The Importance of Colostrum
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Questions and Answers

Which of the following is a function of colostrum?

  • Development of adaptive immunity
  • Activation of cell-mediated immune responses
  • Provision of energy and fluid (correct)
  • Development of Parasitic immune response

What percentage of total immunoglobulins in colostrum is accounted for by IgG?

  • 5%
  • 85% to 90% (correct)
  • 10% to 15%
  • 7%

What is the most important part of colostrum for a cow?

  • To transfer passive immunity (correct)
  • To provide energy and fluid
  • To develop adaptive immunity
  • To activate cell-mediated immune responses

What is the main function of immunoglobulins in colostrum?

<p>Transfer of passive immunity (C)</p> Signup and view all the answers

What is the role of colostrum in the development of the early gastrointestinal microbiota?

<p>To develop the biome (A)</p> Signup and view all the answers

Which bacteria are gradually acquired in the gut microbiota of calves during the first 3 days of life?

<p>Enterococcus and Enterobacteriaceae (D)</p> Signup and view all the answers

What is the single most important management factor in determining calf health and survival?

<p>Colostrum management (D)</p> Signup and view all the answers

What does this image show?

<p>Fibrinosuppurative pneumonia (A)</p> Signup and view all the answers

What is the target IgG level at 4 hours of age for a foal?

<blockquote> <p>10g/L (D)</p> </blockquote> Signup and view all the answers

What is the Brix value that corresponds to an IgG level > 50mg/ml?

<blockquote> <p>22% (C)</p> </blockquote> Signup and view all the answers

What is the target serum IgG level for a foal in the UK?

<blockquote> <p>8g/L (A)</p> </blockquote> Signup and view all the answers

What unit is used to measure IgG levels in the US?

<p>mg/dL (D)</p> Signup and view all the answers

What are the functions of colostrum?

<p>The functions of colostrum include provision of energy and fluid, transfer of passive immunity, and development of the early gastrointestinal microbiota.</p> Signup and view all the answers

What is the importance of colostrum in protecting the neonate?

<p>Colostrum protects the neonate in the first few months of life until its own adaptive immunity improves.</p> Signup and view all the answers

What percentage of total immunoglobulins in colostrum is accounted for by IgG?

<p>IgG accounts for approximately 85% to 90% of the total immunoglobulins in colostrum.</p> Signup and view all the answers

What is the role of colostrum in the development of the early gastrointestinal microbiota?

<p>Colostral leukocytes fed alone are not sufficient to protect calves from fatal disease in the neonatal period. Development of the faecal microbiota: Change in gut microbiota. Gradual acquisition of Enterococcus and Enterobacteriaceae (Colostrum/milk derived bacteria) during the first 3 days, followed by Prevotella, Blautia, Ruminococcus after day 3.</p> Signup and view all the answers

What are some shared Operational Taxanomic Units (OTUs) between meconium, mares' gut microbiota, and amniotic fluid?

<p>There are 6 OTUs shared between all 3, 75 between meconium and the mares' gut, and 32 between meconium and amniotic fluid.</p> Signup and view all the answers

What is the importance of the Brix value in determining good quality colostrum?

<p>A Brix value greater than 22% corresponds to an IgG level greater than 50mg/ml, indicating good quality colostrum.</p> Signup and view all the answers

What intervention can have a dramatic impact in cases of failure of passive transfer of immunity?

<p>A plasma infusion from mares with high circulating antibody levels can raise the IgG level to the target level after infusion.</p> Signup and view all the answers

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