Scrapie, Biology

Assignment Help:

Scrapie

This is a chronic fatal disease of sheep and occasionally of goats caused by a Prion agent similar to BSE. The disease is reported from Europe, North America and in a few countries of Africa and Asia.

Clinical signs: Incubation period is of 2-5 years. Affected sheep show excitement, signs of muscular tremors of head and neck, wavering gait, vacant look and paraplegia. Sheep develop pruritus with wool loss and skin rubbed raw. They loose weight and ultimately die.

Diagnosis: The disease is diagnosed by the clinical signs, direct electron microscopy of brain material or demonstration of Prion protein by Western blot. The agent can be transmitted to mice and hamster and these species are being used as laboratory models for characterizing the agent.


Prevention and control:
The disease is controlled by systematic detection of infected  and in-contact animals and their disposal by slaughter and consequently building disease free "certified flocks".


Related Discussions:- Scrapie

Explain regulation of glycolysis, Regulation of Glycolysis There are th...

Regulation of Glycolysis There are three markedly exergonic reactions in  the glycolytic pathway, which  are considered physiologically irreversible. These reactions are cataly

What are the two main types of endocytosis, What are the two main types of ...

What are the two main types of endocytosis? Endocytosis can be divided as pinocytosis or phagocytosis. In pinocytosis small particles on the external surface of the membrane ex

Rigid fixation to evaluate osseointegration, Q. Rigid fixation to evaluate ...

Q. Rigid fixation to evaluate osseointegration? Is a clinical term that means absence of observed mobility. Rigid fixation indicates the absence of clinical mobility of an impl

Define intracellular fluid or the water within the cells, Define intracellu...

Define intracellular Fluid or the water within the cells? The intracellular Fluid or the water within the cells makes up about 40-4596 of the total body weight. Because the bod

Male reproductive disorders, MALE REPRODUCTIVE DISORDERS Generally, ab...

MALE REPRODUCTIVE DISORDERS Generally, about 5-10% of cattle bulls reaching sexual maturity would be suffering from poor reproductive efficiency or sterility. Crossbreeding ha

Describe the basic types of leukocytes, Q. What are the kinds of leukocytes...

Q. What are the kinds of leukocytes and how are they classified into granulocytes and agranulocytes? The kinds of lymphocytes are leukocytes, neutrophils, monocytes, basophils

Importance of forests - habitat and food, Importance of Forests - Habitat a...

Importance of Forests - Habitat and Food Forests provide habitat, and food as well as protection to wildlife species against extremes of climate and help in balancing carbon d

Adp-atp system of energy exchange, ADP-ATP system  of energy  exchange : ...

ADP-ATP system  of energy  exchange : In 1929 Lohmann, Fiske and  subbarow  published  their  discovery  that the energy  exchanges  compounds in all biological  systems  are t

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