Abstract: The present invention provides computer-assisted methods, including interactive systems, for tracking and correlating of breeding, veterinary care and performance data relating to livestock animals. In particular, the methods are especially useful for tracking breeding and veterinary care histories of individual animals or the collective herd or flock and relating the histories to performance parameters of the animals and to expected or desired performances. The methods of the invention can allow the operator to be alerted by deviation of the actual performance parameters from desired performances so that feed, medications, vaccinations, husbandry conditions, food safety etc of the animals may be adjusted or corrected accordingly.