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  • Title: Study on the Ixodid ticks species diversity (Acari: Ixodidae) on domestic ruminants in different agro-climatic regions of Tamil Nadu.
    Author: Elango A, Shriram AN, Raju HK, Kumar A.
    Journal: Trop Anim Health Prod; 2024 Feb 10; 56(2):73. PubMed ID: 38336895.
    Abstract:
    A survey of Ixodid tick species diversity on domestic ruminants was conducted in seven agro-climatic regions of Tamil Nadu State, India. Tick surveys were conducted on domestic ruminants such as cattle, buffalo, sheep, and goat in seven districts of Tamil Nadu. The overall tick infestation was 38.8%, 5.8%, 14.6%, and 40.8% on cattle, buffaloes, sheep, and goats, respectively. A total of 8068 ticks from 18 species belonging to four genera were recorded. Overall, Haemaphysalis intermedia was the predominant (51.38%) tick species which has a wide host range. The most prevalent tick species in cattle and buffalo were Rhipicephalus (B.) microplus (25.41%) and Rhipicephalus haemaphysaloides (56.69%), respectively. Haemaphysalis intermedia was the most prevalent in ticks in sheep (70.35%), goat (70.35%), and dog (55.79%). In the present study, local anomalies such as the ectromely of one leg and the absence of adanal plates were observed in Rh. haemaphysaloides. The study also found that local anomaly such as protuberances in the hind tarsal and atrophy of the adanal plate was observed in Rhipicephalus (Boophilus) microplus. In addition, a general anomaly with three atrophy caudal appendages was also observed in Rhipicephalus (Boophilus) microplus. The overall prevalence of anomalies in Rh. haemaphysaloides and Rh. (B.) microplus was 0.3% (3/971) and 0.4% (3/678), respectively.
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