Object of researches - morphofunctional of change, which one descend in an organism of the pregnant cows, and give the basis for definition pregnancy, its terms and floor of the calf's. The purpose of researches - development to elaborate methods of early, expressive and objective diagnostic pregnancy, its terms and sex determination of the calf's on the basis of a complex of sonographic, ophthalmologic, crystallization, electroreflective of parameters. Methods of researches and instrumentation - sonographic, crystallization, electroreflective, immunofermention, ophthalmologic and rectal. The device of ultrasonic operating "Scanner 100S", sector sensor by an oscillation frequency 5,0 MHz, test - microscope "Arbor", device of an electroreflexotherapy (ПЕРТ-4М), immunofermrntion an analyser "Stat fax 2100". Theoretical and practical results - the designed allow objective (100 %) to troubleshoot early pregnancy behind rendition embryo on 30-37-й days after an insemination, programs to a method sonographicAre on the basis to a complex of diagnostic parameters to determine terms pregnancy with an error 1,6 days and on 71-80-й days after an insemination to anticipate a floor of the calf with accuracy 90,9 %. A quick test of early diagnostic pregnancy on nature of a crystallization of a secret of an entrance of the vagina by a test - microscope "Arbor" on 17-21-й days the ambassador the inseminations are given with 93,5 % of accuracy. Novelty of inculcation -for the first time on the basis of terms of rendition of embryonic bladders, embryo, tags of their palpitation, motions, embryonic shells, umbilical cord, peacetimes, organs embryo, bones and eye globe the program of sonographic diagnostic early pregnancy, its terms and inner sex determination of the calf's is designed. The methods of diagnostic pregnancy on a crystallization of a secret of an entrance of the vagina, electroconductivity biologically fissile points of ovaries and uterus are advanced. Diagnostic values of parameters of concentration of Progesterone in Serum of a blood of the cows have been defined and a comparative estimation of accuracy methods of early diagnostic pregnancy has been conducted. The methodical guidelines concerning early diagnostic pregnancy, its terms and sex determination of the calf's are designed. Degree of an intrusion - outcome і of researches have come in methodical guidelines concerning usage sonographic in reproduction agricultural and domestic animal, which one to reassure by technological advice of the Ministry of an agrarian policy of Ukraine, three multimedia of the programs and two patents are obtained. The outcomes of activity are inserted on a complex of the large cattle livestock enterprise "Agro-Souz" of Dnepropetrovsk. Range of usage - the designed methods of early diagnostic pregnancy, its terms and sex determination of the calf will be used in a veterinary obstetrics by the specialists of veterinary entities, hospitals and facilities.
