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Volume 47, Number 1, February 2014

Investigation of gastrointestinal parasites of dairy cattle around Taiwan 

Chiu-Chen Huang, Lian-Chen Wang, Chien-Hung Pan, Cheng-Hsiung Yang, Cheng-Hung Lai

Received: January 20, 2012    Revised: March 16, 2012    Accepted: March 24, 2012   


Corresponding author:

Corresponding author. Department of Veterinary Medicine, National Chung Hsing University, 250, Kuo-Kuang Road, 40227 Taichung, Taiwan. 


Background and purpose: 

Parasitic nematodes are one of the most important causes of production losses in most cattle-producing countries of the world. The aim of the present study is to make a through estimate of helminth and protozoan infection prevalence in dairy cattle around Taiwan. 



Coprological techniques, including direct fecal smear, simple flotation, and simple sedimentation, were used to detect gastrointestinal helminths and protozoan in dairy cattle. A total of 1259 rectal fecal samples were collected from Holstein dairy cattle at 94 farms in 13 counties in Taiwan. 



The overall prevalence of gastrointestinal parasitic infection was 86.9%. The infection rates of protozoa, nematodes, trematodes, and cestodes were 81.3%, 7.9%, 1.6%, and 0.6%, respectively. Among all parasites, Buxtonella sulcata (61.7%) was the most predominant one, followed with Cryptosporidium spp. (32.6%) and Eimeria spp. (11.8%). There were significant differences in the prevalence of protozoa and nematodes between different age groups and distributional area groups.



The present study demonstrated that gastrointestinal parasitic infections occur frequently in dairy cattle around Taiwan, especially protozoan infections. The results indicated that a superior management system and regular anthelmintic treatment should be used for the control of parasitic infections in dairy cattle farms. 


Key words:

Dairy cattle, Gastrointestinal parasites, Prevalence, Taiwan