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52 Cards in this Set

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1. Biting – Mallophaga
2. Sucking – Anoplura
Two types of lice
lice of large animals
Pediculosis
type of biting louse (Mallophaga) affects cattle
Pediculosis
Cattle Biting Louse
Damalinia (Bovicola) bovis
1.Short Nose Cattle Louse – Haematopinus eurysternus
2.Long Nose Cattle Louse – Linognathus vituli
3.Little Blue Cattle Louse – Solenopotes capillatus
3 species of sucking lice (Anoplura)
Short Nose Cattle Louse
Haematopinus eurysternus
Long Nose Cattle Louse
Linognathus vituli
Little Blue Cattle Louse
Solenopotes capillatus
Cattle lice
Short nose cattle louse and long nose cattle louse
.
Cattle lice
Little blue cattle lice
.
Cattle lice
Cattle biting lice and nits (damalinia bovis)
.
1. The Horse Biting Louse – Damalinia (bovicola) equi
2. The Horse Sucking Louse – Haematopinus asine
Horses
Harbor 2 species of lice
Damalinia (bovicola) equi
The Horse Biting Louse
Haematopinus asine
The Horse Sucking Louse
The Hog Louse
Pediculosis in pigs
The Hog Louse
Haematopinus suis
This is a very large louse 5-6mm
The Hog Louse
sheep species of biting louse
Mallophaga
Sheep Biting Louse
Damalinia (Bovicola) ovis
3 species of sucking lice (Anoplura)
1. The Sheep Foot Louse – Linognathus pedalis
2. The Body Louse – L. ovillus
3. African Sheep Louse – L. africanus
The Sheep Foot Louse
Linognathus pedalis
The Body Louse
L. ovillus
African Sheep Louse
L. africanus
Horse lice
Biting lice and nits (Damalinia equi)
.
Horse lice
Sucking lice (Haematopinus asine)
.
Pig lice
Sucking lice (Haematopinus suis)
.
Sheep
Biting lice (Damalinia ovis)
.
Sheep
Sucking lice Sheep foot louse (Linognathus Pedalis), Body louse (L. ovillus), and (L. africanus)
.
Harbor many species of lice the most common being
1. The Goat Biting Louse – Dramalinia (Bovicola) caprae
2. The Goat Sucking Louse – Linognathus stenopsis
Prediculosis
Goats
The Goat Biting Louse
Dramalinia (Bovicola) caprae
The Goat Sucking Louse
Linognathus stenopsis
Two other mallophaga lice that are frequently found
in goats
1. D. limbarta
2. D. crassipes
manifest by pruitus and dermal irritation which results in scratching, rubbing, and biting at infested areas.Rough coat, and lowered production in farm animals are common.
Extreme infestation with sucking lice can cause anemia.
Goat Prediculosis
Goat Sucking and biting lice of goats
.
Diagnosis is based upon presence of lice.
Prediculosis
The hair on large animals should be parted on the face, neck, ears, topline, dewlaps, tail base, to look for lice.
Prediculosis
The head, legs, feet, and scrotum should not be over looked especially in sheep.
Prediculosis
most prevalent during the winter in livestock
Prediculosis
requires application of effective insecticides (dips and sprays)
Louse control
Backrubber devices
dust bags
is effective against sucking lice
Injectable ivermectin
1. egg
2. larva
3. nymph
4. adult
Mange in Cattle (barn itch)
Developmental Stages:
They are host specific
Identification by recovery of mite in skin scraping
Mange
Scabies
Sarcoptes scabiei var bovis
Lesions firs appear on the head and neck then spread to other parts
Skin irritation and eruptions are characterized by a squamous, crusted appearance the skin thickens and forms large folds.
Mange
Is a notifiable and quarantinable disease when suspected it must be reported immediately.
Common scabies or psoroptic mange of cattle (Psoroptes ovis)
In the USA owners should not attempt to treat cattle infested with psoroptic mange this must be done by government officials.
Common scabies or psoroptic mange of cattle (Psoroptes ovis)
Seen in range and feedlot cattle.
Common scabies or psoroptic mange of cattle (Psoroptes ovis)
It appears first on the withers and soon spreads, along the neck and back, and over the shoulders, brisket to the belly and flanks.
Common scabies or psoroptic mange of cattle (Psoroptes ovis)
Infested cattle should be dipped not sprayed may need repeat dipping at intervals of 7-14 days
Common scabies or psoroptic mange of cattle (Psoroptes ovis)
Ivermectin S.Q. at 200 micrograms/kg body wt. is approved for control of psorotic and sarcoptic mange (not in lactating dairy cattle)
Common scabies or psoroptic mange of cattle (Psoroptes ovis)
Is the most common type of mange in cattle in the USA
Chorioptic mange (chorioptes bovis)