of the syringe.

Abstract: A system and method for automatic recordation of information relating to administration of medicines to animals are accomplished by a transmitting syringe simultaneously injecting and marking an animal while transmitting, responsive to actuation of the transmitting syringe, a first signal containing information relating to the actuation of the transmitting syringe and the resulting injection of the animal. An electronic identification device (EID) such as a bolus, ear tag or subcutaneous implant is attached to the animal and provides a unique electronic identification of the animal. A receiver receives both the first signal from the transmitting syringe and the electronic identification of the animal, as provided by the EID. Information contained in the respective signals is maintained in a computer database for review and analysis.

Abstract: A plurality of medicine families having particular application to a species of animals are selected. A plurality of colors are selected, each color corresponding to a respective family of the plurality of medicine families. Containers containing the medicines from within the families of medicines are marked with a corresponding color.