Podcast
Questions and Answers
What environmental conditions contribute to excessive heat load in feedlot cattle?
What environmental conditions contribute to excessive heat load in feedlot cattle?
- Persistent high ambient temperature, high humidity, limited air movement, and minimal temperature drops at night. (correct)
- Low ambient temperature, low humidity, high air movement, and significant temperature drops at night.
- Low humidity, high air movement, and significant temperature drops at night.
- Variable ambient temperature, low humidity, limited air movement, and significant temperature drops at night.
Which of the following is NOT a recommended practice for preventing heat stress in feedlot cattle?
Which of the following is NOT a recommended practice for preventing heat stress in feedlot cattle?
- Providing shade to the cattle.
- Cleaning pens to reduce humid microenvironments.
- Implementing a risk management plan for water delivery.
- Limiting cattle movements and handling to the hottest parts of the day. (correct)
Which dietary strategy is most effective for managing heat load in feedlot cattle?
Which dietary strategy is most effective for managing heat load in feedlot cattle?
- Increasing rumen available fat above 10%.
- Substituting starch with oil to maintain energy density while decreasing heat of fermentation. (correct)
- Decreasing the supply of amino acids to reduce protein metabolism.
- Supplementing with high levels of starch to increase fermentation.
What are some potential triggers for activating a Heat Load Action Plan in feedlot cattle management?
What are some potential triggers for activating a Heat Load Action Plan in feedlot cattle management?
Including sodium bicarbonate (NaHCO3) at 1% in a heat load diet for feedlot cattle primarily serves what purpose?
Including sodium bicarbonate (NaHCO3) at 1% in a heat load diet for feedlot cattle primarily serves what purpose?
What is the primary role when supplementing seasonal vitamin E in feedlot cattle diets?
What is the primary role when supplementing seasonal vitamin E in feedlot cattle diets?
Pen cleaning is an important practice in managing feedlot environments. What is the primary reason for this relative to heat stress prevention?
Pen cleaning is an important practice in managing feedlot environments. What is the primary reason for this relative to heat stress prevention?
Which aspect of water management is most critical in preventing heat stress in feedlot cattle?
Which aspect of water management is most critical in preventing heat stress in feedlot cattle?
What is a key characteristic of conditions leading to excessive heat load in feedlot cattle?
What is a key characteristic of conditions leading to excessive heat load in feedlot cattle?
Besides providing shade, what additional cooling strategies can be employed to mitigate heat stress in feedlot cattle?
Besides providing shade, what additional cooling strategies can be employed to mitigate heat stress in feedlot cattle?
What is the significance of monitoring panting scores in feedlot cattle during periods of high heat?
What is the significance of monitoring panting scores in feedlot cattle during periods of high heat?
In heat stress management, why is it important to adjust the diet to have less than 6% rumen available fat?
In heat stress management, why is it important to adjust the diet to have less than 6% rumen available fat?
How do proactive strategies focused on roles and responsibilities contribute to managing heat stress in a feedlot environment?
How do proactive strategies focused on roles and responsibilities contribute to managing heat stress in a feedlot environment?
Which of the following best articulates the relationship between humidity and air movement regarding heat stress?
Which of the following best articulates the relationship between humidity and air movement regarding heat stress?
Why is the timing of cattle handling and movements crucial for heat stress prevention?
Why is the timing of cattle handling and movements crucial for heat stress prevention?
How does the provision of shade structures directly combat heat stress in feedlot cattle?
How does the provision of shade structures directly combat heat stress in feedlot cattle?
What aspect of selenium (Se) supplementation is most vital for feedlot cattle's health and resilience during periods of environmental stress?
What aspect of selenium (Se) supplementation is most vital for feedlot cattle's health and resilience during periods of environmental stress?
When managing botulism in feedlot cattle, what actions should be taken concerning the disposal of affected animals?
When managing botulism in feedlot cattle, what actions should be taken concerning the disposal of affected animals?
What is the main reason for implementing a risk management plan that focuses on water delivery strategies?
What is the main reason for implementing a risk management plan that focuses on water delivery strategies?
How might excessive heat load compromise the well-being of feedlot cattle?
How might excessive heat load compromise the well-being of feedlot cattle?
Which characteristic of air movement is most important for mitigating excessive heat-load circumstances among feedlot cattle?
Which characteristic of air movement is most important for mitigating excessive heat-load circumstances among feedlot cattle?
Outside of the feedlot, what factors contribute to heat stress?
Outside of the feedlot, what factors contribute to heat stress?
What is one of the dangers of botulism?
What is one of the dangers of botulism?
What does cleaning the pen help in preventing?
What does cleaning the pen help in preventing?
When is the suggested time to handle cattle if you are trying to prevent excessive heat load?
When is the suggested time to handle cattle if you are trying to prevent excessive heat load?
What is substituted in the heat load diet?
What is substituted in the heat load diet?
Aside from the diet, what else should happen in an attempt to combat heat load?
