How much do you know about the factors affecting fish growth in aquaculture?

What are the two main factors that determine fish growth in aquaculture?

Internal (fish-related) and external (environment-related) factors.

What are some of the internal factors that affect fish growth in aquaculture?

<p>Species, sex, health, age, weight, body composition, and genetics.</p> Signup and view all the answers

<p>What are some of the external factors that affect fish growth in aquaculture?</p> Signup and view all the answers

<p>Husbandry practices, water quality, and feed.</p> Signup and view all the answers

<p>What is the most economically important external factor that affects fish growth in aquaculture?</p> Signup and view all the answers

<p>Feed.</p> Signup and view all the answers

<p>What are some of the factors related to feed that affect fish growth in aquaculture?</p> Signup and view all the answers

<p>Density, handling, feeding method, composition, formulation, and physical aspects.</p> Signup and view all the answers

<p>How can the intensity of aquaculture systems be described?</p> Signup and view all the answers

<p>Using a sigmoid growth curve.</p> Signup and view all the answers

<p>What affects growth potential in fish in aquaculture?</p> Signup and view all the answers

<p>Internal and external factors, including nutrition and environment.</p> Signup and view all the answers

<p>What is compensatory growth?</p> Signup and view all the answers

<p>Higher feed intake and efficiency due to variability in the environment, including nutrition.</p> Signup and view all the answers

<p>What is an example of seasonal variation in growth in some fish species in aquaculture?</p> Signup and view all the answers

<p>Sole.</p> Signup and view all the answers

<p>What are some of the factors that can interact to affect fish growth in complex ways?</p> Signup and view all the answers

<p>Nutrients, oxygen, and toxins.</p> Signup and view all the answers

<p>Why is growth important in aquaculture?</p> Signup and view all the answers

<p>For economic reasons.</p> Signup and view all the answers

<p>What is the most important factor for economic growth in aquaculture?</p> Signup and view all the answers

<p>Feed.</p> Signup and view all the answers

<p>What is the ultimate goal in aquaculture?</p> Signup and view all the answers

<p>The ultimate goal in aquaculture is the production of operation for business and profit, which requires boosting growth and weight.</p> Signup and view all the answers

<p>What are the factors that affect growth in fish?</p> Signup and view all the answers

<p>The factors that affect growth in fish include feed conversion ratio, growth rate, survival, and quality of the end product.</p> Signup and view all the answers

<p>What are the internal and external conditions that influence growth in fish?</p> Signup and view all the answers

<p>Internal conditions that influence growth in fish include species, sex, health, history, genetics, and external conditions such as husbandry, water quality, and feed composition.</p> Signup and view all the answers

<p>How is growth defined in fish?</p> Signup and view all the answers

<p>Growth in fish is defined as an increase in the size of fish over time and can be quantified in various ways such as volume, mass, length, energy, protein, fat, or dry matter.</p> Signup and view all the answers

<p>What is compensatory growth?</p> Signup and view all the answers

<p>Compensatory growth is an accelerated growth rate that occurs under sub-optimal growth conditions.</p> Signup and view all the answers

<p>What are the causes of high growth rates during compensatory growth?</p> Signup and view all the answers

<p>High growth rates during compensatory growth can be caused by higher feed intake, higher efficiency, lower maintenance, and changes in body composition.</p> Signup and view all the answers

<p>What are the factors that affect seasonal variations in fish growth?</p> Signup and view all the answers

<p>Seasonal variations in fish growth are affected by factors such as temperature and food availability.</p> Signup and view all the answers

<p>Why do crustaceans experience discontinuous growth?</p> Signup and view all the answers

<p>Crustaceans experience discontinuous growth due to molting, which is responsible for the discontinuous nature of their growth.</p> Signup and view all the answers

<p>What are the factors that can affect the relationship between feed intake and growth in fish?</p> Signup and view all the answers

<p>The factors that can affect the relationship between feed intake and growth in fish include nutrition, animal-related factors, and environmental factors.</p> Signup and view all the answers

<p>What can cause a curvilinear relationship between growth and feed ration in fish?</p> Signup and view all the answers

<p>A curvilinear relationship between growth and feed ration in fish can be caused by experimental error, feed spillage, change in body composition, and individual variation in R.max.</p> Signup and view all the answers

<p>What are the factors that can affect growth performance in fish?</p> Signup and view all the answers

<p>Factors that can affect growth performance in fish include nutrients, oxygen, toxins, NH4, CO2, temperature, pH, and stocking density.</p> Signup and view all the answers

<p>What are some other factors that can affect the relationship between feed ration and growth in fish?</p> Signup and view all the answers

<p>Other factors that can affect the relationship between feed ration and growth in fish include feed quality and swimming activity.</p> Signup and view all the answers

<p>What is the ultimate goal in aquaculture?</p> Signup and view all the answers

<p>The production of operation for business and profit, which requires boosting growth and weight.</p> Signup and view all the answers

<p>What are some of the internal factors that can affect growth in fish?</p> Signup and view all the answers

<p>Species, sex, health, history, genetics.</p> Signup and view all the answers

<p>What are some of the external factors that can affect growth in fish?</p> Signup and view all the answers

<p>Husbandry, water quality, and feed composition.</p> Signup and view all the answers

<p>How is growth in fish defined?</p> Signup and view all the answers

<p>As an increase in the size of fish over time, quantified in various ways such as volume, mass, length, energy, protein, fat, or dry matter.</p> Signup and view all the answers

<p>What is compensatory growth?</p> Signup and view all the answers

<p>An accelerated growth rate that occurs under sub-optimal conditions.</p> Signup and view all the answers

<p>What can cause high growth rates during compensatory growth?</p> Signup and view all the answers

<p>Higher feed intake, higher efficiency, lower maintenance, and changes in body composition.</p> Signup and view all the answers

<p>What are some of the factors that affect seasonal variations in fish growth?</p> Signup and view all the answers

<p>Temperature and food availability.</p> Signup and view all the answers

<p>Why do crustaceans experience discontinuous growth?</p> Signup and view all the answers

<p>Due to molting.</p> Signup and view all the answers

<p>What are some of the factors that can affect the relationship between feed intake and growth in fish?</p> Signup and view all the answers

<p>Nutrition, animal-related factors, and environmental factors.</p> Signup and view all the answers

<p>What can cause a curvilinear relationship between growth and feed ration?</p> Signup and view all the answers

<p>Experimental error, feed spillage, change in body composition, and individual variation in R.max.</p> Signup and view all the answers

<p>What are some of the factors that can affect growth performance in fish?</p> Signup and view all the answers

<p>Nutrients, oxygen, toxins, NH4, CO2, temperature, pH, and stocking density.</p> Signup and view all the answers

<p>What are some other factors that can affect the relationship between feed ration and growth in fish?</p> Signup and view all the answers

<p>Feed quality and swimming activity.</p> Signup and view all the answers