Effects of fipronil againstRhipicephalus(Boophilus)annulatus

Amithamol, Krishnan Kavillimakkil; Sunil, Athalathil Ramankutty; Kumar, Karapparambu Gopalan Ajith; Nair, Suresh; Soorya, V. C.; Chandrasekhar, Leena; Juliet, Sanis; Ravindran, Reghu; Ghosh, Srikant

doi:10.1080/01647954.2012.734331

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…GABA generates an inhibitory effect on the associated muscles and caused a marked decrease in the frequency of spontaneous action potentials [33,34]. Therefore, GABA and its receptor were considered effective targets for acaricidal drugs for tick population control [35]. Understanding, the acaricide pathway will be important in the development of novel acaricides as well as for the extended control of the cattle tick [36].…”

Section: Discussionmentioning

confidence: 99%

In vitro study of ivermectin efficiency against the cattle tick, Rhipicephalus (Boophilus) annulatus, among cattle herds in El-Beheira, Egypt

et al. 2019

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Background and Aim: Ivermectin (IVM) has been used in veterinary practice to control different parasitic infestations over the past two decades. This study aimed to re-assess the acaricidal effects of IVM, as well as to evaluate its efficacy against Rhipicephalus (Boophilus) annulatus by determining the mortality rate, γ-aminobutyric acid (GABA) level, and oxidative/ antioxidative homeostasis (malondialdehyde [MDA] levels and glutathione S-transferase [GST] activities). Materials and Methods: Adult females of Rhipicephalus (Boophilus) annulatus were picked from cattle farms in El-Beheira Governorate, Egypt. Ticks were equally allocated to seven experimental groups to assess the acaricidal potential of IVM chemotherapeutics in controlling R. (B.) annulatus. IVM was prepared at three concentrations (11.43, 17.14, and 34.28 μM of IVM). Results: Mortality rate was calculated among the treated ticks. In addition, GABA, GST, and MDA biomarker levels were monitored. The data revealed a noticeable change in GST activity, a detoxification enzyme found in R. (B.) annulatus, through a critical elevation in mortality percentage. Conclusion: IVM-induced potent acaricidal effects against R. (B.) annulatus by repressing GST activity for the initial 24 h after treatment. Collectively, this paper reports the efficacy of IVM in a field population of R. (B.) annulatus in Egypt. Keywords: acaricidal, glutathione S-transferase, ivermectin, malondialdehyde, Rhipicephalus (Boophilus) annulatus, γ-aminobutyric acid.

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Section: Discussionmentioning

confidence: 99%

In vitro study of ivermectin efficiency against the cattle tick, Rhipicephalus (Boophilus) annulatus, among cattle herds in El-Beheira, Egypt

et al. 2019

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“…(B.) annulatuswas determined as 12.78 ppm by Amithamol, et al [36]. The LC 50 estimated was 0.2% lower than the DD.…”

Section: Egypt J Vet Sci Vol 51 No 2 (2020)mentioning

confidence: 99%

In vitro Analysis of the Efficacy of Selected Commercial Acaricides on The Cattle Tick Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae)

Akande¹,

Adenubi

Garba³

2020

NIDOC-ASRT

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T ICKS are important to the Nigerian livestock industry because of their ability to cause huge economic loss directly or indirectly. Chemical acaricides have played important roles in control of tick infestation for many years but development of acaricide resistance as being reported worldwide is a huge problem facing the livestock industry and the veterinarians. Thus, this study evaluated the efficacy of available commercial acaricides on Rhipicephalus (Boophilus) annulatus. Using Adult Immersion Test (AIT): the LC 50 , inhibition of oviposition, control and resistance rates, gradation of tarsal reflexes were determined for ticks treated with different acaricides at five different concentrations the discriminating dose (DD) (the manufacturer's recommended dose) and four other different concentrations of two below and two above the DD with the aid of prohibit regression. The association between weight and number of eggs laid was analyzed by linear correlation. Macrocyclic lactone(66.7%), Phenylpyrazole (62.5%), Cypermethrin (62.5%), Formamidine(33.3%) and Phenylpyrazole(13% egg production), Macrocyclic lactone (18% egg production), Cypermethrin(20% egg production), Formamidine(49% egg production) have the highest to lowest percentage control and oviposition inhibition values respectively. The LC 50 of (Formamidine), (Phenylpyrazole), (Synthetic pyrethroids), (Macrocyclic lactone) against adult R. (B.) annulatus were 100, 8000, 2300 and 6000ppm respectively.The demonstration of acaricide resistancedevelopmentas demonstrated by the ticks in laying of eggs after dipping in acaricideis a call to the need for discovery and use of alternative tick control methods with good therapeutic dose and the need for continuous evaluation of available acaricide.

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Effect of the formulation with fipronil and fluazuron on the reproductive biology and ovaries histopathology of Rhipicephalus microplus engorged females

Secchis¹,

Vale²,

Rodrigues

et al. 2022

Parasitol Res

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Effects of fipronil againstRhipicephalus(Boophilus)annulatus

Cited by 3 publications

References 25 publications

In vitro study of ivermectin efficiency against the cattle tick, Rhipicephalus (Boophilus) annulatus, among cattle herds in El-Beheira, Egypt

In vitro study of ivermectin efficiency against the cattle tick, Rhipicephalus (Boophilus) annulatus, among cattle herds in El-Beheira, Egypt

In vitro Analysis of the Efficacy of Selected Commercial Acaricides on The Cattle Tick Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae)

Effect of the formulation with fipronil and fluazuron on the reproductive biology and ovaries histopathology of Rhipicephalus microplus engorged females

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