Functionally and biochemical characteristics of an organism and blood parameters in cattle in ontogenesis
Biological basis of ontogeny cattle are dynamic changes in functional systems and biochemical processes are characterized by certain laws, which is based on genetic programmed repression of certain genes and depression of others. For growing calf is more acceptable concept of dynamic rules. Steady-state rate is more typical of adult animals. The article presents information on the age dynamics of most physiological and biochemical characteristics in cattle during ontogeny. The paper stressed that their optimum at all stages of individual development is the key to maximizing the potential of productive qualities. Knowledge of the age norm is necessary for the analysis obtained in the experiment data, assessing the implications of shifts and their correct interpretation of that for cattle is an important basis for the direction of growth and health of livestock.