Browsing by Author "Petcu, Igor"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    IMPACTUL FACTORILOR ALIMENTARI ȘI METABOLICI ÎN REPRODUCEREA INDUSTRIALĂ A PĂSĂRILOR
    (CEP USM, 2024) Petcu, Igor; Balan, Ion; Demcenco, Boris; Roşca, Feodora; Gramovici, Ana
    For the economic efficiency of the poultry breeding industry, it is necessary to create and physiologically maintain the metabolism of the organism of the breeding flock according to the food variety. The main task of industrial poultry farming is the development and testing of bio logically active, economical and ecological feed substances that increase the reproductive pro perties and productivity of birds. One of the basic objectives in industrial poultry farming is to know, reveal and elucidate the biological, physiological and metabolic essence of the enhanced reproductive capacities of the parental stock. Thus, the effectiveness of industrial reproduction of birds is directly proportional to the development of technological, food and sexual disorders, which trigger interstitial metabolism dysfunctions. In this sense, great attention must be paid to the development and implementation of technologies capable of mitigating the consequences of metabolic dysfunctions. One of these approaches is systemic dietary, nutritional and pharma cological prophylaxis of metabolic disorders in birds of reproductive age.
  • Thumbnail Image
    Item
    Morfofuncționalitatea mitocondrială în evoluția spermatogenezei la mamifere
    (Editura USM, 2024) Balan, Ion; Surai, Peter; Marin, Paula Monica; Balacci, Sergiu; Roșca, Nicolae; Buzan, Vladimir; Petcu, Igor; Mereuță, Ion; Osipciuc, Galina; Popa, Valerian; Vîhrist, Ecaterina
    In spermatogenesis, mitochondria are particularly important for the development and maintenance of germ cells and the production of healthy gametes. Deficiencies in these processes lead to mitochondrial dysfunction and abnormal spermatogenesis. The classical roles of mitochondria in energy production, metabolism and apoptosis have been well defined, but they also have various other functions. Mitochondria are also involved in testosterone production, regulating proton secretion in the lumen to maintain an acidic state in the epididymis, and condensing sperm DNA. In the available literature on sperm mitochondria, it is increasingly recognized that the morphology and functional status of mitochondria has a significant impact on sperm characteristics. Although mitochondria are recognized as essential for sperm, their exact pathophysiological role and functioning are complex. Understanding and managing mitochondrial quality control could be a valuable approach for developing new strategies in the physiological evolution of spermatogenesis.