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Haemonchus is a genus which includes the species; Haemonchus placei, also known as H. contortus, H. similis, and H. longistipes.
 
Haemonchus is a genus which includes the species; Haemonchus placei, also known as H. contortus, H. similis, and H. longistipes.
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Haemonchus contortus is by far currently the most prevalent species under the Haemonchus genus, and seen commonly within the UK. The other two are of importance withint the UK, but to a lesser extent.
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Haemonchus contortus is by far currently the most prevalent species under the Haemonchus genus, and seen commonly within the UK. The other two are of importance within the UK, but to a lesser extent.
    
'''Scientific Classification'''
 
'''Scientific Classification'''
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Eggs are subsequently shed onto pasture by the host within 3 weeks of infection, and the life cycle continues.
 
Eggs are subsequently shed onto pasture by the host within 3 weeks of infection, and the life cycle continues.
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===Identification===
 
The eggs is yellow, and approximately 70–85 μm long by 44 μm wide. The adult female is 18–30 mm and is easily recognized by its distinct “barber pole” coloration. The female has a red and while appearance, the red is due to the fact it is a blood feeder, and the while represents the ovaries colied around the blood filled intestines.   
 
The eggs is yellow, and approximately 70–85 μm long by 44 μm wide. The adult female is 18–30 mm and is easily recognized by its distinct “barber pole” coloration. The female has a red and while appearance, the red is due to the fact it is a blood feeder, and the while represents the ovaries colied around the blood filled intestines.   
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[[Category:Trichostrongyloidea]]
 
[[Category:Trichostrongyloidea]]
 
[[Category:To_Do_-_Max]]
 
[[Category:To_Do_-_Max]]
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==Haemonchus similis==
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{| cellpadding="10" cellspacing="0" border="1"
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| Predilection site
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|'''Abomasum
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|-
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|}
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===Identification===
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The adults are red in colour and around 2-3 cm in length.
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The male has a dorsal lobe, which are longer than those seen in '''H. contortus''' and barbed spicules, which are shorter.
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===Hosts===
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Cattle, deer.
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