Shakhova Y. Physiological swap regularities in the ovaries during spontaneous sexual cycle and heat induction in the cows and heifers

The investigation object is ovaries, cow and mature heifers blood serum at the various sexual cycle stages and heat induction by 'Estrophan' preparation. The subject of scientific research is morphological, functional, endocrine and histological swaps in the ovaries during the spontaneous sexual cycle and heat induction. The investigation methods include morphological and statistical analysis, clinical, endocrine, histological and analytical procedures. Scientific novelty. For the first time morphological and functional swap dynamics in cow ovaries was investigated by 'Estrophan' preparation administration during each day of the spontaneous sexual cycle. Practical significance of the test.. The fulfilled investigations deepen and widen modern knowledge in 'Estrophan'-induced physiological swap regularities in the cow ovaries during the spontaneous sexual cycle and heat stimulation by the above-mentioned preparation. The test execution results in definition of the optimal period for the biological procedures.