Mixed invasions with ectoparasites on pheasants from Republic of Moldova and their impact on hematological indices
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ZAMORNEA, Maria, ERHAN, Dumitru, RUSU, Ştefan, CHIHAI, Oleg, BONDARI, Lidia, ŢÎGANAȘ, Ana, CHIHAI, Nina. Mixed invasions with ectoparasites on pheasants from Republic of Moldova and their impact on hematological indices. In: Sustainable use, protection of animal world and forest management in the context of climate change, 12-13 octombrie 2016, Chișinău. Chișinău: Institutul de Zoologie, 2016, Ediția 9, pp. 184-185. ISBN 978-9975-3022-7-2. DOI: https://doi.org/10.53937/9789975302272.92
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Sustainable use, protection of animal world and forest management in the context of climate change
Ediția 9, 2016
Conferința "Sustainable use, protection of animal world and forest management in the context of climate change"
Chișinău, Moldova, 12-13 octombrie 2016

Mixed invasions with ectoparasites on pheasants from Republic of Moldova and their impact on hematological indices

DOI: https://doi.org/10.53937/9789975302272.92

Pag. 184-185

Zamornea Maria1, Erhan Dumitru1, Rusu Ştefan1, Chihai Oleg1, Bondari Lidia1, Ţîganaș Ana2, Chihai Nina3
 
1 Institutul de Zoologie al AŞM,
2 Universitatea de Stat din Tiraspol,
3 Liceul Teoretic „Lucian Blaga”, Bălţi
 
Proiecte:
 
Disponibil în IBN: 14 noiembrie 2018



Teza

Parasitological study of wild birds has a multilateral importance to the development of prophylactic measures, scientifically substantiated, with the aim of keeping populations healthy. Birds are hosts of a rangeof dangerous parasitic disease agents to human and domestic animals, can serve as transmitters and thereby cause considerable economic damage. Gamasidmites and some species of malofags, parasitizing on poultry and wild birds, fulfilling its role as vectors of pathogens. It is important to highlight mixt invasions at wild birds. Mixt invasions study presents one of the current problems of contemporary parasitology and ecology. Species composition of parasites in wild birds may influence considerably on their population dynamics, especially during intervals of time. It is proven that the conditions of tests, some species of ectoparasites are able to keep and transmit long time infectious arbovirosis agents (АкбаевМ. Ш. идр., 2000, Toderaş I. ş. a., 2008, Zamornea Maria, 2009). Many measures aimed at increasing the number of hunting animals will not be enough, because parasitic diseases donot only retain growth and development, but also make the capture easier and their mortality. Therefore studying the parasitic fauna on wild animals is highly significant. To determine parasite fauna at pheasants, parasitological studies were conducted in different biotypes. Sampling was carried out singly and in groups by the methods of Dubinin M., 1955, Luncaşu M., Zamornea M. (Patent of invention. 3441 G2, MD, A01 M 1/20 BOPI nr 12/2007). Ectoparasiteswere collected from live birds, according to a new process that is more informative. The collected material was subsequently examined with magnifying glass MBS-9 (ob.14x2) and Novex microscope Holland B ob. From 20-40 WF 10x / 20mm. Hematological examination was automatically performed using the appliance model PCE-210 (ERMA INC) and automatic counting leukocyte formula “S.Plius - 4”. The aim of the research was to determine the level of infestation with ectoparasites at common pheasant (Phasianuscolchicus) and to determine the impact on hematological poliparasitosis. It was determined the number of erythrocytes, hemoglobin, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, mean corpuscular volume, platelet count, mean platelet volume, number of leukocytes, monocytes, granulocytes and eosinophils, according to specialized classical methods. As a result of performed parasitological investigations in different biotypes of Moldova was established that ectoparasitic fauna of pheasants consists of 8 species of malofags (Eomenacanthusstramineus, Goniodescolchicus, Menopongallinae, Cuclotogastercinereus, Goniocoteschrysocephalus,Goniocotesgallinae, Goniodesdissimilis, Lipeuruscaponis), flea species (Ceratophylushirundinis) and two species of gamasid mites (Dermanyssusgallinae, Dermanyssushirundinis). Impact quantification of mixed invasions with ectoparasites (biting, fleas, gamasid mites) shows a decrease of hematological indices: RBC - by 20%, the amount of hemoglobin (HGB) - 10.8%, mean corpuscular hemoglobin (MCH) - with 7.1%, the mean erythrocyte hemoglobin (MCHC) - by 13.1%, mean corpuscular volume (MCV) - by 15.3%, platelet (PLT) - 23.7%, mean platelet volume (MPV - 12.5% in the infected group compared the control group. The analysis of WBC counts results reveals an increase of leukocytes at wild birds in the infected group with 28.9%, monocytes - 9.7% granulocytes - by 9.5% and eosinophils - 9.1% compared with the control group. The increase of quality and quantity level of parasitic antigens (9.1% at infected pheasants) in the infested body indicates the impact of parasitic agent with host organism. Therefore, hematological indices reveals a state of spoliation of wild birds (pheasants) in the infected group, caused by mixed invasions with ectoparasites. Birds infected with ectoparasiteswere diagnosed with anemia, caused by reducing the number of red blood cells, hemoglobin and platelet count. Low platelet count is due likely to the increase of the level of infestation, and on the feeding place of parasites have been settled hemorrhages. The increased percentage of eosinophils can be used as a marker in the diagnosis of mixed invasions with ectoparasites. Aknowledgement: The work was performed within the project 15.817.02.12F financed by Academy of Sciences of Moldova.