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 the gall bladder disease - effect of obesity, Explain the Gall blad...

Explain the Gall bladder disease - Effect of Obesity? Obesity is one of the risk factors for formation of gallstones. The super saturation of bile with cholesterol in obese ind

Cytological approach, Write an essay on cytological approach in taxonomy.

Write an essay on cytological approach in taxonomy.

Define about the photometry - colorimetry, Define about the Photometry - co...

Define about the Photometry - colorimetry? Photometry is the measurement of the luminous intensity light or the amount of luminous light falling on a surface from such a source

What are the symptoms of dyslipidemia, Q. What are the Symptoms of dyslipid...

Q. What are the Symptoms of dyslipidemia? The main symptom is presence of xanthoma: This is a yellowish swelling, nodule or plaque in the skin resulting from deposits of fat. T

What is surgical therapy, Surgical Therapy The clinician may use a surg...

Surgical Therapy The clinician may use a surgical approach when non-surgical therapies are not indicated or are unsuccessful. The surgical techniques are modified from those

Describe ts murmur and their characterstic, Describe TS Murmur and their ch...

Describe TS Murmur and their characterstic ? Characteristic: It is a rumbling, and diastolic murmur heard at left lower sterna border that increases with inspiration. An OS may

Changes in the conformation - qualitative changes, Changes in the conformat...

Changes in the conformation of molecules - Qualitative Changes You may recall that linear chain of amino acids of a protein folds into a characteristic structure. Acidic resid

Can you explain ventricular tachycardia, Q. Can you explain Ventricular Tac...

Q. Can you explain Ventricular Tachycardia? The term is usually reserved for at least four or more beats and modified by the term non sustained. Short runs of non-sustained VT

Prevention and control from escherichia coli, Q. Prevention and Control fro...

Q. Prevention and Control from escherichia coli? Prevention and Control: Involves avoiding contaminated food and water that have high coliform counts, avoiding unpasteurized ju

Diet for cardiac patients, Diet Continue diet as prescribed at hospita...

Diet Continue diet as prescribed at hospital. Some may continue fluid and salt restriction, some may have to restrict iron and Vitamin K rich food stuff. The patient needs 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