Viability of Rhodococcus equi and Parascaris equorum Eggs Exposed to High Temperatures

Hébert, Laurent; Cauchard, Julien; Doligez, Pauline; Quitard, Lola; Laugier, Claire; Pétry, Sandrine

doi:10.1007/s00284-009-9497-5

Cited by 9 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Management of manure is important; it should be composted with temperatures reaching a minimum of 50–70°C maintained for over 8 h (Hébert et al . ). Generally, compost heaps require turning and maintenance at these levels for a minimum of 3 weeks to ensure destruction of helminth eggs throughout the heap.…”

Section: Helminth Control In Donkeysmentioning

confidence: 97%

Common helminth infections of donkeys and their control in temperate regions

Matthews

Burden

2013

Equine Veterinary Education

View full text Add to dashboard Cite

Roundworms and flatworms that affect donkeys can cause disease. All common helminth parasites that affect horses also infect donkeys, so animals that co-graze can act as a source of infection for either species. Of the gastrointestinal nematodes, those belonging to the cyathostomin (small strongyle) group are the most problematic in UK donkeys. Most grazing animals are exposed to these parasites and some animals will be infected all of their lives. Control is threatened by anthelmintic resistance: resistance to all 3 available anthelmintic classes has now been recorded in UK donkeys. The lungworm, Dictyocaulus arnfieldi, is also problematical, particularly when donkeys co-graze with horses. Mature horses are not permissive hosts to the full life cycle of this parasite, but develop clinical signs on infection. In contrast, donkeys are permissive hosts without displaying overt clinical signs and act as a source of infection to co-grazing horses. Donkeys are also susceptible to the fluke, Fasciola hepatica. This flatworm can be transmitted, via snails and the environment, from ruminants. As with cyathostomins, anthelmintic resistance is increasing in fluke populations in the UK. A number of the anthelmintic products available for horses do not have a licence for use in donkeys, and this complicates the design of parasite control programmes. As no new equine anthelmintic classes appear to be near market, it is important that the efficacy of currently effective drugs is maintained. It is important that strategies are used that attempt to preserve anthelmintic efficacy. These strategies should be based on the concept that the proportion of worms in a population not exposed to anthelmintic at each treatment act as a source of 'refugia'. The latter is an important factor in the rate at which resistance develops. Thus, it is imperative that parasite control programmes take into account the need to balance therapy to control helminth-associated disease with the requirement to preserve anthelmintic effectiveness. bs_bs_banner EQUINE VETERINARY EDUCATION 461 Equine vet.

show abstract

Section: Helminth Control In Donkeysmentioning

confidence: 97%

Common helminth infections of donkeys and their control in temperate regions

Matthews

Burden

2013

Equine Veterinary Education

View full text Add to dashboard Cite

show abstract

“…Parascaris eggs are rendered non‐viable by composting. The effect of composting is likely largely dependent on achieving high temperatures: in two studies, the viability of Parascaris eggs was rapidly reduced with exposure to temperatures of ≥60°C 138,139 and windrow composting resulted in eggs being rendered non‐viable within 8 days 140 …”

Section: Resultsmentioning

confidence: 99%

“…33 Parascaris eggs are rendered non-viable by composting. The effect of composting is likely largely dependent on achieving high temperatures: in two studies, the viability of Parascaris eggs was rapidly reduced with exposure to temperatures of ≥60 C 138,139 and windrow composting resulted in eggs being rendered non-viable within 8 days. 140 Delaying the development of AHR is primarily reliant on reduced anthelmintic use and preservation of refugia of susceptible genotypes to contribute to successive Parascaris generation.…”

Section: In Young Horses Are There Management Strategies That Reduce ...mentioning

confidence: 99%

BEVA primary care clinical guidelines: Equine parasite control

Rendle,

Hughes,

Bowen

et al. 2024

Equine Veterinary Journal

View full text Add to dashboard Cite

BackgroundThere is a lack of consensus on how best to balance our need to minimise the risk of parasite‐associated disease in the individual horse, with the need to limit the use of anthelmintics in the population to preserve their efficacy through delaying further development of resistance.ObjectivesTo develop evidence‐based guidelines utilising a modified GRADE framework.MethodsA panel of veterinary scientists with relevant expertise and experience was convened. Relevant research questions were identified and developed with associated search terms being defined. Evidence in the veterinary literature was evaluated using the GRADE evidence‐to‐decision framework. Literature searches were performed utilising CAB abstracts and PubMed. Where there was insufficient evidence to answer the research question the panel developed practical guidance based on their collective knowledge and experience.ResultsSearch results are presented, and recommendation or practical guidance were made in response to 37 clinically relevant questions relating to the use of anthelmintics in horses.Main limitationsThere was insufficient evidence to answer many of the questions with any degree of certainty and practical guidance frequently had to be based upon extrapolation of relevant information and the panel members' collective experience and opinions.ConclusionsEquine parasite control practices and current recommendations have a weak evidence base. These guidelines highlight changes in equine parasite control that should be considered to reduce the threat of parasite‐associated disease and delay the development of further anthelmintic resistance.

show abstract