Journal for Veterinary Medicine, Biotechnology and Biosafety
Volume
11, Issue 2, June 2025, Pages 3–7
ISSN 2411-3174 (print version) ISSN 2411-0388
(online version)
IMPACT
OF GIARDIA ON HEMATOLOGICAL PARAMETERS OF DOGS IN THE CASE OF SPONTANEOUS
INFECTION
Protyven R. A.
National Scientific
Center ‘Institute of Experimental and Clinical Veterinary
Medicine’, Kharkiv, Ukraine, e-mail: romaprotiven@gmail.com
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PDF (print version)
Citation for print version: Protyven, R. A.
(2025) ‘Impact of giardia on
hematological parameters of dogs in the case of spontaneous infection’,
Journal for Veterinary Medicine,
Biotechnology and Biosafety, 11(2), pp. 3–7.
Download
PDF (online version)
Citation for online version: Protyven, R. A.
(2025) ‘Impact of giardia on hematological parameters of dogs in the case
of spontaneous infection’, Journal for Veterinary Medicine,
Biotechnology and Biosafety, 11(2), pp. 3–7. DOI: 10.36016/JVMBBS-2025-11-2-1.
Summary. Giardia duodenalis is a globally distributed intestinal protozoan parasite that infects a
variety of hosts, including humans and domestic and wild mammals. G. duodenalis
is localized in the small intestine, mainly in the duodenum and jejunum, and
causes gastrointestinal disease in infected hosts. This study aimed to
determine the effect of giardia on the hematological parameters of infected
dogs. The study was conducted in a private veterinary clinic
‘ZooLux’ (Kyiv, Ukraine). Four groups of dogs were formed, in which
coproscopic and immunologic examinations confirmed spontaneous infection.
During the experiment, it was found that regardless of the presence or absence
of clinical manifestations of the disease, as well as the degree of parasite
load in the body of the animal, the infection was accompanied by changes in
hematological parameters. In dogs of the first experimental group, the
hematological changes were characterized by a slight leukocytosis (by 16.8%).
At the same time, in dogs of the second experimental group, when giardia was
detected in the feces, but in the absence of disease manifestations,
hematological changes were characterized by the appearance of anemia, where the
number of erythrocytes decreased (by 17.5%), hemoglobin content (by 5.6%),
hematocrit (by 9.2%), and the average concentration of hemoglobin in
erythrocytes (by 6.3%). Leukocytosis was also more pronounced (by 23.2%). In
dogs of the third experimental group, in which the disease was manifested by
severe diarrhea, hematological changes were characterized by severe anemia,
accompanied by a decrease in the number of erythrocytes (by 22.2%), hemoglobin
content (by 13.3%), hematocrit (by 14.3%), average hemoglobin concentration in
erythrocytes (by 16.1%), as well as a decrease in platelets (by 27.8%) and an
even greater increase in the number of leukocytes (by 46.3%)
Keywords: protozoan
infection, giardiasis, blood, Giardia duodenalis
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