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Clinico-therapeutic management of haemonchosis in ovines.


Gastro-intestinal nematode parasitism is one of the most important disease constraints to small ruminant production in sub-tropics and tropics, where environment provide near-perfect conditions for development and survival of these parasites. Parasitic gastroenteritis dominated by haemonchosis is one of the major constraints to profitable ruminant production in India. The present study reports severe anaemia in sheep infested with haemonchus.

History and Observations

A sheep flock owner brought sheep for post mortem examination at DI Lab, LUVAS, Ambala. He reported that in a flock of 60 sheep, 20 had died. Owner reported history of anorexia, diarrhea, hair fall around nose and swelling under jaw in some animals. Post mortem examination revealed extremely high proportion of adult worms in abomasum and haemorrhagic lesion on gastric mucosa and dead foetus in uterus.

On clinical examination, animals were found weak, lethargic, pale mucus membrane, dullness, rough body coat, depression and emaciation. Blood in vials containing anticoagulant and faecal samples were collected from ten sheep from the flock. Haematological examination revealed low haemoglobin, TEC and higher eosinophil percent (Sharma et al., 2000). Faecal sample examination indicated heavy infestation of Haemonchus spp. On basis of history, clinical examination and laboratory findings, the infestation was diagnosed as severe anaemia due to haeamonchus parasite.

Treatment and Discussion

The animals were treated with Neomec oral (a) (Ivermectin 0.08% w/v), Fentas plus (a) (Fenbendazole 1.5% + Praziquantel 0.5%) on first day and Ferritas bolus (a) (Ferrous fumarate 1500 mg + Vitamin B12 75mcg + Folic acid 7500 mcg) for 5 days. The flock showed improvement in clinical signs after five days and recovered completely after 12 days. On 13th day again, blood and faecal samples from the same ten sheep were collected and examined.

In present study, animals were found weak, lethargic, pale mucus membrane, dullness, rough body coat, depression and emaciation Haematological profile revealed that sheep suffering from haemonchosis had low haemoglobin and TEC indicating severe anaemia due to loss of blood caused by blood sucking activity of Heamonchus parasite (Kadam et al., 2007) and haemorrhage caused due to their penetration into mucosa and sub mucosa (Patil et al., 1993, Maiti et al., 1999, Gondchar, 2002). Heavy infection of heamonchus causes severe anaemia and is principle feature of heamonchus infection.

After subsequent treatment with haematinic preparation and broad spectrum anthelmintic, the animals recovered completely.


Severe anaemia due to heamonchus parasite in sheep flock was diagnosed on the basis of clinical examination and laboratory investigations. The animals were treated with broad spectrum anthelmintic and haematinic preparations with complete recovery.


Gondchar, D. A. (2002). Studies on anaemia of helminth origin in goats of Akola Town. Post Graduate Thesis, MAFSU, Nagpur.

Kadam Yogita, Waghmare, S.P., Mode, S.G.,Kolte, A.Y., Pundekar, R.D. and Sukare, P.G. (2007). Study of anaemia in haemonchus infested sheep. Vet. World. 6 : 71-72.

Maiti, S.K., Rao, V.N. and Ali, S.L. (1999). Clinicohaematological and therapeutic studies in parasitic gastroenteritis in sheep. Indian Vet. J. 76: 435-37.

Patil, H.N., Bijwal, D.L., Sadekar, R.D., Mode, S.G. and Phadnaik, B.S. (1993). Efficacy of different anthelmintic against parasitic gastroenteritis in sheep. Indian J. Vet. Med. 13: 90-91.

Sharma, D.K., Chauhan, P.P.S. and Agrawal, D. (2000). Haematological changes in experimental heamonchosis in barbari goats. Indian J. Anim. Sci. 70 : 353-55.

(a)--Brand of Intas Animal Health, Ahmedabad

Vandna Bhanot (1), Kamaldeep (2) and O.P. Mehla (3)

Disease Investigation Laboratory Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS) Near Court Road Ambala City--134003 (Haryana)

(1.) Assistant Disease Investigation Officer (ADIO) and Corresponding author.


(2.) Veterinary Surgeon

(3.) Senior District Extension Specialist (Sr. DES)
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Title Annotation:Short Communication
Author:Bhanot, Vandna; Kamaldeep; Mehla, O.P.
Publication:Intas Polivet
Geographic Code:9INDI
Date:Jan 1, 2016
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