Evaluation of rates of pathological changes…
© 2014. Volodina V.V., the Caspian Research Institute of Fisheries, Russia; Grushko M.P., Fedorova N.N., Astrakhan State Technical University, Russia
Evaluation of rates of pathological changes in parenchymatous organs for the Caspian seal (Pusa caspica) embryo in modern conditions of the Caspian Sea ecosystem
Unfavourable changes occurring in the body of a Caspian female seal under influence of disease and harmful environment factors affect its embryo health. To assess the physiological status of the Caspian seal, and the status of its habitat, embryo parenchymatous organs were examined using histological methods. The research findings confirmed the active replacement of embryo tissues in all the investigated organs with connective tissue. The most severe histopathological disorders were registered in the kidney and liver. The revealed pathological changes in the parenchymatous organs of the examined Caspian seal embryos testify to their unsatisfactory state due to pathological changes in their mothers’ bodies caused by unfavorable environmental conditions and other factors…
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Photo: a pregnant seal, Caspian Seal Rehabilitation and Research Centre, Iran