Ovine Ixodid Ticks Infestation Prevalence in and Around Jimma Town, South West of Ethiopia
Teshita Sediso,
Kinfe Kibebew
Issue:
Volume 6, Issue 2, June 2023
Pages:
20-25
Received:
5 June 2023
Accepted:
20 June 2023
Published:
29 June 2023
Abstract: A cross-sectional study carried out from April 2021 to May 2022 in order to determine the prevalence of tick infestation and associated risk factors in Sheep in and around Jimma Town, South West of Ethiopia. Total of 384 Sheep of different age groups and body conditions were so selected, and 334 (86.98%) of them were harboring ticks. The high prevalence within age groups, sex and body condition score of animals showed statistically significant differences (P<0.05) while statistical relationship between tick infestation and animal origin, insignificant (p > 0.05). High tick infestation rate recorded in sheep with adult of (88.5%) and old of (83.1%) than with young of (36.8%) age group. Similarly, high tick infestation of 89% noted in sheep with poor body condition while 87% & 74.8% of tick infestation verified in sheep with medium and good body condition, in that order. Five tick species, grouped under four genera, Rhipicephalus evertsi, Hyalomma truncatum, Amblyomma varigatum, Rhipicephalus pulchellus & Rhipicephalus (Bophilus) decoloratus of tick species identified along with the multi species of tick with 25.5%, 22.7%, 12.2%, 10.7%, 9.6% and 6.2% of prevalence, respectively. As an inference that ticks were the most important production and health problems for sheep in the study area. The ever-increasing threat of ovine ticks, so, warrants the systematic use of acaricides and the awareness of pet owners to prevent and control ticks, appositely.
Abstract: A cross-sectional study carried out from April 2021 to May 2022 in order to determine the prevalence of tick infestation and associated risk factors in Sheep in and around Jimma Town, South West of Ethiopia. Total of 384 Sheep of different age groups and body conditions were so selected, and 334 (86.98%) of them were harboring ticks. The high preva...
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Research Article
Taxonomic Reinvestigation of Hynobius lichenatus: Description of a New Species and Resurrection of a Previously Described Species from Eastern Japan
Hirotaka Sugawara,
Ayumi Fujiwara,
Atsuki Azuma,
Ryuichi Sugawara,
Makoto Kuraishi,
Masahiro Nagano*
Issue:
Volume 6, Issue 2, June 2023
Pages:
26-45
Received:
5 October 2023
Accepted:
26 October 2023
Published:
11 November 2023
Abstract: A new species of the genus Hynobius from the central part of Tohoku District, Japan, is described. Hynobius lichenatus was divided into three groups based on morphological and molecular analyses, and the boundaries of these groups were delineated. The central part of the Tohoku group was described as Hynobius senzanensis sp. nov., whereas populations from the southern part of Tohoku, the northern part of Kanto, and the eastern part of Hokuriku were resurrected as Hynobius unanngso. Morphometric comparisons revealed that H. lichenatus possesses significantly shorter vomerine teeth length in both sexes compared with the other two species. Additionally, H. lichenatus exhibited a significantly longer tail length compared with H. unanngso. Although the new species and H. unanngso shared similar morphology, they differed significant in the width of their vomerine teeth, and did not form a sister group as closest relatives. Following this taxonomic reassessment, H. lichenatus is now limited to the Tohoku area (comprising Aomori, Iwate, Akita, and Miyagi Prefectures). The boundary between H. lichenatus and the new species is located in the southern part of Akita Prefecture, along the Japan sea side, and the eastern part of Miyagi Prefecture, along the Pacific Ocean side. This study provides insights into the distribution ranges of the three species and a re-evaluation of their habitat status is crucial for their conservation.
Abstract: A new species of the genus Hynobius from the central part of Tohoku District, Japan, is described. Hynobius lichenatus was divided into three groups based on morphological and molecular analyses, and the boundaries of these groups were delineated. The central part of the Tohoku group was described as Hynobius senzanensis sp. nov., whereas populatio...
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