Podcast
Questions and Answers
Which louse is most abundant and clinically important in cattle populations?
Which louse is most abundant and clinically important in cattle populations?
- Haematopinus asini
- Bovicola ocellatus
- Bovicola (Damalinia) bovis (correct)
- Bovicola equi
What is a common clinical sign associated with heavy lice infestations in equines?
What is a common clinical sign associated with heavy lice infestations in equines?
- Weight gain
- Sores from rubbing (correct)
- Increased appetite
- Excessive grooming behavior
Which louse is described as occurring in both donkeys and horses?
Which louse is described as occurring in both donkeys and horses?
- Bovicola equi
- Haematopinus asini (correct)
- Bovicola ocellatus
- Bovicola (Damalinia) bovis
What is often associated with infestations caused by Haematopinus asini in horses?
What is often associated with infestations caused by Haematopinus asini in horses?
In what season are heavy lice infestations most commonly observed in equines?
In what season are heavy lice infestations most commonly observed in equines?
What is a characteristic of adults in the specified lice species?
What is a characteristic of adults in the specified lice species?
Which segment count is associated with the antennae of amblyceran lice?
Which segment count is associated with the antennae of amblyceran lice?
What factor is NOT mentioned as contributing to fluctuations in lice populations?
What factor is NOT mentioned as contributing to fluctuations in lice populations?
Which characteristic differentiates the first pair of legs in lice of the Linognathidae family?
Which characteristic differentiates the first pair of legs in lice of the Linognathidae family?
Which method of spread is NOT a means to infest lice?
Which method of spread is NOT a means to infest lice?
What is a common characteristic of chewing lice of birds regarding their legs?
What is a common characteristic of chewing lice of birds regarding their legs?
What is the survival time away from hosts for chewing and blood-sucking lice?
What is the survival time away from hosts for chewing and blood-sucking lice?
Which host characteristic is likely to harbor more lice?
Which host characteristic is likely to harbor more lice?
Which species is known as the hog louse?
Which species is known as the hog louse?
Which of the following lice species is known to cause anemia?
Which of the following lice species is known to cause anemia?
What type of lice is found primarily on the neck and shoulders of animals?
What type of lice is found primarily on the neck and shoulders of animals?
Which species is the most important body louse in poultry?
Which species is the most important body louse in poultry?
Where are larger numbers of lice typically found on an animal?
Where are larger numbers of lice typically found on an animal?
Which louse species affects ducks?
Which louse species affects ducks?
Which of the following statements about louse infestations is true?
Which of the following statements about louse infestations is true?
Which is NOT a species of louse mentioned in the content?
Which is NOT a species of louse mentioned in the content?
What is the primary habitat preference of Tsetse flies from the morsitans group?
What is the primary habitat preference of Tsetse flies from the morsitans group?
Which of the following statements about Tsetse flies is NOT true?
Which of the following statements about Tsetse flies is NOT true?
What is the average temperature range for Tsetse fly habitats?
What is the average temperature range for Tsetse fly habitats?
What does the genus name 'Glossina' translate to in English?
What does the genus name 'Glossina' translate to in English?
Which method is NOT commonly used for controlling Tsetse fly populations?
Which method is NOT commonly used for controlling Tsetse fly populations?
How long can the maximum lifespan of a female Tsetse fly be?
How long can the maximum lifespan of a female Tsetse fly be?
What is the main reason the control of nematodes is considered difficult?
What is the main reason the control of nematodes is considered difficult?
Which Tsetse fly group is associated primarily with forested habitats?
Which Tsetse fly group is associated primarily with forested habitats?
Which of the following insect growth regulators (IGRs) is NOT mentioned in the content?
Which of the following insect growth regulators (IGRs) is NOT mentioned in the content?
What is the primary method suggested for controlling flea larvae indoors?
What is the primary method suggested for controlling flea larvae indoors?
Which of the following is a biological control method mentioned for flea management?
Which of the following is a biological control method mentioned for flea management?
How long is the biological control method effective against flea larvae and cocoons when applied?
How long is the biological control method effective against flea larvae and cocoons when applied?
In which areas should flea treatments be sprayed for maximum effect?
In which areas should flea treatments be sprayed for maximum effect?
What common misconception is associated with flea adulticide treatment indoors?
What common misconception is associated with flea adulticide treatment indoors?
What is the primary focus of Integrated Flea Management strategies?
What is the primary focus of Integrated Flea Management strategies?
Which of the following true bugs is known to feed on human blood?
Which of the following true bugs is known to feed on human blood?
During which months is the activity period of adults in Europe observed?
During which months is the activity period of adults in Europe observed?
What is the typical number of eggs a female can lay in humid soil?
What is the typical number of eggs a female can lay in humid soil?
What is the pupal period of these flies?
What is the pupal period of these flies?
What kind of stimuli do Tabanids use to detect their hosts?
What kind of stimuli do Tabanids use to detect their hosts?
