INFLUENCE OF EARLY PIGLET WEANING ON NEURAL APPARATUS OF WALL OF STOMACH FUNDUS AND JEJUNUM
Influence of early piglet weaning on some parametres of morphogenesis of wall of stomach fundus and jejunum and their neural apparatus was under study. Morphology of neurons of myenteric nervous plexus of stomach fundus of piglets in case of early and traditional weaning was studied. The following assessment parametresof neurocytemorphogenesis were taken into consideration: nuclear volume, volume of neuroplasm of nerve cells, nucleo- neuroplasm correlation, morphology of dendritic apparatus. Having analyzed the results of research material, we concluded that, at the heart of heterochrony of postnatal and prenatal neurocyte morphogenesis is genetically justifies direct correlation connection between levels of morphofunctional maturity of neural and innervating structures. Analysis of our research results showed that morphological neurocyte changes to this or that extent happen within the whole postnatal animal ontogenesis, however, the greatest dynamism is seen at the beginning of postnatal ontogenesis. Only the period from maturity to old age of animals is characterized by relevant stability of neurocyte morphology. Significant short-term changes of morphology of nerve cells due to changes of function intensity and conditions of living have been experimentally shown.