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Acta Parasitologica

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Volume 61, Issue 1 (Jan 2016)

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Prevalence and risk factors associated to Eimeria spp. infection in unweaned alpacas (Vicugna pacos) from Southern Peru

Pablo Díaz
  • Corresponding author
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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/ Rosario Panadero
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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/ Rosalía López
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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/ Aida Cordero / Ana Pérez-Creo
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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/ Ceferino M. López
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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  • De Gruyter OnlineGoogle Scholar
/ Gonzalo Fernández
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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  • De Gruyter OnlineGoogle Scholar
/ Pablo Díez-Baños
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Patrocinio Morrondo
  • Investigación en Sanidad Animal: Galicia (Grupo INVESAGA), Facultad de Veterinaria, Departamento de Patología Animal: Sanidad Animal, Universidade de Santiago de Compostela, Lugo 27002, Spain
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Published Online: 2015-12-30 | DOI: https://doi.org/10.1515/ap-2016-0008

Abstract

A total of 350 faecal samples from unweaned alpacas over 3 months of age were collected from 23 herds in order to determine the prevalence of Eimeria spp. in Southern Peru and to identify the risk factors associated to Eimeria infection in young alpacas. Samples were examined by a flotation technique and the identification of risk factors was assessed by a logistic regression analysis. Sixty four percent of the examined animals shed Eimeria oocysts; herd prevalence was 96%, with an intra-herd prevalence of 60% (range 5.9-100%). Five different Eimeria species were identified, being E. lamae (91%), E. alpacae (87%) and E. punoensis (78%) the most prevalent; E. macusaniensis (35%) and E. ivitaensis (13%) were less common. Mixed-species infections were more frequent (78%) than single infections (22%). E. lamae was the most common monospecific infection and E. lamae/E. alpacae the most frequent association. The geographical area has a significant effect on Eimeria infection rates (74.9% wet Puna vs 37.4% dry Puna) as well as the breeding system (65.1% traditional vs 63.8% modern). In contrast, the sex of the animals (64.6% males vs 64.0% females) showed no influence on the prevalence of infection by Eimeria. The high prevalence found at both individual and herd level and the common presence of highly pathogenic Eimeria species may lead to important economic losses for alpaca breeders and could require the implementation of suitable control measures.

Keywords : Vicugna pacos; alpaca; Eimeria; prevalence; risk factors; Southern Peru

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About the article

Received: 2015-01-19

Revised: 2015-07-07

Accepted: 2015-09-14

Published Online: 2015-12-30

Published in Print: 2016-01-01


Citation Information: Acta Parasitologica, ISSN (Online) 1896-1851, ISSN (Print) 1230-2821, DOI: https://doi.org/10.1515/ap-2016-0008.

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