Bovine leukemia, Biology

Assignment Help:

Bovine leukemia

Bovine leukemia, also known as bovine lymphosarcoma or leucosis, is a lymphoproliferative neoplastic disease of bovines. The virus belongs to genus Deltaretrovirus in the family Retroviridae. Oncogenesis depends on the integration of bovine proviral v-onc gene into cellular DNA. Transmission of Bovine leukemia virus occurs primarily by the transfer of lymphocytes between animals. The virus can be transmitted to the fetus but usually less than 40% calves born to infected dams are infected at birth.

Clinical signs: The symptoms of this disease are persistent lymphocytosis, leukemia and or lymphosarcoma in cattle. The lymphoid tumors are seen in lymph nodes, abomasums, heart, spleen, kidneys, uterus, spinal meninges, and brain.

Diagnosis: Antibodies to bovine leukemia virus antigens are demonstrated by immunodiffusion, radioimmunoassay, enzyme immunoassay, syncytium-inhibtion assay and complement-fixation test. The diagnosis is aided by the hematologic observations including lymphocytosis and the presence of immature lymphocytes. Electron microscopy, infectivity assay in cell-culture systems and sero-epidemiological observations provide a confirmatory diagnosis.

Prevention and control: Identification of the affected animals by serological testing followed by culling is the only available method of controlling this disease.


Related Discussions:- Bovine leukemia

Explain cell surface membrane, Diagram of a cell surface membrane.  ...

Diagram of a cell surface membrane.  State the width of a cell surface membrane. (i) On which side of the membrane, shown in Figure, X or Y, is the cytoplasm of the cell?

What are the habits of patients- implants, Habits of patients- Implants ...

Habits of patients- Implants Smoking has been shown to predispose to poor bone quality by reduced vascularity. Therefore it is prudent not to accept heavy smokers as implant pa

Describe about the argyll robertson pupil, Describe about the Argyll Robert...

Describe about the Argyll Robertson Pupil (ARP) Argyll Robertson Pupil (ARP) occurs in patients who have tertiary syphilis. There is a "light-near dissociation" because pupils

Cellular transport, Cellular Transport Cellular transports demote to th...

Cellular Transport Cellular transports demote to the movement of compounds across the outer wall or membrane of the cell. This transport is critical in two respects. Firstly, t

How biocompatibility of materials affect osseointegration, Q. How Biocompat...

Q. How Biocompatibility of materials affect osseointegration? Materials available of present are cpTi (commercially pure Titanium) Ti - 6AI - 4V (Titanium - 6 Aluminum - 4 Vana

Explain congenital heart disease (chd), Explain Congenital Heart Disease (C...

Explain Congenital Heart Disease (CHD)? Congenital heart disease is an abnormality at birth in cardiac circulatory structure or function. Optimal management of CHD aims not mer

Marine biology, What are the four characteristics that all chordates have ...

What are the four characteristics that all chordates have at some stage of their lifecycle ?

Explain about the endocrine system, Why is the endocrine system considered ...

Why is the endocrine system considered one of the integrative systems of the body? What is the other physiological system that also has this function? The endocrine system is s

Sea, sea divisions

sea divisions

Excretory organ, What is the excretory organ of lizard

What is the excretory organ of lizard

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