Hematological Changes Associated with Theileria orientalis Infection in Korean Indigenous Cattle

The Korean Journal of Parasitology
Suhee KimJinho Park

Abstract

Tick-borne pathogens can cause serious problems in grazing cattle. However, little information is available on tick-mediated diseases in cattle grazing on mountains. Thus, this study aimed to understand the potential problems related to tick-borne diseases in grazing cattle through the investigation of prevalent tick-transmitted infections, and their associated hematological changes, in terms of season and grazing type in Korean indigenous cattle (=Hanwoo). Hanwoo cattle from 3 regions of the Republic of Korea (=Korea) were either maintained indoors or placed on grassy mountains from spring to fall of 2014 and 2015. Cattle that grazed in mountainous areas showed a greater prevalence of tick-borne infections with an increased Theileria orientalis infection rate (54.7%) compared to that in non-grazing cattle (16.3%) (P<0.001). Accordingly, the red blood cell (RBC) count and hematocrit (HCT) values of grazing cattle were significantly lower than those of non-grazing cattle throughout the season (P<0.05). Moreover, RBC, hemoglobin (Hb), and HCT of T. orientalis-positive group were significantly lower than those of T. orientalis-negative group (P<0.05). T. orientalis is a widespread tick-borne pathogen in Korea. Grazing of cattle in...Continue Reading

References

Dec 1, 1995·The Journal of Veterinary Medical Science·Y TeradaH Yamanaka
Jul 21, 1998·Annals of the New York Academy of Sciences·G SaviniV Langella
Jul 29, 1998·Comparative Immunology, Microbiology and Infectious Diseases·M OnumaC Sugimoto
Feb 18, 2003·Veterinary Research·Levi Hakwale MakalaHideyuki Nagasawa
Nov 1, 1985·Parasitology Today·A D Irvin
Jan 6, 2005·Veterinary Parasitology·Katsuro HagiwaraHiroshi Iwai
Mar 17, 2011·New Zealand Veterinary Journal·A M J McFaddenD Geysen
Mar 19, 2013·Parasitology International·Seung Won KangKi Yoon Chang
Oct 18, 2013·Molecular Biology and Evolution·Koichiro TamuraSudhir Kumar
Feb 21, 2014·Parasites & Vectors·Piyumali K PereraAbdul Jabbar
Aug 8, 2014·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Thillaiampalam SivakumarNaoaki Yokoyama
Jul 7, 2015·New Zealand Veterinary Journal·J G WattsK L Hickey
Apr 15, 2016·Acta Parasitologica·Tatsunori MasataniTomohide Matsuo
Nov 7, 2016·Parasitology Research·Jinho ParkKyoung-Seong Choi

❮ Previous
Next ❯

Methods Mentioned

BETA
PCR
PCRs
electrophoresis

Software Mentioned

Basic Local Alignment Scarch Tool ( BLAST )
SPSS
MEGA

Related Concepts

Related Feeds

Babesiosis

Babesiosis is caused by parasites of the genus babesia, which are transmitted in nature by the bite of an infected tick. Discover the latest research on babesiosis here.