Parasitic infections in Cattle (a. Cattle ticks)
Sep 30, 2018 • 10:53 PM UTC
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Meignanalakshmi Sundaram
I am Dr.S.Meignanalakshmi, working as Professor, at the Directorate of Centre for Animal Health Studies, TANUVAS, Chennai-51. Working on Foldscope project on "Foldscope for diagnosis of Rumen Acidosis and parasitic infections in cattle" sanctioned by DBT
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Endoparasites live inside the host. The may either be microparasites such as: blood protozoans (Theileria, Babesia, Trypanosomes) or macroparasites like: Helminths (Trematodes, Cestodes, Nematodes)
Ectoparasites include ticks, mites, leeches, flies etc . They live on the outer surface of the host. The most common ectoparasites are ticks which causes cattle tick fever, Theileriosis ,Babesiosis etc.
Ticks were collected from a cow suspected of Theileriosis showing the following symptoms: fever, tick infestation, rough coat, restlessness, decreased milk production etc. and stored in 10% Formalin and basic fixation techniques were carried out. Based on the Anatomy, the tick was identified as Boophilus microplus in the Nymph stage (8 legs). Various parts were identified under a foldscope.
Head
Ectoparasites include ticks, mites, leeches, flies etc . They live on the outer surface of the host. The most common ectoparasites are ticks which causes cattle tick fever, Theileriosis ,Babesiosis etc.
Ticks were collected from a cow suspected of Theileriosis showing the following symptoms: fever, tick infestation, rough coat, restlessness, decreased milk production etc. and stored in 10% Formalin and basic fixation techniques were carried out. Based on the Anatomy, the tick was identified as Boophilus microplus in the Nymph stage (8 legs). Various parts were identified under a foldscope.
Head
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2. Spiracle
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3. Anus and anal groove.
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5. Festoons
They are small areas separated by short grooves on the back margin of the tick. This helps to distinguish all other ticks from Ixodes ticks, which lack festoons.
They are small areas separated by short grooves on the back margin of the tick. This helps to distinguish all other ticks from Ixodes ticks, which lack festoons.
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6. Genital opening and groove
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7. 4 legs indicating that larvae is in nymph stage
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