Question:
Specific dynamic action is related to?
Specific dynamic action is related to?
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Think of SDA as the metabolic cost of processing a meal. It represents the energy spent to turn food into usable biological fuel.
Updated On: Jul 9, 2026
- Osmoregulation
- Excretion
- Feeding metabolism
- Reproduction
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Specific Dynamic Action (SDA), also referred to as the thermic effect of food (TEF), is the increase in metabolic rate (and thus oxygen consumption and heat production) that occurs after food ingestion.
Step 2: Detailed Explanation:
When a fish consumes feed, its body must expend energy to ingest, digest, absorb, transport, and assimilate the nutrients.
The protein content of the diet is the primary driver of SDA because peptide bond synthesis, transamination, and ammonia production are energy-intensive processes.
SDA can consume a significant portion of the digestible energy of a meal, often ranging from \(5\%\) to \(30\%\) depending on feed composition.
Therefore, SDA is fundamentally a component of feeding metabolism and bioenergetics.
Step 3: Final Answer:
Specific Dynamic Action is directly related to feeding metabolism.
Specific Dynamic Action (SDA), also referred to as the thermic effect of food (TEF), is the increase in metabolic rate (and thus oxygen consumption and heat production) that occurs after food ingestion.
Step 2: Detailed Explanation:
When a fish consumes feed, its body must expend energy to ingest, digest, absorb, transport, and assimilate the nutrients.
The protein content of the diet is the primary driver of SDA because peptide bond synthesis, transamination, and ammonia production are energy-intensive processes.
SDA can consume a significant portion of the digestible energy of a meal, often ranging from \(5\%\) to \(30\%\) depending on feed composition.
Therefore, SDA is fundamentally a component of feeding metabolism and bioenergetics.
Step 3: Final Answer:
Specific Dynamic Action is directly related to feeding metabolism.
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