Metabolic Adaptations to Heat Stress in Goat Breeds

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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?

Altered glucose metabolism (D) Signup and view all the answers

What is a hematological action associated with androgens in animals?

Enhanced hemoglobin synthesis (B) Signup and view all the answers

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

Surface temperature and rectal temperature (D) Signup and view all the answers

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

Reduces feed efficiency (A) Signup and view all the answers

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

Coat color and hair length (B) Signup and view all the answers

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

Breed, age, sex, and metabolic rate (A) Signup and view all the answers

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

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

How does heat stress impact feed intake in animals?

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

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

Zebu breeds have higher heat tolerance (A) Signup and view all the answers

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

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

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

Kim et al. (2018) (A) Signup and view all the answers

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

Rashamol et al. (2018) (A) Signup and view all the answers

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

Pragna et al. (2018) (B) Signup and view all the answers

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

Brazil (C) Signup and view all the answers

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

Gaughan et al. (2019) (B) Signup and view all the answers