Order: Acarina (Tick)
Introduction
 Blood sucking arthopods
 Most important vectors of human and animal diseases
 Life ...
Order: Acarina (Ticks)
Zoological Classification/ Systematics of tick
Phylum: Arthopoda
Sub phylum: Chelicerata (Chelicera...
Terminology/Anatomy of Ticks
Mammillae 3
Scutum, Festoon, Ornate, Porose, Prostraite, Metastraite,
Brevirostrate, Longistr...
Basic Anatomy of Tick (hard tick)
Alimentary system
Salivary
gland
Respiratory system
Nervous system
Sensory structure
Rep...
Mouth part of tick and Feeding Mechanism
5Tick: A presentation by MAAlim, CVASU
Soft tickHard tick
6
Difference?????
Tick: A presentation by MAAlim, CVASU
Morphological Identification
Ixodes
7
Longistrate
Tick: A presentation by MAAlim, CVASU
Boophilus
Brevirostrate
8Tick: A presentation by MAAlim, CVASU
Haemaphysalis
9Tick: A presentation by MAAlim, CVASU
Rhipicephalus
10
Reddish or blackish brown
Tick: A presentation by MAAlim, CVASU
Hyalomma
11
Longistrate
Medium sized tick
Tick: A presentation by MAAlim, CVASU
Amblyomma
12
large sized tick
Second palpal segment is about twice as long as third
Mouth part Much longer than basis ca...
Dermacentor
13Tick: A presentation by MAAlim, CVASU
Life cycle of One Host tick
Each stage feeds and developed on One Host
14
Complete Metamophosis
Oviposition
Tick: A presen...
Life cycle of two Host tick
Larva and Nymph feed on one host and adult ticks on a second host
15Tick: A presentation by MA...
Life cycle of three Host tick
Each stage feeds and developed on different Host
16Tick: A presentation by MAAlim, CVASU
17
Life cycle of soft tick (Multi host L/C)
 Several oviposition
 7 nymphal stages
Tick: A presentation by MAAlim, CVASU
1. Trans-stadial : (stage to stage/One life stage to Next)
2. Trans-ovarian (Parent to progeny/ one generation to Next)
Ve...
19
Water balance by unfed tick
In adverse condition, Life cycle of Tick fall in tow dilemmas :
How to maintain their ener...
20
Pathological significance of Tick infestation/ OR Harm produced by
• General Effect
• Tick Paralysis
• Tick Toxicosis
•...
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Arthropods (ticks) by Md. Abdul Alim, CVASU, Bangladesh

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Arthropods (ticks) by Md. Abdul Alim, CVASU, Bangladesh

  1. 1. Order: Acarina (Tick) Introduction  Blood sucking arthopods  Most important vectors of human and animal diseases  Life threatening vector (rank second; 1st Mosquitos) Transmit greater variety of infections agents Pest of man, animal and wildlife  Server toxic condition (Tick Parasysis, Tick Toxicosis) Economic losses Tick-borne diseases major threat to livestock industry  Costs billions of dollars annually to protect livestock from ticks and tick-borne diseases 1Tick: A presentation by MAAlim, CVASU
  2. 2. Order: Acarina (Ticks) Zoological Classification/ Systematics of tick Phylum: Arthopoda Sub phylum: Chelicerata (Chelicerae digit, shaft, base) Class: Arachnida (pedipalp, 4 pairs of legs) Sub-class: Acari (Fusion of body segment) Order: Acarina (Stigmatal pores) Sub-order: Ixodoidae (Metastigmata; spiracle, hypostome, sensory organs) Family: Ixodidae (Hard ticks) Argasidae (Soft ticks) Genus: Species: Boophilus microplus Argus percicus Argus spp Otobius spp Ornithodorus spp Ixodes spp Boophilus spp Rhipicephalus spp Haemaphysalis spp Dermacentor spp Hyalomma spp Amblyomma spp 2Tick: A presentation by MAAlim, CVASU
  3. 3. Terminology/Anatomy of Ticks Mammillae 3 Scutum, Festoon, Ornate, Porose, Prostraite, Metastraite, Brevirostrate, Longistrate, Basis capituli, Haller’ s organ, Mammillae, Pulvillus, Punctations, Alloscutum, plates, orfice/apperture Tick: A presentation by MAAlim, CVASU
  4. 4. Basic Anatomy of Tick (hard tick) Alimentary system Salivary gland Respiratory system Nervous system Sensory structure Reproductive system Male Female 4Tick: A presentation by MAAlim, CVASU
  5. 5. Mouth part of tick and Feeding Mechanism 5Tick: A presentation by MAAlim, CVASU
  6. 6. Soft tickHard tick 6 Difference????? Tick: A presentation by MAAlim, CVASU
  7. 7. Morphological Identification Ixodes 7 Longistrate Tick: A presentation by MAAlim, CVASU
  8. 8. Boophilus Brevirostrate 8Tick: A presentation by MAAlim, CVASU
  9. 9. Haemaphysalis 9Tick: A presentation by MAAlim, CVASU
  10. 10. Rhipicephalus 10 Reddish or blackish brown Tick: A presentation by MAAlim, CVASU
  11. 11. Hyalomma 11 Longistrate Medium sized tick Tick: A presentation by MAAlim, CVASU
  12. 12. Amblyomma 12 large sized tick Second palpal segment is about twice as long as third Mouth part Much longer than basis capituliTick: A presentation by MAAlim, CVASU
  13. 13. Dermacentor 13Tick: A presentation by MAAlim, CVASU
  14. 14. Life cycle of One Host tick Each stage feeds and developed on One Host 14 Complete Metamophosis Oviposition Tick: A presentation by MAAlim, CVASU
  15. 15. Life cycle of two Host tick Larva and Nymph feed on one host and adult ticks on a second host 15Tick: A presentation by MAAlim, CVASU
  16. 16. Life cycle of three Host tick Each stage feeds and developed on different Host 16Tick: A presentation by MAAlim, CVASU
  17. 17. 17 Life cycle of soft tick (Multi host L/C)  Several oviposition  7 nymphal stages Tick: A presentation by MAAlim, CVASU
  18. 18. 1. Trans-stadial : (stage to stage/One life stage to Next) 2. Trans-ovarian (Parent to progeny/ one generation to Next) Vector Competency: Strategies for Questing (seek) the host 1. Hunter 2. Ambush (Waiter) 18 Diapauses 1. Morphogenetic diapasue 2. Behavioural diapause (most common) Related terminology: Hibernation Aestivation Hypobiosis Quiescence (larval stages in Arthopods) Related terminology: Hibernation Aestivation Hypobiosis Quiescence (larval stages in Arthopods) Behavior and Ecology Tick: A presentation by MAAlim, CVASU
  19. 19. 19 Water balance by unfed tick In adverse condition, Life cycle of Tick fall in tow dilemmas : How to maintain their energy How maintain water balance Have to counteract Overhydration (during feeding) (reinjection water into salivary secretion by Fcell of Type III Acini) Have to counteract with dehydration (during fasting) Prevention of dehydration: Physical barriers Physiological adaption Behavioural Mechanisms Can call some restore mechanisms for rehydration:  Passive water vapour absorption though cuticle Catabolic and Anabolic water production Active absorption of water (Type I salivary acini) Tick: A presentation by MAAlim, CVASU
  20. 20. 20 Pathological significance of Tick infestation/ OR Harm produced by • General Effect • Tick Paralysis • Tick Toxicosis • Vector importance: Tick-borne diseases Available Cattle tick in Bangladesh Control of ticks Tick: A presentation by MAAlim, CVASU
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