A system for observing and predicting a physiological state of an animal hasbee provided. Said system comprising: a computer comprising a processor andbeing operatively connected to a database, at least one sample providingdevice for repetitively providing at least one sample of a body fluid of theanimal, an analysis apparatus for analyzing the at least one sample, so as toobtain at least one sample value of at least one parameter of the body fluid,a data interface for repetitively entering the sample value of the at leastone parameter in the database, wherein the database is adapted to storemultiple database entries representing the sample value of the at least oneparameter at various points in time, and wherein the processor is programmedto: perform at least one mathematical analysis of the at least one samplevalue, and selecting, on the basis of the at least one mathematical analysis,the point in time for providing a subsequent sample and performing asubsequent analyses of said subsequent sample for at least one of theparameters.
