scholarly journals Experimental infection of native chicken with cattle tick Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae)

2019 ◽  
Vol 32 (1) ◽  
pp. 62-67
Author(s):  
Bahzad Mustafa
2019 ◽  
Vol 32 (1) ◽  
pp. 62-67
Author(s):  
Bahzad H. S. Mustafa

Rhipicephalus (Boophilus) annulatus is considered as one of the most widespread tick species of the world on several host including cattle. The current study has been conducted to evaluated infestation ability of larval R. annulatus on chicken growth and development, Indicated very few larvae quested or fed on indigenous adult chickens when comparison with the number of larvae which used in this study, and that the larval and nymph feeding period of these ticks was very long. The number of larvae feeding shows in hollows wings, while the number of feeding nymph investigate on head, wings and above of thigh, both larvae and nymph described on the same individual adult chicken, the engorged adult female not observed while the adult male notice on chickens. Designated the weight of feeding larvae and nymphs stage is 0.32±0.04 mg and nymph’s 2.73±1.22 mg. The weight of larvae and nymph stage under mattress and feeder’s chicken 0.27±0.21 and 2.52±1.75 mg respectively, shows not significantly when compared between the weight of feeding on chickens and the weight under mattress and feeder’s chicken by larvae and nymphs stage at (P < 0.05) values according chi-square. Experimental study shows not transmissions pathogens from incubating larvae, which got from engorged female infested with Babesia spp., to adult chickens when examined their blood by Giemsa stain.


Author(s):  
T.R. Kannaki ◽  
E. Priyanka ◽  
M. Abhilash ◽  
Santosh Haunshi

Background: Native chicken breeds are considered more disease tolerant than exotic chicken breeds especially for the bacterial diseases. Aseel, Ghagus and Vanaraja chicken breeds/ variety were evaluated for the disease tolerance/susceptibility pattern after experimental infection with P. multocida A:1 isolate. Methods: A total of 72 birds of three breeds viz., Aseel, Ghagus and Vanaraja (n=24 each) were divided into three groups. The birds were inoculated with 2.5x106 CFU/ml of virulent Pasteurella multocida A:1 isolate through intraperitoneal (I/P) and intranasal (I/N) routes at 12 weeks of age. Clinical signs, morbidity, mortality rates and lesions were observed in the infected birds. Result: The mortality rates were 83.3% in Assel breed against 100% in both Ghagus and Vanaraja breed in intraperitoneally infected groups. Upon intranasal infection, the mortality was 83.3% in Assel and Vanaraja breed against 100% in Ghagus breed. Aseel birds showed significantly better survivability and longer death time than Ghagus breed upon experimental infection with Pasteureall multocida A:1 isolate. Vanaraja breed showed tolerance comparable to Aseel in experimental infection via intranasal route.


1964 ◽  
Vol 54 (4) ◽  
pp. 633-641 ◽  
Author(s):  
R. J. Thorpe ◽  
P. Walker

A field study was made of the effects of γ BHC, Sevin, toxaphene and ronnel (fenchlorphos) used as sprays on the numbers of ticks infesting cattle at Shika stockfarm in the Northern Guinea Savannah zone of Nigeria.The tick population included Boophilus annulatus (Say), B. decoloratus (Koch), Amblyomma variegatum (F.), Hyalomma truncatum Koch and Rhipiccphalus simus simus Koch, and its distribution on the host is described.Significance tests of treatment difference were carried out for initial kill and reinfestation rate. In both dry- and wet-season trials toxaphene proved to be the most effective ixodicide. A satisfactory degree of control was given by γ BHC but not by Sevin or ronnel.It is concluded that spraying at 21- and 7-day intervals during the dry and wet seasons, respectively, with either toxaphene or γ BHC will maintain a stable, satisfactory level of tick parasitism and premunity to tick-borne diseases in the herd.


Author(s):  
Shawky Mohamed Aboelhadid ◽  
Samar Mahmoud Ibrahium ◽  
Walid Mahmoud Arafa ◽  
Lilian Nagy Maahrous ◽  
Abdel-Azeem Shaban Abdel-Baki ◽  
...  

2019 ◽  
Vol 12 (8) ◽  
pp. 1319-1326 ◽  
Author(s):  
Gaber E. Batiha ◽  
Ali H. El-Far ◽  
Amany A. El-Mleeh ◽  
Abdelwahab A. Alsenosy ◽  
Eman K. Abdelsamei ◽  
...  

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.


Parasitology ◽  
2011 ◽  
Vol 139 (2) ◽  
pp. 259-263 ◽  
Author(s):  
E. MIRANDA-MIRANDA ◽  
R. COSSIO-BAYUGAR ◽  
F. MARTÍNEZ-IBAÑEZ ◽  
R. CASASANERO-ORDUÑA ◽  
J. FOLCH-MALLOL

SUMMARYThe purpose of this study was to describe an unreported entomopathogenic fungus that naturally infects the cattle tickRhipicephalus (Boophilus) microplus(Acari: Ixodidae). Engorged female ticks, showed symptoms of fungal infection after controlled tick infestation of cattle. Infected ticks developed a distinctive dark colour, a pale mould grew over the cuticle and the ticks eventually died covered with fungal conidiophores. The responsible fungus was isolated and cultured on mycological medium and submitted to microscopic morphology, biochemical phenotyping and 18S rRNA ribotyping analyses, which identified it as aflatoxin-producingAspergillus flavus. Spores from the cultured fungus were experimentally sprayed over healthy engorged female ticks, obtaining an 80% prevalence of experimental infection of healthy ticks and their egg masses, the larval progeny after incubation under laboratory conditions was also infected. These results demonstrate thatA. flavusis the causative agent of the natural fungal disease of the cattle tickR. microplusdescribed here.


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