Mathematical assessment of physiological indicators of Nile tilapia Oreochromis niloticus vitality

This is the authors' abstract. We don't add key points for this paper.

Mathematical assessment of physiological indicators of tilapia vitality. Research to identify the most viable fish using functional loading. Phenol was used as a stress factor. Experimental data on the calculation of the number of surviving individuals at certain points in time, depending on blood parameters, were mathematically processed using the survival comparison method. The use of blood indices is necessary as a means of diagnosis and prognosis in pathological processes in order to achieve objective results in fish farming practice. As one of the indicators of the adaptive capabilities of cultured fish, the authors propose to use a blood score on a five-point scale.