Avian Viral Hepatitis

HopefulSage avatar
HopefulSage
·
·
Download

Start Quiz

Study Flashcards

Questions and Answers

What is the basis for diagnosing aflatoxicosis in livestock?

Clinical signs and liver lesions

In the context of treating aflatoxicosis, what should be done if animals are immunosuppressed?

Consider antimicrobial therapy for infectious processes

Why is it important to avoid aflatoxin-contaminated feed during drought or widespread contamination?

To reduce contamination of aflatoxin M1 in milk

Which mycotoxin binder is generally recognized to be effective in binding aflatoxin in feed?

<p>Hydrated sodium calcium aluminosilicates (HSCAs)</p> Signup and view all the answers

What type of metabolites are aflatoxins?

<p>Bisfuranocoumarins</p> Signup and view all the answers

At what temperature is mold growth typically sufficient for the production of aflatoxins?

<p>&gt;21.1°C (70°F)</p> Signup and view all the answers

What is the role of HSCAs in reducing aflatoxin effects in animals?

<p>Bind aflatoxins and reduce absorption</p> Signup and view all the answers

Why should aflatoxin-contaminated feed be avoided in lactating animals?

<p>Risk of aflatoxin M1 residue in milk</p> Signup and view all the answers

In what way do sodium bentonites and polymeric glucomannans affect aflatoxin residues in poultry and dairy cattle?

<p>Have partial efficacy in reducing residues</p> Signup and view all the answers

What is a common effect of aflatoxins on different species?

<p>Liver damage</p> Signup and view all the answers

Why are mycotoxin binders like hydrated sodium calcium aluminosilicates used in animal feed?

<p>To mitigate adverse effects of mycotoxins</p> Signup and view all the answers

What is the primary reason for not using aflatoxin-contaminated feed in lactating animals?

<p>To prevent aflatoxin M1 residue in milk</p> Signup and view all the answers

Which organ is the major target of aflatoxin toxicity?

<p>Liver</p> Signup and view all the answers

What is a potential consequence of prolonged exposure to low concentrations of aflatoxins?

<p>Diffuse liver fibrosis</p> Signup and view all the answers

How are acutely affected animals by aflatoxin toxicity identified?

<p>Increase in liver enzymes</p> Signup and view all the answers

What can be detected in the urine, liver, kidney, or milk of lactating animals with high aflatoxin intakes?

<p>Aflatoxin M1</p> Signup and view all the answers

What is one method to reduce aflatoxin contamination in grain?

<p>Cleaning to remove lightweight or broken grains</p> Signup and view all the answers

What is NOT currently approved by the US FDA for use in food animals to reduce aflatoxin contamination?

<p>Ammoniation</p> Signup and view all the answers

Which type of aflatoxin is recognized as the predominant toxin found in crops?

<p>Aflatoxin B1</p> Signup and view all the answers

In which organ are aflatoxins metabolized to an epoxide that binds to macromolecules?

<p>Liver</p> Signup and view all the answers

What is the acceptable regulatory concentration range for aflatoxins in milk in different countries?

<p>0.05-0.5 ppb</p> Signup and view all the answers

Which animals are relatively resistant to the acute form of aflatoxicosis?

<p>Adult cattle</p> Signup and view all the answers

What specific laboratory change is associated with liver damage due to aflatoxins?

<p>Increased AST concentration</p> Signup and view all the answers

At what dietary concentration do aflatoxins generally cause acute clinical disease, including mortality?

<p>&lt;= 50 ppb</p> Signup and view all the answers

What is one of the primary effects of reduced protein synthesis due to aflatoxins?

<p>Reduced production of essential metabolic enzymes</p> Signup and view all the answers

Which animals are susceptible if toxic diets containing aflatoxins are fed over long periods?

<p>Cattle</p> Signup and view all the answers

What type of outbreaks are more usual in animals suffering from aflatoxicosis?

<p>Subacute outbreaks with reduced growth and feed efficiency</p> Signup and view all the answers

What is the primary organ affected by high dosages of aflatoxins?

<p>Liver</p> Signup and view all the answers

More Quizzes Like This

Use Quizgecko on...
Browser
Browser