Therapeutic efficacy of zeta‐cypermethrin pour‐on for the treatment of biting and sucking lice in cattle under field conditions

Rothwell, J.; Hacket, Kristina; Ridley, I. S.; Mitchell, Lloyd C; Donaldson, C.; Lowe, L. B.

doi:10.1111/j.1751-0813.1999.tb11716.x

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…It is probable that increases in ambient temperatures in late winter/early spring may have contributed to this decline in numbers. 26,27 There was no marked difference in body weight gains across all trial sites between the untreated control and two treated groups. This confirms findings that low to moderate infestations of sucking lice fail to lead to significant improvements in animal production.…”

Section: Scientificmentioning

confidence: 88%

The efficacy of formulations of triclabendazole and ivermectin in combination against liver fluke (Fasciola hepatica) and gastro‐intestinal nematodes in cattle and sheep and sucking lice species in cattle

et al. 2002

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Section: Scientificmentioning

confidence: 88%

The efficacy of formulations of triclabendazole and ivermectin in combination against liver fluke (Fasciola hepatica) and gastro‐intestinal nematodes in cattle and sheep and sucking lice species in cattle

et al. 2002

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“…Deltamethrin, a type II pyrethroid, has been successfully used to control lice in cattle [13, 14], sheep [15] and goats [16] and is licensed for this purpose in various countries. The deltamethrin formulation which was used in the present report is licensed in Europe for flies and lice in dairy and beef cattle and ticks, lice, keds and blowfly strike in sheep.…”

Section: Discussionmentioning

confidence: 99%

Control of lice infestation in horses using a 10 mg/mL deltamethrin topical application

Castilla-Castaño

Vischi

Navarro³

et al. 2017

Ir Vet J

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BackgroundTwo open-controlled studies evaluated the tolerance and the efficacy of a 10 mg/mL deltamethrin-based pour-on solution (Deltanil®; Virbac, France) in treating (study 1) and preventing (study 2) natural Damalinia equi infestations in horses. In study 1, seven adult horses received 10 mL of the solution from mane to tail head on day 0 (D0). Four adult horses, living separately, served as non-treated controls. All were naturally infected. Lice burden was recorded by counting the number of live parasites, bilaterally, over seven anatomic regions. Lesional score was based on alopecia, crusts, papules/pustules, nodules/plaques, scales and wounds, each assessed on a 0–3 scale. Evaluation was performed on D0 and subsequently weekly until D56 in treated horses and on D0 and D56 in control horses. In study 2, six adult horses free of parasites were similarly treated on D-2 and D30. Two adult horses, naturally infested with D. equi and left untreated, were mixed with the treated horses from D0 to D60. Evaluation was performed similarly to study 1 on all horses, fortnightly until D60.ResultsNo adverse event was recorded in either study. In study 1, parasite and lesional scores of control horses were maintained on D56. Parasite scores of the treated horses were reduced by 98% on D7 and 100% from D15 to D56 (mean [SD]: D0 44 [58.4]). Lesional score in treated horses was reduced by 24, 82, 47, 91, 96, 93, 93 and 100% on D7, 15, 21, 28, 35, 42, 50 and 56, respectively (mean [SD]: D0 3.1 [1.8]).In study 2, the lice populations remained high in the two control horses throughout the study (max mean [SD]: D0 159 [151.3], min D45 34 [39.6]). On treated animals, all parasite counts were negative except on D15 (one louse found). The protection rate was 99.7% on D15 and 100% from D30 to D60.ConclusionsA single application of the 10 mg/mL deltamethrin preparation was effective and safe in the treatment and in the prevention of lice infestation in these horses. It was also effective in preventing new infestations for one month.

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Efficacy of topical administration of prallethrin-permethrin-piperonyl butoxide (Bronco® Equine Fly Spray) for the treatment and control of flies and other nuisance insects of horses

Genchi,

Kramer,

Valentini

et al. 2023

Parasitol Res

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Numerous biting and nuisance insects are a noted cause of discomfort and stress to horses. Pyrethrins and pyrethroids have been used for many years in numerous formulations for the control of insect pests in animals, humans and environment. There are, however, few studies reporting their field efficacy in horses. The aim of the present study was to evaluate the repellent activity of a spray formulation based on prallethrin and permethrin synergized with piperonyl butoxide (BRONCO® Equine Fly Spray, Farnam Companies, Inc., USA) against annoying and harmful insects for horses in field conditions. Nine horses of mixed breed were divided into 2 groups (treatment and control). Pre-treatment insect counts were compared to daily counts for 4 days post-treatment (pt). One minute after the administration of the product (day 0), all the horses were negative for the presence of insects. All counts up to the 6-h pt check remained negative for Hippobosca equina, tabanid flies and Simulium spp., showing 100% efficacy. This remained above 90% throughout the study. For the H. equina, the repellent efficacy remained > 99.7% for all 4 days pt, for tabanid flies > 93.3% and for Simulium spp. > 97.4%. The efficacy against Musca spp. decreased from 82.2% at day 0 to 62.2% at day 3. Treatment was well-tolerated. In conclusion, despite the low number of tested horses, Bronco® has demonstrated high insecticide and repellent efficacy and a good persistence, maintained for up to 4 days post-treatment, against the most common species of insects harmful for horses.

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Therapeutic efficacy of zeta‐cypermethrin pour‐on for the treatment of biting and sucking lice in cattle under field conditions

Abstract: Zeta-cypermethrin pour-on, given at 2.5 mg/kg, is an effective treatment for cattle lice control. Zeta-cypermethrin, and other synthetic pyrethroid pour-ons, are the treatment of choice to control B bovis.

Cited by 7 publications

References 26 publications

The efficacy of formulations of triclabendazole and ivermectin in combination against liver fluke (Fasciola hepatica) and gastro‐intestinal nematodes in cattle and sheep and sucking lice species in cattle

The efficacy of formulations of triclabendazole and ivermectin in combination against liver fluke (Fasciola hepatica) and gastro‐intestinal nematodes in cattle and sheep and sucking lice species in cattle

Control of lice infestation in horses using a 10 mg/mL deltamethrin topical application

Efficacy of topical administration of prallethrin-permethrin-piperonyl butoxide (Bronco® Equine Fly Spray) for the treatment and control of flies and other nuisance insects of horses

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