Print E-mail
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. 



 

Methods:

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. 



 

Results:

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.
 



 

Conclusion:

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