Metabolic Adaptations to Heat Stress in Goat Breeds
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Questions and Answers

What is a common hematological alteration observed in dairy cows under the influence of heat stress?

  • Increased white blood cell count
  • Decreased hemoglobin levels (correct)
  • Elevated platelet count
  • Decreased red blood cell count

How does heat stress affect the Fas gene expression in bovine blood neutrophils?

  • Downregulates Fas gene expression
  • Has no effect on Fas gene expression
  • Causes mutations in the Fas gene
  • Upregulates Fas gene expression (correct)

Which physiological system is affected by the pineal-adrenal-immune system relationship under thermal stress in goats?

  • Respiratory system
  • Muscular system
  • Digestive system
  • Endocrine system (correct)

What are some common metabolic alterations observed in Bos taurus cattle during heat stress?

<p>Altered glucose metabolism (D)</p> Signup and view all the answers

What is a hematological action associated with androgens in animals?

<p>Enhanced hemoglobin synthesis (B)</p> Signup and view all the answers

What are some physiological responses that can be measured to quantify an animal's thermotolerance?

<p>Surface temperature and rectal temperature (D)</p> Signup and view all the answers

How does heat stress impact feed efficiency in young Nellore males and females?

<p>Reduces feed efficiency (A)</p> Signup and view all the answers

How can factors related to the skin surface influence an animal's adaptiveness to heat stress?

<p>Coat color and hair length (B)</p> Signup and view all the answers

Which factors can directly influence an animal's response to heat stress?

<p>Breed, age, sex, and metabolic rate (A)</p> Signup and view all the answers

What are some potential adaptations observed in animals with high heat tolerance?

<p>Higher protection against sunlight and better animal welfare (D)</p> Signup and view all the answers

How does heat stress impact feed intake in animals?

<p>Reduces feed intake leading to production and health losses (B)</p> Signup and view all the answers

What distinguishes zebu breeds (Bos taurus indicus) from taurine breeds (Bos taurus taurus) in terms of heat tolerance?

<p>Zebu breeds have higher heat tolerance (A)</p> Signup and view all the answers

What is the main focus of the study by Pragna et al. (2018) mentioned in the text?

<p>Metabolic alterations in indigenous goat breeds during summer heat stress (A)</p> Signup and view all the answers

Which study discussed the correlation between blood, physiological, and behavioral parameters in beef calves under heat stress?

<p>Kim et al. (2018) (A)</p> Signup and view all the answers

Which research article provided an updated review on the physiological adaptability of livestock to heat stress?

<p>Rashamol et al. (2018) (A)</p> Signup and view all the answers

In which study were the summer season induced rhythmic alterations in metabolic activities observed in indigenous goat breeds?

<p>Pragna et al. (2018) (B)</p> Signup and view all the answers

Where was the study on heat tolerance responses in Bos taurus cattle conducted?

<p>Brazil (C)</p> Signup and view all the answers

Which study focused on the adaptation strategies for ruminants to cope with heat stress?

<p>Gaughan et al. (2019) (B)</p> Signup and view all the answers

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