Potential environmental consequences of administration of ectoparasiticides to sheep

Beynon, Sarah A.

doi:10.1016/j.vetpar.2012.03.041

Cited by 26 publications

(12 citation statements)

References 114 publications

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“…NSAIDs are one of several categories of VPs that may pose a risk to nontarget species through environmental contamination. Others include parasiticides and their nontarget impact on vertebrates and invertebrates in dung, soil, and watercourses (18); and more broadly, the human health implications of antimicrobial resistance in environmental bacteria associated with large-scale antibiotic use in food animal production (19).…”

Section: Vulnerable Vulturesmentioning

confidence: 99%

One Health approach to use of veterinary pharmaceuticals

Margalida¹,

Bogliani²,

Bowden³

et al. 2014

Science

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Section: Vulnerable Vulturesmentioning

confidence: 99%

One Health approach to use of veterinary pharmaceuticals

Margalida¹,

Bogliani²,

Bowden³

et al. 2014

Science

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“…The significant increase in earthworms found in some treated faecal samples might be caused by either unbalanced competition, particularly from reduced numbers of dung beetles 44,45 , or by changes in the microbial communities in the faeces of animals treated with SP products, as reviewed elsewhere 24 . The increased densities of faecal Salmonella spp., coliforms, heterotrophic and proteolytic bacteria that have been reported in slurry from SP-treated faeces might be to the advantage of earthworms.…”

Section: Discussionmentioning

confidence: 94%

“…Whereas MLs have been the focus of most scientific attention in relation to faecal invertebrates, there is growing evidence that a range of other animal treatments can have deleterious effects 11,20–24 . Triclabendazole (TCBZ) is a member of the benzimidazole family of anthelmintics, which is rapidly removed from the blood stream, metabolised in the liver and excreted in the bile as the active compound triclabendazole sulfoxide (TCBZ-SO) and the inactive metabolite triclabendazole sulfone (TCBZ-SO 2 ), with subsequent excretion in the faeces 25 .…”

Section: Introductionmentioning

confidence: 99%

Adverse effects of routine bovine health treatments containing triclabendazole and synthetic pyrethroids on the abundance of dipteran larvae in bovine faeces

Gilbert

MacGillivray

Robertson

et al. 2019

Sci Rep

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Macrocyclic lactone treatments for livestock can have detrimental effects on the arthropod populations in livestock faeces. For the last twenty years, avoidance of these products has been a standard recommendation on livestock farms that are managed for wildlife by the Royal Society for Protection of Birds (RSPB). However, the continued decline in the populations of birds (in particular the red-billed chough Pyrrhocorax pyrrhocorax) that are dependent on dung invertebrates on islands in the Inner Hebrides of Scotland prompted us to investigate the effects of livestock treatments that are commonly used on these islands. We conducted a replicated field plot study over two years to quantify the effects of livestock treatments containing copper, deltamethrin and triclabendazole on invertebrate density in pooled, artificial faecal pats on the island of Islay. We found that the density of arthropod larvae was significantly reduced by the triclabendazole and deltamethrin treatments in both years and by as much as 86% when the treatments were combined. Copper-containing boluses did not consistently affect abundance of arthropod larvae. These results suggest that veterinary treatment of livestock might contribute to a reduction in the food supply of chough.

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“…The primary families of acaricides are macrocyclic lactones, amidines, organophosphates, phenylpyrazole, pyrethroids, and growth regulators (Table 2). These products may be applied topically as a dip or poured or sprayed on an animal (Beynon 2012b). They may also be administrated as an oral drench; an intraruminal bolus, by injection; or as an impregnated ear tag.…”

Section: Parasiticide Medications Used On Ruminant Livestockmentioning

confidence: 99%

Controlling the Introduction and Augmentation of Parasites in and on Domesticated Livestock

Alonso-Díaz

Torres-Acosta

Sandoval-Castro

et al. 2013

Issues in Agroecology – Present Status and Future Prospectus

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Parasites are one of the most important threats to domesticated livestock worldwide. For several decades, their control has been based only on therapeutic interventions using chemical products at fixed intervals throughout the year. Results have demonstrated that dependence on these chemical products, as a single form of control, is not economically and ecologically sustainable. The problem has been augmented due to the emergence of endoparasite and ectoparasite populations resistant and multiresistant to the primary families of chemical products used to control them. Yet, these chemicals continue to be overused as the primary method for parasite control. Even more, their toxicity to animals, environmental contamination, and economic cost are of increasing concern. This limited approach to parasite control has environmental consequences with likely negative impacts to human and animal health. For example, most endectocides used to control parasites (endoparasites and ectoparasites) in domesticated animals are eliminated in the milk produced by females. Thus, there is strong concern regarding human consumption of dairy products containing such chemicals. Currently, market demands focus on healthy livestock production with emphases on the high standards in animal health and welfare based on quality production practices. The sustainable production of domesticated livestock needs strong changes, such as considering agroecologically oriented as well as novel approaches for parasite control. Thus, the use of existing drugs should be more strategically implemented and combined with other nonchemical alternatives for ruminant livestock. New strategies for controlling parasites in ruminant livestock should begin with the premise of not eliminating or eradicating parasitic organisms, but instead basing actions on economic thresholds (similar to IPM strategies for agricultural crops). In this review, we discuss the problem and current situation regarding parasites and their control using ranching operation methods. We discuss regions where the problem of chemical resistance is of strong concern and include the ecological and socioeconomic effects of parasite control (or lack therefore). We present information about novel approaches such as improving the nutritional status of the host and biological control methods for integration with domestic livestock in order to decrease the use of and reliance on chemical products.

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Potential environmental consequences of administration of ectoparasiticides to sheep

Cited by 26 publications

References 114 publications

One Health approach to use of veterinary pharmaceuticals

One Health approach to use of veterinary pharmaceuticals

Adverse effects of routine bovine health treatments containing triclabendazole and synthetic pyrethroids on the abundance of dipteran larvae in bovine faeces

Controlling the Introduction and Augmentation of Parasites in and on Domesticated Livestock

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