Aside from the diet, what else should happen in an attempt to combat heat load?
What has to be put in place to more effectively combat heat load?
What has to be put in place to more effectively combat heat load?
What is the goal of the substitution that occurs relating to heat load dieting?
What is the goal of the substitution that occurs relating to heat load dieting?
Why is shade suggested to help combat heat load?
Why is shade suggested to help combat heat load?
What are the ambient conditions associated with Heat Stress?
What are the ambient conditions associated with Heat Stress?
What should vitamin E levels be to ensure proper levels?
What should vitamin E levels be to ensure proper levels?
Besides having the location cleaned, what should also be considered?
Besides having the location cleaned, what should also be considered?
What are misters and sprinklers?
What are misters and sprinklers?
What triggers the need to implement a plan in the event of increased heat load?
What triggers the need to implement a plan in the event of increased heat load?
Which is not a predetermined trigger to require acting upon the Heat Load?
Which is not a predetermined trigger to require acting upon the Heat Load?
Why is there less than 6% rumen available fat?
Why is there less than 6% rumen available fat?
As mentioned in the presentation, there must be a risk management plan. What does that plan apply to?
As mentioned in the presentation, there must be a risk management plan. What does that plan apply to?
What adjustment to the feed can help to maintain energy density while reducing the heat generated through fermentation?
What adjustment to the feed can help to maintain energy density while reducing the heat generated through fermentation?
What is the upper limit of rumen available fat in a heat load diet for feedlot cattle primarily designed to do?
What is the upper limit of rumen available fat in a heat load diet for feedlot cattle primarily designed to do?
Why is it crucial to minimize cattle movements and handle cattle during early morning only?
Why is it crucial to minimize cattle movements and handle cattle during early morning only?
How does including sodium bicarbonate (NaHCO3) in a heat load diet at 1% help feedlot cattle?
How does including sodium bicarbonate (NaHCO3) in a heat load diet at 1% help feedlot cattle?
What is the relationship between ambient temperature, humidity, and air movement that defines conditions of excessive heat load?
What is the relationship between ambient temperature, humidity, and air movement that defines conditions of excessive heat load?
Flashcards
What is Botulism?
What is Botulism?
A disease caused by the bacterium Clostridium botulinum, leading to paralysis.
Why is proper disposal crucial?
Why is proper disposal crucial?
Proper disposal of carcasses to prevent spread of botulism.
What is Excessive Heat Load?
What is Excessive Heat Load?
Occurs when animals accumulate more heat than they can dissipate.
What conditions exacerbate heat load?
What conditions exacerbate heat load?
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What is Heat Stress?
What is Heat Stress?
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Heat stressed vs healthy rumen?
Heat stressed vs healthy rumen?
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How does pen cleaning help?
How does pen cleaning help?
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Why provide extra water troughs?
Why provide extra water troughs?
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Best time for cattle handling?
Best time for cattle handling?
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Why is shade important?
Why is shade important?
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What is a 'heat load' diet?
What is a 'heat load' diet?
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How do misters help?
How do misters help?
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How do sprinklers help?
How do sprinklers help?
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What is a Heat Load Action Plan?
What is a Heat Load Action Plan?
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Study Notes
Feedlot Nutrition and Production: Potential Disasters
- Two potential disasters discussed are botulism and heat stress in feedlot settings.
Clostridial Diseases - Botulism
- Botulism is identified as a clostridial disease.
- Disposal methods after botulism outbreaks involve burial.
Excessive Heat Load
- Excessive heat load occurs under conditions of persistent high ambient temperature and humidity.
- This is coupled with little air movement and minimal temperature drop at night, resulting in accumulated heat.
- Excessive heat load has the potential for producing very large losses.
Heat Stress
- Pen cleaning is important for heat stress prevention, because manure and rain create a humid microenvironment.
- Providing additional water troughs helps prevent heat stress in livestock.
- Minimize cattle movements and only handle cattle during early morning to avoid heat stress.
- Providing shade helps prevent heat stress.
- A heat load diet helps to prevent heat stress.
- Risk management plans with sufficient water delivery are crucial.
- Training staff on roles and responsibilities for dealing with heat stress is essential.
Heat Load Diet
- Use of a heat load diet is an ongoing area of research.
- Starch can be substituted for oil to maintain energy density while reducing the heat of fermentation, with less than 6% rumen available fat.
- Increased supply of amino acids can equal providing protein meals.
- Inclusion of NaHCO3 at 1% (drool) in the diet helps.
- Supplement Selenium at NRC 0.1 mg/kg DM.
- Provide a seasonal vitamin E supplement at 60 IU/kg DM and ensure adequate AFS trace element concentrations.
Heat Stress Management
- Strategies include using misters, sprinklers, and providing shade.
- A heat load action plan should be implemented based on a heat load forecast from resources like http://www.katestone.com.au/mla.
- Pre-determined triggers for action include a panting score of 3+ at 9 am and/or a percentage drop in Average Daily intake (ADI).
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