What is the significance of positive polarotaxis in Tabanids?
What is the significance of positive polarotaxis in Tabanids?
Which of the following is NOT considered a biological vector associated with Tsetse flies?
Which of the following is NOT considered a biological vector associated with Tsetse flies?
What is the average duration for a complete life cycle from egg to adult?
What is the average duration for a complete life cycle from egg to adult?
What are Tabanids primarily attracted to in potential hosts?
What are Tabanids primarily attracted to in potential hosts?
Flashcards
Lice
Lice
Wingless insects with flattened bodies, typically 2-6 mm long.
Sexual Dimorphism in Lice
Sexual Dimorphism in Lice
The difference in appearance between male and female lice is usually subtle, with males being slightly smaller.
Antennae in Lice
Antennae in Lice
Four segments in amblyceran lice, 3-5 segments in ischnoceran (blood-sucking) lice.
Maxillary Palps
Maxillary Palps
Signup and view all the flashcards
Legs of Lice
Legs of Lice
Signup and view all the flashcards
First Pair of Legs in Linognathidae Lice
First Pair of Legs in Linognathidae Lice
Signup and view all the flashcards
Host Specificity of Lice
Host Specificity of Lice
Signup and view all the flashcards
Factors Influencing Lice Populations
Factors Influencing Lice Populations
Signup and view all the flashcards
Chewing Lice (Bovicola equi)
Chewing Lice (Bovicola equi)
Signup and view all the flashcards
Chewing Lice (Bovicola bovis)
Chewing Lice (Bovicola bovis)
Signup and view all the flashcards
Blood-sucking Louse (Haematopinus asini)
Blood-sucking Louse (Haematopinus asini)
Signup and view all the flashcards
Light Spot, Fleck
Light Spot, Fleck
Signup and view all the flashcards
The Feathers
The Feathers
Signup and view all the flashcards
What are IGRs?
What are IGRs?
Signup and view all the flashcards
How does vacuuming help control fleas?
How does vacuuming help control fleas?
Signup and view all the flashcards
Why is bedding washing crucial for flea control?
Why is bedding washing crucial for flea control?
Signup and view all the flashcards
How does combing help with flea control?
How does combing help with flea control?
Signup and view all the flashcards
What is the purpose of light traps in flea control?
What is the purpose of light traps in flea control?
Signup and view all the flashcards
How do nematodes help control fleas?
How do nematodes help control fleas?
Signup and view all the flashcards
What is integrated flea management?
What is integrated flea management?
Signup and view all the flashcards
What are true bugs?
What are true bugs?
Signup and view all the flashcards
Blood-sucking Lice in Cats
Blood-sucking Lice in Cats
Signup and view all the flashcards
Blood-sucking Lice in Pigs
Blood-sucking Lice in Pigs
Signup and view all the flashcards
Chewing Lice in Cats
Chewing Lice in Cats
Signup and view all the flashcards
Blood-sucking Lice in Cats
Blood-sucking Lice in Cats
Signup and view all the flashcards
Most Important Poultry Louse
Most Important Poultry Louse
Signup and view all the flashcards
Lice Types in Poultry
Lice Types in Poultry
Signup and view all the flashcards
Lousiness in Dogs and Cats
Lousiness in Dogs and Cats
Signup and view all the flashcards
Lice Prevalence and Conditions
Lice Prevalence and Conditions
Signup and view all the flashcards
How do tabanids find their hosts?
How do tabanids find their hosts?
Signup and view all the flashcards
What are the main stimuli that attract Tabanids?
What are the main stimuli that attract Tabanids?
Signup and view all the flashcards
How are Tabanids a nuisance?
How are Tabanids a nuisance?
Signup and view all the flashcards
What are the diseases that Tabanids can spread?
What are the diseases that Tabanids can spread?
Signup and view all the flashcards
What is the main vector of trypanosomiasis?
What is the main vector of trypanosomiasis?
Signup and view all the flashcards
What type of life cycle do Tabanids have?
What type of life cycle do Tabanids have?
Signup and view all the flashcards
What are the typical activity patterns of Tabanids?
What are the typical activity patterns of Tabanids?
Signup and view all the flashcards
How many species of Tabanids exist?
How many species of Tabanids exist?
Signup and view all the flashcards
What are Tsetse flies?
What are Tsetse flies?
Signup and view all the flashcards
Where do Tsetse flies live?
Where do Tsetse flies live?
Signup and view all the flashcards
Explain the Tsetse fly's life cycle.
Explain the Tsetse fly's life cycle.
Signup and view all the flashcards
What is the Tsetse fly's feeding behavior?
What is the Tsetse fly's feeding behavior?
Signup and view all the flashcards
Why are Tsetse flies significant?
Why are Tsetse flies significant?
Signup and view all the flashcards
How is Tsetse fly reproduction different?
How is Tsetse fly reproduction different?
Signup and view all the flashcards
Describe the classification of Tsetse flies.
