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Hard ticks are blood-sucking ectoparasites infesting all types of domestic ruminants throughout the world and serve as vectors in the dissemination of a wide variety of pathogens. Sheep and goat farming is a vital economic source for resource-poor farming communities in the Khyber Pakhtunkhwa (KPK) province of Pakistan. Aim: The aim of present study is to study the epidemiological profile of ticks in various agro-climatic zones of KPK. Materials and Methods: A total of 1500 (882 sheep and 618 goats) of all age groups and sexes were examined for the presence of ticks belonging to six districts in four agro-climatic zones of KPK province, Pakistan. Non-probability sampling was undertaken based on animal hosts' selection, collection of hard ticks, and epidemiological parameters. Ticks collected from sheep and goats were identified phenotypically using standard keys. Results: The results revealed that Rhipicephalus microplus (36.2%) was the predominant tick species followed by Hyalomma anatolicum (25.2%), Hyalomma trancatum (18.1%), Hyalomma aegyptium (11.3%) , Hyalomma asiaticum (6.9%), and Haemephysalis bispinosa (2.4%). Different epidemiological parameters showed that weather, humidity, and host age negatively affect ( p &lt; 0.05) tick load while temperatures (Minimum and Maximum), sunshine (hrs), and precipitation positively affected ( p &lt; 0.05) tick load. Host sex only showed a positive association with tick load ( p &gt; 0.05). The highest value of tick diversity index (H) 0.36748 was noted for Hyalomma anatolicum as this tick species was commonly distributed in three agro-climatic zones except in the Suleiman Piedmont zone, while Haemaphysalis bispinosa has the lowest diversity index (0.0334) as it was only found in the Central Valley Plains zone of KPK. The Shannon diversity index of tick diversity was highest at Barikot while the lowest index value was at Kabal (2.407). Similarly, a higher Simpson's diversity index was at Barikot (0.9554) and the lowest hard index was noted at Takht bai (2.874). The dominance index showed that the tick species were more dominant at Takht bai (0.1251), while the lowest dominance was at Barikot (0.04465). Conclusions : It has been concluded that tick diversity and distribution, abundance, reproduction, development, and survival depend on prevailing climatic conditions. The present study would not only help to identify the tick species but also facilitate in devising effective control measures to minimize the transmission pathogens in sheep and goats being reared in the various agro-climatic zones of KPK province, Pakistan.

international journal of environmental  research and public health/international journal of environmental research and public health

Prevalence and Distribution of Hard Ticks and Their Associated Risk Factors in Sheep and Goats from Four Agro-Climatic Zones of Khyber Pakhtunkhwa (KPK), Pakistan