Assessment of phagocytic activity of tilapia blood cells under hormone-induced stress

The paper presents an assessment of the phagocytic ability of blood cells of Nile tilapia Oreochromis niloticus L. under the hormonal induction of stress with range of duration. It has been revealed that Staphylococcus aureus is phagocytosed by leukocytes, platelets, and erythrocytes of tilapia blood in direct smears. The phagocytic capacity of the cells has been quantified.

The effect of fish skin mucus on hemostasis indicators of some animal species in vitro in comparison with collagen

Modern pharmacology is actively searching for new sources of natural peptides and developing new methods of their synthesis for further introduction of protein preparations into production, so it is necessary to identify the natural sources of biologically active peptides, such as fish skin mucus.

The influence of cortisol on some immunological parameters of carps

This paper presents an assessment of changes in some indicators of the immune system in the control and experimental group of carp under the influence of endogenous cortisol. It was found that when the level of cortisol increases the activity of cellular immunity in fish created by leukocytes increases as well. Other indicators of the immunological status decrease with the increase of this hormone.



Blood fibrinogen dynamics in fish under stress

The paper presents the research results of blood fibrinogen in carps under stress. It is established that the coagulation processes have accelerated under hypoxic stress by the 4th day of the experiment.

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