Effect of temperature on the development of the free-living stages of horse cyathostomins.
Vet Parasitol Reg Stud Reports
; 28: 100687, 2022 02.
Article
em En
| MEDLINE
| ID: mdl-35115120
ABSTRACT
Cyathostomins are considered as the most prevalent and pathogenic parasites of grazing horses. The development on pastures of the free-living stages of these gastrointestinal worms is particularly influenced by outdoor temperature. Understanding the bionomics of free-living stages is an important prerequisite to implement mathematical models designed to assess the parasitic risk for grazing equids. The aim of this study was to assess the effect of 3 constant temperatures under laboratory conditions (10 ± 1 °C, 23 ± 2 °C, 30 ± 2 °C) and one fluctuating temperature under outdoor conditions (mean 17 ± 4 °C) on the minimum time taken by cyathostomin eggs to develop into first/second stage larvae (L1/L2) then into infective third stage larvae (L3) in horse faeces. According to the temperatures, the minimum time taken by eggs to develop into L1/L2 was between 1 and 3 days and into L3 between 4 and 22 days. At 10 °C, the development time of eggs into L3 was the longest and at 30 °C the fastest. The results were consistent with historically available data and their compilation should lead to the improvement of parameterised models assessing the parasitic risk period in grazing equids.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Temperatura
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Vet Parasitol Reg Stud Reports
Ano de publicação:
2022
Tipo de documento:
Article