Journal ArticleDOI
Relationship between the excretion of protostrongylid larvae in sheep in north-west Spain and climatic conditions.
Pablo Díez-Baños,P. Morrondo-Pelayo,A. Feijoo-Penela,B. Carrillo-González,Ceferino López-Sández +4 more
TLDR
The relationship between different climatic factors (temperature, relative humidity and rainfall) and the pattern of lungworm larval excretion was studied in sheep under a continuous grazing pattern in North-west Spain, where the climate is intermediate between sub-humid Mediterranean with an Atlantic tendency and European Atlantic.Abstract:
The relationship between different climatic factors (temperature, relative humidity and rainfall) and the pattern of lungworm larval excretion was studied in sheep under a continuous grazing pattern in North-west Spain, where the climate is intermediate between sub-humid Mediterranean with an Atlantic tendency and European Atlantic. Over a period of one year, 44 animals were sampled once a month at random from a flock of 80 Galician breed sheep, all over 4 years old. Faeces were taken directly from the rectum and the number of first stage larvae per gram of faeces was determined for each animal, and the species of Protostrongylidae (Nematoda) identified. Larval excretion was irregular during the study. The prevalence and intensity of infection were greater in the colder months (40.9%; x = 12.3 +/- 40.4) and less in the warmer months (21.9%; mean = 0.7 +/- 2.7). The species of Protostrongylidae identified and prevalences (%) were Neostrongylus linearis (71.5), Muellerius capillaris (18.8) and Cystocaulus ocreatus (9.7). Between November and March, with low temperatures, the prevalence and intensity of parasitism with N. linearis and M. capillaris were greater than in the months with high temperatures (May to September). Multiple linear regression analysis showed statistical correlation between temperature, relative humidity and rainfall considered together and the number of N. linearis larvae per gram of faeces. Linear regression showed a correlation between the temperature and the percentage of sheep that passed M. capillaris. In general, the prevalence and intensity of infection of the sheep with N. linearis, M. capillaris and C. ocreatus larvae decrease when the temperature increases and increase when the relative humidity and rainfall increases.read more
Citations
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Bronchopulmonary nematode infection of Capra pyrenaica in the Sierra Nevada massif, Spain
Samer Alasaad,Patrocinio Morrondo,V. Dacal-Rivas,Ramón C. Soriguer,José E. Granados,Emmanuel Serrano,Xing-Quang Zhu,Luca Rossi,Jesús M. Pérez +8 more
TL;DR: Results of the present investigation provided foundation for the effective control of bronchopulmonary nematode infection in Iberian ibex.
Journal ArticleDOI
Protostrongylid infection in meat sheep from Northwestern Spain: prevalence and risk factors.
Ceferino López,Gonzalo Fernández,M. Viña,S. Cienfuegos,Rosario Panadero,L. Vázquez,Pablo Díaz,J. Pato,N. Lago,Vicente Dacal,Pablo Díez-Baños,Patrocinio Morrondo +11 more
TL;DR: This study showed that protostrongylid prevalence in sheep for meat production was determined mainly by a positive interaction with Dictyocaulus filaria infection; other factors that have influenced over protostrengthid infection were age, introducing external animals in the flocks, mixed management with goats and animal density in pastures.
Journal Article
A survey on annual infestation of sheep with lung worms based on fecal test and slaughter house study in tabriz
A Nemat Elahi,Moghadam Gh.A. +1 more
TL;DR: It is suggested to prevent from and treatment of sheep according to high rate of infestation to lung worms in this area and in autumn, infestation rate was higher than the other seasons.
Journal ArticleDOI
Lungworms in Alpine ibex (Capra ibex) in the eastern Alps, Italy: An ecological approach.
Rudi Cassini,Maria A. Párraga,Manuela Signorini,Antonio Frangipane di Regalbono,Enrico Sturaro,Luca Rossi,Maurizio Ramanzin +6 more
TL;DR: Based on results, ibex in the Marmolada massif seem to have an ecologically stable relationship with their lungworm community, and the newly developed diagnostic method showed a fair repeatability, representing an interesting tool to investigate the ecology of lungworms in protected species, such as the A. ibex.
Journal ArticleDOI
Evaluation of the use of pooled fecal samples for the diagnosis of protostrongylid infections in sheep.
M. Viña,Rosario Panadero,Pablo Díaz,Gonzalo Fernández,Ana Amorós Pérez,Pablo Díez-Baños,Patrocinio Morrondo,Ceferino López +7 more
TL;DR: A high sensitivity has been observed in flocks with medium or high prevalence, so pooled fecal samples can be used in those flocks that require an effective treatment regimen against these nematodes.
References
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Bioclimatología de Galicia
Alejo Carballeira Ocaña,César Devesa,José Carlos Rubén Retuerto Franco,Javier Enrique Santillán,Fernando Ucieda +4 more
Journal ArticleDOI
On some factors influencing the output of the larvae of Prostrongylids of sheep in natural infections
J. Cabaret,A. Dakkak,B. Bahaida +2 more
TL;DR: The age of the animals was an important cause of variation in the size of larval output; a rise of the latter was observed in pregnant ewes at the period of lambing.
Journal ArticleDOI
Seasonal prevalence of protostrongylid and Dictyocaulus species of lungworms in Awassi sheep in north-west Syria.
E. F. Thomson,G. Orita +1 more
TL;DR: The seasonal prevalence of protostrongylids was similar to that reported in Morocco where the climatic conditions are comparable to north-west Syria (Cabaret, Dakkak and Bahaida, 1980) and peak levels were found between January and March with 3, 26 and 25% of lambs, yearlings and adult ewes respectively shedding protostRongylid larvae.
Journal ArticleDOI
Influence of rainfall on lungworm infections in bighorn sheep.
TL;DR: Significant correlations were observed between levels of lungworm infection and total rainfall during April, May, and June of each year and in terms of terrestrial snail (intermediate host) populations.
Journal ArticleDOI
Influence of desiccation of faeces on survival and infectivity of first-stage larvae of Muellerius capillaris and Neostrongylus linearis.
TL;DR: Resistance of first-stage larvae to desiccation is a key factor in infectivity and may partly account for the geographical distribution of the two species of protostrongylids.