Podcast
Questions and Answers
What role does bovine somatotropin (BST) play in milk production?
What role does bovine somatotropin (BST) play in milk production?
- It affects the water content in milk.
- It decreases overall milk yield.
- It regulates and can increase milk yield when injected. (correct)
- It is used to measure the lactation curve.
What does the lactation curve represent?
What does the lactation curve represent?
- The total quantity of milk produced during a cow's life.
- The fluctuations in milk production across multiple lactation cycles.
- The time course of milk production during a specific lactation period. (correct)
- The duration of time it takes for a cow to produce peak milk yield.
Which of the following factors is essential for optimal milk production in cows?
Which of the following factors is essential for optimal milk production in cows?
- High protein levels in feed.
- Sufficient calcium levels. (correct)
- Low water intake.
- Increased ambient temperature.
How much milk can cows typically produce each day?
How much milk can cows typically produce each day?
What percentage of milk is composed of water?
What percentage of milk is composed of water?
Flashcards
Bovine Somatotropin (BST)
Bovine Somatotropin (BST)
A hormone naturally found in cows that regulates milk production. When injected, it can increase milk yield.
Lactation Curve
Lactation Curve
A graph showing how much milk a cow produces over a lactation period (usually 305 days). It shows the peak production and the overall trend.
Factors Affecting Milk Production
Factors Affecting Milk Production
Various things that influence how much milk a cow produces, including: Calcium, water content in milk, and other factors.
Average Lactation Period
Average Lactation Period
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Milk Composition
Milk Composition
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Study Notes
Bovine Somatotropin (BST)
- BST is a naturally occurring hormone in cows
- It's injected to increase milk production
- Increases milk yield and reduces milk fat content
Lactation Period
- Lactation is the time a cow produces milk
- Milk production follows a curve
- Milk yield peaks during the lactation period
- The lactation curve shows milk production over time
Milk Production
- Milk production varies depending on the cow's breed
- Average lactation for dairy cows is 305 days for standard breeds
- A gallon of milk is approximately 8.6155 pounds
- Milk is mostly made up of water (around 87%)
Calcium Levels
- Calcium is crucial for optimum milk production and growth in cows
- The ideal calcium level in milk is between 8.8-10.4 mg per 100 ml milk
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Description
This quiz explores the role of bovine somatotropin (BST) in milk production and the lactation period in cows. It covers various aspects of milk yield, calcium levels, and factors influencing milk production. Test your knowledge and learn more about dairy farming practices.
