Spatial modeling of oestrosis in sheep in Guantánamo province, Cuba

Fonseca-Rodríguez, Osvaldo; Moya, Vilmaris Matos; Montano, Damarys N.; Centelles, Yosdany; Percedo, María Irian; Alfonso, P

doi:10.1016/j.smallrumres.2018.05.001

Cited by 5 publications

(4 citation statements)

References 28 publications

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“…Besides, a high prevalence was found in tropical sub-humid sites where temperature, annual rainfall, and humidity were 26°C, 900 mm, and 60-80%, respectively [14]. Furthermore, in tropical regions, most oestrosis risks were documented in the sites with high temperatures and lower rainfalls [15]. So far, oestrosis has not been reported in Ecuador or the Ecuadorian highlands.…”

Section: Introductionmentioning

confidence: 99%

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

et al. 2019

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Aim: This study aimed to determine the prevalence of Oestrus ovis in sheep meant for meat commercialization in the main slaughterhouse of the country. Materials and Methods: Between October 2015 and December 2015, we assessed the occurrence of Oestrus myiasis in the main slaughterhouse localized in Quito. In total, 80 sheep heads were randomly inspected and necropsied. Larvae were removed from nasal cavities and paranasal sinuses and cleaned. ANOVA (generalized linear model) was used to estimate the relationship between sex, age, and place of origin and presence or absence of parasite larvae. Results: Morphological identification confirmed that 19% (15/80) of the examined animals were positive for Oestrus ovis; from the positive cases, 21% were young animals <12 months old. We found that statistical differences by animal sex, males, were most infested 93% (14/15) than females 7% (1/15). Larvae's L2 were more abundant than other stages (62 of the total 149). 14 of the infested animals were from the Andean places at > 2500 meters above sea level (m.a.s.l.), and only one case from the coastal region at 250 m.a.s.l. with tropical environmental conditions. Conclusion: Our results showed evidence of the presence of myiasis caused by O. ovis in Andean and coastal places in Ecuador and its adaptation to different environmental conditions from that reported previously in temperate regions from Europe and Africa.

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Section: Introductionmentioning

confidence: 99%

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

et al. 2019

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“…As has been previously informed, Oestrus ovis is distributed worldwide (4) . However, the activity of the fly, the larval development, and the period over which it remains as a pupa on the ground are heavily influenced by the environmental climatic (12) , especially regarding a seasonality standard, which seems to be related to the severity of the temperatures in summer and the low pluviometric rates (18) . Indeed, the city of Ituiutaba displays favorable conditions for a rapid parasitic development and, therefore, the larvae presence was already expected to some extent.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Oestrus ovis (Diptera: Oestridae) in sheep from Ituiutaba, south-east region of Brazil

et al. 2021

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Among the diseases which can afflict the nasal cavities of small ruminants, oestrosis stands out. In Brazil, more specifically in its South-East region, the reports are limited only to the State of São Paulo and to the municipality of Araxá, Minas Gerais. Therefore, it has been sought to assess the parasitic prevalence of Oestrus ovis in sheep farmed in the municipality of Ituiutaba, Minas Gerais-Brazil, while correlating the larval size and stage, and its anatomical localization. Eighty-eight hemiheads of healthy Santa Inês/Dorper crossbreds Ovis aries have been used at random. The larvae in view were then collected and fixated to be quantified and analyzed in regard of size and stage of development. It is concluded that the oestrosis is an existing problem in the municipality of Ituiutaba, this being the first complete study on the prevalence of this parasite in the State of Minas Gerais. By anatomical distribution, only the differences of total larval averages between the frontal sinus and the ventral nasal meatus, the common nasal meatus and the nasopharynx have been significant. In size, the significant difference has been there only upon comparison between the size and the larval stage, information that is crucial for a better understanding of the cyclic progression, of the clinical symptomatology, and animal prophylaxis.

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“…Reports of oestrosis have come in from all over the globe, including many Asian nations as well as European and African nations bordering the Mediterranean [19]. From an epidemiological perspective, sheep and goats worldwide are infested by the disease has a substantial impact on the Iraqi small ruminant industry, resulting in enormous economic losses [20][21][22] the control of this condition depends on treatment with macrocyclic lactones and nitroxinil Reinfections are common, and controlling nasal bots is not so simple [23][24][25]. The present study aimed to conduct morphological and molecular characterization of O. ovis larvae obtained from goats at a slaughterhouse in Babylon city, Iraq.…”

Section: Introductionmentioning

confidence: 99%

Morphological and Molecular Detection of Oestrus ovis Isolated from Goats in Babylon Province, Iraq

Adhem,

Kreem

2024

UPJOZ

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Oestrosis caused by Oestrus ovis is a very impactful illness for the small ruminant industry in Iraq, resulting in substantial economic losses. The present study was conducted to characterize Oestrus ovis of Larvae morphologically and molecularly from goat at a slaughter house in Babylon province, Iraq. The study relied on the collection of 50 larvae at various developmental stages between November 2023, and March 2024. The morphological analysis was conducted with a stereomicroscope depend on distinct larval traits such as the dorsal and ventral position, spiracles, hooks, and cephalopharyngeal skeleton. The molecular characterization involved PCR and PGS techniques on the COX1 gene, focusing on a 330-bp section. In terms of morphology, the L1 larvae had unique mouth hooks, while the L2 larvae showed noticeable terminal stigmas. The most important traits of the L3 were the colour of their body parts and the existence of the spines. PCR analysis showed successful amplification at 330bp regions in 12 isolates. The PGS analysis found 12 unique local isolates that have genetic similarities with isolates from Spain and Czech Republic. In conclusion, this study highlights the significant important of Oestrus ovis in goats in Babylon province, Iraq.

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Spatial modeling of oestrosis in sheep in Guantánamo province, Cuba

Cited by 5 publications

References 28 publications

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

Prevalence of Oestrus ovis (Diptera: Oestridae) in sheep from Ituiutaba, south-east region of Brazil

Morphological and Molecular Detection of Oestrus ovis Isolated from Goats in Babylon Province, Iraq

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