Haemonchosis

Haemonchosis

 

a helminthic disease of ruminants caused by nematodes of the genus Haemonchus. It is found throughout the world. Haemonchus worms are small parasites (18-35 mm in length). The larvae develop in the external environment. Young animals are most susceptible to haemonchosis. In the southern regions haemonchosis in sheep sometimes occurs in enzootic form (most often in years with abundant precipitation). Invasion by Haemonchus causes serious disorders of the entire organism, which manifest themselves by the affliction of the intestines, nervous system, blood-producing organs, and endocrine glands. In young animals this frequently causes death. Treatment consists of phenothiazine, which is fed to the animals mixed with crushed grain. This same preparation is used for preventive purposes. Rotating pastures, biothermal disinfection of manure, and high quality feed for the animal also play a substantial role in the prevention of haemonchosis.

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Among the different gastrointestinal parasitic diseases, haemonchosis, caused by the nematode species Haemonchus contortus is considered the most serious parasitic disease of goats and is associated with potentially substantial death losses, harmful effect on performance on the flock and then the reduction of income.
The "FAMACHA" Ovine anaemia guide to assist with the control of haemonchosis. In: Proceedings of the 7th Annual Congress of the Livestock Health and Production Group of the South African Veterinary Association.
Haemonchosis in a Brahman calf in the high tropics of the Antioquian Northeast
Haemonchosis is characterized by anemia, extreme weakness, loss of condition, and eventually death [3].
Afera Tadele, "Prevalence of ovine Haemonchosis in Wukro, ethiopia," Journal of Parasitology Research, vol.
Ovine Anaemia Guide to assist with the control of haemonchosis. In Proceedings of the 7th Annual Congress of Livestock Health and Production Group of South African Veterinary Association, Port Elizabeth, 1996; p.
Haemonchosis is caused by Haemonchus contortus, is pathogenic and dominant nematode parasite.
In this regard, FAMACHA[c] system was developed in South Africa and uses the estimation of anaemia, based on clinical evaluation of the colour of the lower eyelid mucous membrane, as a morbidity marker for haemonchosis [15] and therefore, indicates the urgency of antihelmintic treatments.
C.S, Hayat and M, Akhtar., "Biochemical disturbances associated with haemonchosis in sheep", Agri.
Anaemia is the cardinal clinical sign of Haemonchosis due to blood loss as 0.5 mL blood drawn/day/worm.