Abstract
The paper has been devoted to study of gonadotropic hormone content dynamics in layer blood during ovu- latory cycle for it reference meanings range definition and determining of physiologic and endocrine mechanisms inter- relations that influence on ovulatory cycle. Total calcium level in layer blood has been given that is necessary for positive feedback creation between progesterone and impulse release of gonadotropin-releasing hormones (GRH). Follicle-stim- ulating and luteinizing hormones content in layer blood plasma and serum have been determined by solid phase immune enzymatic analysis and calcium content has been determined by biochemical method with flowing semi-automatic bio- chemical analyzer. Optimization of definition method has been suggested for hormone levels.
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