Foot-rot, Biology

Assignment Help:

Foot-rot

Foot-rot is a term applied to the condition of feet of cattle, sheep, goats and sometimes pigs. It is characterized by inflammation, necrosis and ulceration of underlying tissues of foot. The disease is widespread in many tropical countries with highest incidence in sheep. The disease is related to climatic conditions. High temperature and humidity favour the disease. Foot rot in cattle and sheep is caused by Fusobacterium necrophorum complicated by Dichelobacter nodosus, especially in sheep.


Transmission:
Animals in chronic state transmit infection directly to healthy animals. The sheep can remain as carrier for 3-4 years. Conditions of wetness and warmth favour the persistence of bacteria in the pasture. Infected cattle may often serve as the source of infection.


Symptoms:
The earliest sign of foot-rot is swelling and moistness of skin of inter  digital cleft. This is accompanied by lameness which increases as necrosis under-runs the horn in cleft. The animal may carry the leg or walk on its knees. In severe cases, there may be anorexia and fever. Symptom less carriers may be present for a period up to 3 years.A history of lameness in a flock is suggestive of foot-rot. This can be confirmed from clinical examination of typical lesions and microscopical examination of smears from the lesions after staining with Gram’s strain or Loeffler’s methylene blue. The organisms appear pink coloured short rods.


Diagnosis: It is difficult to diagnose foot-rot. Identification of Gram-negative bacilli is sufficient to diagnose the disease.


Treatment and control: wet pastures should be properly drained. The affected hooves of the diseased animals should be trimmed. The exposed infected tissue should be treated with 10% formalin or with chloramphenicol or tetracycline. The parenteral treatment with a mixture of penicillin and streptomycin is of value.


Related Discussions:- Foot-rot

Define nitrogen requirements in pregnancy and lactation, Define Nitrogen re...

Define Nitrogen requirements in Pregnancy and Lactation? The nitrogen accretion in the pregnant woman (assuming that the foetus weighs 3.3 kg at term), estimated by the Committ

Explain the polycarbonate nucleopore filtre, Explain the Polycarbonate Nucl...

Explain the Polycarbonate Nucleopore Filtre? A given sample is filtered through a membrane filter, usually polycarbonate nucleopore filter with a pore size that will retain bac

Fungi, is the have 100 nuclus ?

is the have 100 nuclus ?

International organization and zoonoses, International organization and zoo...

International organization and zoonoses In 1962, the Food and Agriculture Organization and the World Health Organization created the Codex Alimentarius Commission (Codex) to e

Structure of phloem, Structure of Phloem In this we will explain the s...

Structure of Phloem In this we will explain the structural and functional relationship of phloem and compare it with xylem. The location of phloem with respect to other tissue

Dietary management of oesophagitis, Q. Dietary Management fo oesophagitis? ...

Q. Dietary Management fo oesophagitis? Providing adequate nutrition support may require emphasis of different aspects during acute and chronic oesophagitis. In acute phase,

Viral diseases of domestic animals, Cattle and buffalo diseases Rinde...

Cattle and buffalo diseases Rinderpest: Rinderpest is the most destructive of the virus diseases of cloven-footed animals, viz. cattle, buffaloes, sheep, goats, pigs and wil

What is a retrovirus, It is a category of viruses having RNA genome and rev...

It is a category of viruses having RNA genome and reverse transcriptase enzyme within virus cuspid.

Explain treatment of latent tb infection, Treatment of latent tb infection ...

Treatment of latent tb infection The risk of developing clinical tuberculosis is greatest in patients with latent TB who are also infected with HIV or are receiving immunosuppr

The control group should be identical, If you have a control group for your...

If you have a control group for your experience, which of the following statements is true? A. The control group should be identical to each test group with the exception of one va

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd