All heat detection aids should be used strictly as a supplement to good visual observation and management. Frequently, cows are recorded as in heat when they are not. Research indicates standing heat identification is incorrect only about 3 percent of the time, while various other methods are incorrect up to 20 percent of the time. Remember, no heat detection aid can ever completely substitute for the keen, conscientious observer. Herd Health and A.I. Diseases can be a major factor as a cause of reproductive failure.
Problems can occur anytime, regardless of reproductive status.
Signs of problems are variable because of multiple disease possibilities. Examples of these signs include erratic or missing heat periods, abortions, abnormal discharge and others. Maintain records to help identify cows, health and accident incidents, heat cycles and durations, date and type of vaccination, and any other pertinent health data. Consult a veterinarian to obtain service and to prevent both general and reproductive disease. Purchase semen or bulls from reputable sources so you do not buy a disease problem.