Haemonchus

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Haemonchus

(hē-mong'kŭs),
An economically important genus of nematode parasites (family Trichostrongylidae) occurring in the abomasum of ruminants and causing severe anemia, especially in younger or previously unexposed animals. Some significant species are Haemonchus placei (in cattle, sheep, and goats), Haemonchus similis (in cattle and sheep), and Haemonchus contortus, the stomach, barberpole, or twisted wire worm of cattle, sheep, goats, and other ruminants, of which a few cases have been reported from humans; accidental parasite of humans.
[G. haima, blood, + onchos, spear]

Hae·mon·chus

(hē-mong'kŭs)
An economically important genus of nematodes (family Nematostrongylidae); parasitizes the abomasum of cattle, sheep, goats, and other ruminants, causing anemia; human infection occasionally occurs.
[G. haima, blood, + onchos, spear]
References in periodicals archive ?
Evaluation of anthelmintic properties of some plants used as livestock dewormers against Haemonchus contortus infection in sheep.
(21) showed that methanolic extract of Ziziphus mucronata barks has a significantly (p<0.05) higher activity with an inhibition concentration 50 ([IC.sub.50]) value of 3.9 mg/mL than AE with an [IC.sub.50] value of 14.7 mg/mL when tested against Haemonchus contortus egg.
For the anthelmintic activity of the plant Haemonchus contortus parasite was used which is obtained from the abomasum of slaughtered goat.
En Argentina, aislamientos de Haemonchus contortus con resistencia multiple a dos, tres y cuatro drogas con diferente modo de accion, han sido informados en ovinos de Corrientes y Entre Rios (16), asi como en provincias del area central como Buenos Aires y Santa Fe (5, 18).
Prevalence of Haemonchus contortus in naturally infected small ruminants grazing in the Photohar area of Pakistan.
[11] GAL-14 was reported to play a role in the immune response against gastrointestinal parasites serving as marker for worm burden, which was shown in sheep infected with Haemonchus contortus. [12]
En particular, en al menos cinco granjas de pequenos rumiantes de Antioquia, estudios recientes in vivo e in vitro han demostrado que la mayoria de antihelminticos comerciales han perdido toda su eficacia frente a Haemonchus contortus (5).
However, successful goat production requires proper control of gastrointestinal nematodes (GIN) and coccidian species, such as Haemonchus contortus (H.