Parasite faecal egg counts in equine veterinary practice

Nielsen, Martin K.

doi:10.1111/eve.13548

Cited by 12 publications

(8 citation statements)

References 51 publications

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“…FECs were measured as a proxy for patent cyathostomin infection. 123 FEC was carried out using a modified McMaster technique 124 on 5 g of faeces diluted in 70 mL of NaCl solution with a density of 1.2 (sensitivity of 50 eggs/g). Immediately after homogenising, 0.5 mL aliquots of the solution were added to both chambers of a McMaster slide.…”

Section: Methodsmentioning

confidence: 99%

Species interactions, stability, and resilience of the gut microbiota - Helminth assemblage in horses

Boisseau¹,

Dhorne–Pollet²,

Bars-Cortina³

et al. 2023

iScience

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Section: Methodsmentioning

confidence: 99%

Species interactions, stability, and resilience of the gut microbiota - Helminth assemblage in horses

Boisseau¹,

Dhorne–Pollet²,

Bars-Cortina³

et al. 2023

iScience

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“…Una vez obtenidas las heces de los 10 potros y potrancas, fueron procesadas en el laboratorio del rancho a través de la técnica de McMaster modificada (Zajac y Conboy, 2012), para obtener el número de huevos por gramo de heces (HPG) y así establecer la carga parasitaria de los animales (Nielsen, 2021).…”

Section: Estudio Parasitoscópicounclassified

Caracterización De La Microbiota Fecal en Caballos Con Ciatostomosis en México

Martínez-Ortiz-de-Montellano

Márquez-Mota

Montes-Carreto

et al. 2023

Trop Subtrop Agroecosyst

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Background: The excess of antimicrobials and anthelmintics cause important dysbiosis processes in equines, as well as resistance phenomena mainly in the communities of bacteria, archaea, protozoa, and helminths. The study of the equine microbiome is becoming more and more relevant to understand the biotic processes of the gastrointestinal tract. In colon and cecum, the role of cyathostomins as part of the microbiome is still unexplored. While interaction with certain bacterial groups may be key to the understanding of parasitism. Objective: To characterize the microbiota in feces of yearling naturally infected with cyathostomins in a quarter-horse farm in Sierra de Lobos, Guanajuato, Mexico. Methodology: Weights were measured and obtained the parasite burden in feces, from which samples were transfer and processing in the laboratory for DNA extraction and later sent for sequencing and analysis. Results: Average weight of the colts was 399 kg, and the average weight of the fillies was 432 kg. All horses were high shedders: 1,390 ± 698 egg per gram of feces. Alpha and beta diversity analyses indicated no differences within the microbial community between colts and fillies. Main bacteria at Phyla in both groups (females; males) were Bacteroidetes (37%; 37%), Firmicutes (46%; 37%), Verrucomicrobia (4%; 10%), Spirochaetes 5%; 4%) and Proteobacteria (1%; 3%). At Class level the principal identified groups were Bacteroidia (31%; 31%), Clostridia (43%; 35%), at Order level are Bacteroidales (31%; 31%) and Clostridiales (43%; 35%). Main bacteria at Family level were Ruminococcaceae (19%; 11%), Lachnospiraceae (15%; 6%) and non-assigned family Bacteriodales (19%; 21%). The most abundant non-assigned bacterial Genra were Bacteroidales (26%; 27%), Ruminococcaceae (10%; 5%) y Lachnospiraceae (9%; 6%); the assigned bacterial Genra were Clostridium (5%; 9%) and Treponema (4% y 3%). The most abundant non-assigned bacterial Species were Methanocorpusculaceae sp (19%; 22%), Pedobacter sp (10%; 5%), Bacteroidales sp (9% y 6%) and Prevotella sp (4% y 3%); the assigned bacterial species were Fibrobacter succinogenes (2%; 1%), Succinispira mobilis (1%; 1%). Implications: It is suggested that environmental factors and feeding are aspects that regulate the parasitic burden and the bacterial composition in this studied population. This is a short communication of the finding of the components of the microbiota and is relevant in Mexico for future studies, however it is imperative to explore the composition of the metacommunity of a horse free of cyathostomines. Conclusion: Considering that these nematodes are in the cecum and colon, where this microbiota was inferred, and that it is not known whether this interaction is beneficial or detrimental, the study of the microbiome is imperative. In the study, no horse presented clinical signs or colic due to the presence of nematodes.

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“…2 Extensive resistance to benzimidazole (BZM) and pyrimidine products has been reported in cyathostomin parasites, with recent evidence suggesting additional resistance to macrocyclic lactones (MLs). 3 Conversely, ascarids, such as Parascaris equorum, show widespread resistance to MLs but also latterly some evidence of resistance to BZM and pyrimidine products. 3 With dual-and cross-resistance also being detected, 4 it is now clear that with the waning efficacy of anthelmintics as a result of global resistance and no new products on the horizon, the ability to control parasites in grazing species is in jeopardy.…”

mentioning

confidence: 99%

“…3 Conversely, ascarids, such as Parascaris equorum, show widespread resistance to MLs but also latterly some evidence of resistance to BZM and pyrimidine products. 3 With dual-and cross-resistance also being detected, 4 it is now clear that with the waning efficacy of anthelmintics as a result of global resistance and no new products on the horizon, the ability to control parasites in grazing species is in jeopardy. Accordingly, it is vital that action is taken to preserve the remaining efficacy of available anthelmintics, while also exploring more sustainable, chemical-free methods of parasite control.…”

mentioning

confidence: 99%

“…Extensive resistance to benzimidazole (BZM) and pyrimidine products has been reported in cyathostomin parasites, with recent evidence suggesting additional resistance to macrocyclic lactones (MLs) 3 . Conversely, ascarids, such as Parascaris equorum , show widespread resistance to MLs but also latterly some evidence of resistance to BZM and pyrimidine products 3 …”

mentioning

confidence: 99%

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