Describe the classification of Tsetse flies.
Signup and view all the flashcards
How can Tsetse fly populations be controlled?
How can Tsetse fly populations be controlled?
Signup and view all the flashcards
Study Notes
Veterinary Entomology
- Deals with arthropod pests and disease vectors affecting livestock, poultry, pets, and wildlife.
- Two key categories of ectoparasites:
- Facultative: can survive without a host (e.g., flies).
- Obligatory: require a specific host species to survive (e.g., blood-feeding lice).
- Arthropods are classified by their parasitism:
- Permanent/stationary ectoparasites
- Temporary ectoparasites
- Adults only
- Larvae only
- Subadults and adults
- Common veterinary pests include sucking and biting lice, fleas, biting flies, non-biting muscoid flies, myiasis-causing flies, mites, and ticks.
Reproduction of Arthropods
- Sexual dimorphism may occur.
- Females are often oviparous (lay eggs), ovoviviparous (eggs hatch inside the female), or larviparous (give birth to larva).
- Life cycles vary, with some displaying hemimetabolic (incomplete metamorphosis) development and others holometablic (complete metamorphosis) development, including a pupal stage.
Impact of Ectoparasites
- Direct effects: blood loss, hide/wool/tissue damage, nuisance, paralysis, allergies, and immunosuppression
- Indirect effects: reduced animal production, nuisance to workers and neighbors, costs of control, and transmission of zoonotic diseases.
Lice Infestations (Pediculosis)
- Chewing/Biting Lice (Mallophaga) feed on skin scales, lipids, and bacteria. They include species like Felicola subrostratus only in feline or cat species, which is sometimes associated with the infestations in birds.
- Blood-Sucking Lice(Anoplura) rely on blood for sustenance. Some species of concern in veterinary settings.
Fleas
- Ectoparasites of mammals, birds, and even humans.
- Historically, crucial to numerous infectious diseases (e.g., plague).
- Numerous species, 90% parasitizing mammals.
- Many are nidicolous (nest dwelling).
- Important genera include Ctenocephalides (dog and cat fleas), and Pulex (human flea).
- Fleas are characterized by their jumping ability and highly flattened bodies.
- Feature combs called ctenidia on the head and thorax.
- Major source of ectoparasite problems mostly in dogs and cats and also to humans. They may be found around the pets.
- Adults feed on blood, short life time, 15-30 days.
- Mostly living around the hosts.
- Life cycles of holometobolic types including eggs, larvae, pupae and adults.
- Larvae feed on organic matter.
True Bugs (Hemiptera)
- Primarily phytophagous (plant feeders) but also includes some predatory species.
- Major groups include Cimex (bed bugs; Cimex lectularius is a major urban pest), and Triatoma (kissing or assassin bugs).
- Bed bugs are blood suckers, they feed on hosts at night.
- Kissing bugs are blood suckers, with some species being vectors for Trypanosoma cruzi, the causative agent of Chagas disease. Their biting style is sometimes characterized as kissing the skin.
Coleoptera
- The beetle order.
- Includes the lesser mealworm (Alphitobius diaperinus) but is not a parasite.
- This beetle is a stored-product pest.
Diptera (Flies)
- Includes mosquitoes (Culex, Aedes, Anopheles), black flies (Simulium ), biting midges (Culicoides), and other Diptera species of importance in veterinary science.
- Many mosquito larvae are found in water.
- Females of most species require a blood meal before they can lay eggs.
- Many species are crepuscular or nocturnal, and feed primarily in or near or around water sources.
- Some species are vectors of important diseases like Malaria (Plasmodium species).
- Many species are attracted to animals, especially those with wet or wounds.
- Black flies are diurnal (active during the day).
- Biting midges are also diurnal and feed near their breeding place.
- Some are vectors for significant diseases as well as for nuisance.
- Some species may cause myasis as well as transmit viruses or bacteria.
Other Important Pests
- Ticks (Ixodidae): Hard ticks (e.g., Ixodes ricinus, Dermacentor spp.) and soft ticks (e.g., Argas spp.). Ticks are vectors of many diseases, including Lyme disease. They are generally found in moist environments in wooded areas, but not only.
- Mites (Prostigmata/Mesostigmata): Chiggers (e.g., Trombicula spp.), mange mites (e.g., Sarcoptes spp.), poultry red mites (e.g., Dermanyssus gallinae), and other mites.
Botflies (Oestridae)
- Some Oestrus species are external parasites in veterinary practice.
- The Hypoderma species lay eggs on the host.
- The larval stages develop internally, causing myiasis.
- These are external parasites.
- The external infestations are caused by oviposition of the flies.
- The botflies are mainly characterized by the fact that their larval stages cause myiasis.
Control Methods
- Chemical control: using insecticides (e.g., ivermectin, fipronil, permethrin).
- Non-chemical control: physical removal of pests (e.g., combing, vacuuming), reducing breeding areas (proper waste disposal), introducing natural predators.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.