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

Phylum annelida, what so special for phylum annelida

what so special for phylum annelida

Enumerate about the traumatic brain injuries, Enumerate about the Traumatic...

Enumerate about the Traumatic brain injuries Brain injury is a common result of automobile and industrial accidents and of war injuries. Brain injury can affect brain function

Do algae reproduce sexually or asexually, Do algae reproduce sexually or as...

Do algae reproduce sexually or asexually? There are algae that replicate sexually and there are algae that replicate asexually. In unicellular algae reproduction is usually

Glycosylated hemoglobin, Pre-Diabetes is a condition where blood sugar leve...

Pre-Diabetes is a condition where blood sugar level is above normal but below the value to be diagnosed as diabetes mellitus. It has been found that those people with blood sugar v

Determine the treatment modalities of cis therapy, The protocol includes fo...

The protocol includes four treatment modalities: A = Mechanical Debridement In this the patients are re-instructed in oral hygiene and motivated to initiate and continue m

Conditions required for mimicking pericardial effusion, Q. Conditions requi...

Q. Conditions required for Mimicking Pericardial Effusion? In 2DE few conditions can mimic PE. a) Pericardial fat-Mostly localized anteriorly. Absence of fat in the posterio

Explain about folic acid, Explain about Folic acid Folic acid occurs as...

Explain about Folic acid Folic acid occurs as a yellow or orange-yellow, microcrystalline powder, almost without odour and taste. Water content of folic acid is up to 8.5%. Fol

External budgets - nutrient budgets, External budgets - Nutrient Budgets ...

External budgets - Nutrient Budgets In contrast the external budgets pertain to the input and output of the entire ecosystem in relation to other ecosystems. For instance volc

Describe consciousness as the waking state, Q. Describe Consciousness as th...

Q. Describe Consciousness as the waking state? Consciousness as the waking state: consciousness is also referred to as the waking state as opposed for example to sleep. All

Illustrate the horizons in detail, Illustrate the Horizons in detail 'O...

Illustrate the Horizons in detail 'O'  is the  organic horizon  formed from t he organic litter derived from plants and animals and fresh or partially decomposed organic materi

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