On the first stage experiments are conducted by the aim of establishment on how many higher the real indexes of fresh sperm and dilute protective environments after moving away of cellular debris, extraneous cages and dead cages. On the second stage, comparison of basic physiological indexes of the fertilization faction got from deconservation sperm and compared to the corresponding indexes of з sperm was conducted, that was not subject to the special cleansing procedure. Difference between research and control groups, in relation to survivability of sperm and index of absolute survivability of sperm was statistically reliable (Р < 0,001), as for fresh sperm so for sperm, that carried freezing and thawing in liquid nitrogen. Faction of sperm, that has impregnating ability potentially, as fresh sperm so that was subject to freezing and thawing substantially differ in the row of biological indexes of sperm, that creates the necessity of introduction of new additional descriptions for the analysis of sperm. Index of survivability of sperm, that potentially has impregnating ability at deconservation sperm rose on three hours or on a 32,8 percent’s . Index of absolute survivability of sperm, that potentially has impregnating ability rose on 8,19 conditional units. The modernized method of estimation of quality of sperm of bulls is offered. It is set that treatment of sperm with the use of gradients of closeness exceeds the indexes of activity, to survivability and absolute survivability as at fresh standards of sperm so at deconservation standards of sperm, that gives an opportunity more objectively to describe quality of sperm. Results over of researches of biological quality of sperm of bulls of meat blackly-pied and red-pied suckling breed are brought depending on the method of treatment of tests. Additional descriptions of analysis sperm are entered, they can become the major criteria of estimation of full value and impregnating ability.