9427439
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Quiz von Sarah Alegretti Marques Lima, aktualisiert more than 1 year ago
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Erstellt von Sarah Alegretti Marques Lima
vor mehr als 7 Jahre
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Frage 1
Frage
According to the FAO, Fish In Fish Out is the number of tonnes of wild fish that takes to produce a tonne of farmed fish. The calculation is done according to the following formula:
Antworten
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FIFO = ((FM in feed%)/(FM yield from wild fish%) + (Level of FO in the feed)/(yield of FO from wild fish %))xFeed: gain ratio;
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FIFO = ((FO in feed%)/(FM yield from wild fish%) - (Level of FM in the feed)/(yield of FO from wild fish %))xFeed: gain ratio
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FIFO = ((FM in feed%)/(FM yield from wild fish%) + (Level of FO in the feed)/(yield of FO from wild fish %))/Feed: gain ratio
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FIFO = ((FO in feed%)/(FO yield from wild fish%) - (Level of FM in the feed)/(yield of FO from wild fish %))xFeed: gain ratio
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FIFO = ((FO in feed%)/(FM yield from wild fish%) +(Level of FM in the feed)/(yield of FM from wild fish %))/Feed: gain ratio
Frage 2
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The target FIFO for Sparus aurata is:
Antworten
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3.6
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4.5
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3.0
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2.9
Frage 3
Antworten
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Water, ammonia compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, fat soluble, and, inorganic.
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Raw matter, ammonia compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, fat soluble, and, inorganic.
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Water, nitrogenous compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, vitamin soluble, and, inorganic.
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Water, nitrogenous compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, fat soluble, and, inorganic.
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Water, nitrogenous compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, single, vitamins, vitamin soluble, and, inorganic.
Frage 4
Antworten
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Water,kjellerup-N, NFE, and, fibre.
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Moisture, kjellerup-N, NBE, and, Crude fibre.
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Moisture, Kjeldahl-N, NFE, and, fibre.
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Moisture, kjellerup-N, NFE, and, fibre.
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Moisture, Kjeldahl-N, NFE, and, Crude fibre.
Frage 5
Frage
Feeds are composed of water and dry matter and part of it corresponds to raw materials. Corn, straw, E, iron and yeast are sources of:
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Energy, fibre, vitamins, minerals and proteins.
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Energy, vitamins, fibre, minerals and proteins.
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Energy, fibre, minerals, vitamins and proteins.
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Energy, fibre, vitamins, proteins and minerals.
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Energy, proteins, vitamins, minerals and fibre.
Frage 6
Frage
There are 12 steps in aquafeed production, fill in the blanck spaces with the correct step.
Image:
Q6 (image/png)
Antworten
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Milling, temperature (80-180C), compression, coating (oil, vitamins, antioxidants).
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Milling, temperature (50-150C), compression, coating (oil, vitamins, antioxidants).
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Milling, temperature (80-180C), compression, heating (oil, vitamins, antioxidants).
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Sieving, temperature (80-180C), compression, coating (oil, vitamins, antioxidants).
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Sieving, temperature (50-150C), compression, coating (oil, vitamins, antioxidants).
Frage 7
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Protein
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Fat
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Tissue Fluid
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Liver
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Muscle
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Flesh
Frage 8
Frage
Fill in the spaces with the adequate stages of growth response to nutrient intake.
Image:
Q8 (image/png)
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Threshold
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Adequate
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Toxic
Frage 9
Frage
Fill in the blank spaces with the correct stages of energy flow in fish.
Image:
Q9 (image/png)
Antworten
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Total
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100
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Faecal
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13
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Digestible
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87
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Urinary
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branchial
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12
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Metabolic
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Heat production
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5
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Net
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75
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70
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Growth
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33
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basal
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metabolism
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37
Frage 10
Frage
It is a fact that fish conversion [blank_start]efficiency[blank_end] is low in fish. There are [blank_start]three[blank_end] main reasons for that: fish are [blank_start]poikilothermic[blank_end] and require [blank_start]low[blank_end] energy for maintenance, water environment require [blank_start]less[blank_end] energy to live in, and, the use of [blank_start]fat[blank_end] in the feed that has [blank_start]more[blank_end] energy density compared to carbohydrates fed to land animals.
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efficiency
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three
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poikilothermic
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low
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less
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fat
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more
Frage 11
Frage
The fee conversion efficiency for salmon, sea bass and red sea bream are, respectively, 1.1, 1.3 and 2.
Antworten
- True
- False
Frage 12
Frage
Proteins are required for the supply of [blank_start]essential amino acids[blank_end] and [blank_start]nitrogen[blank_end] for synthesis of non-essential amino acids.
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essential amino acids
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nitrogen
Frage 13
Frage
Protein requirement varies between different species of fish. The protein content in feed for best growth of Chinook salmon, Gilthead bream and Red sea bream, respectively, are: 400, 400 and 500.
Antworten
- True
- False
Frage 14
Frage
The roles of lipids in fish nutrition are energy supply, structure, precursors and signaling anomg others.
Antworten
- True
- False
Frage 15
Frage
Lipids include fats, waxes, sterols, water-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, triglycerides, phospholipids, and others.
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- True
- False
Frage 16
Frage
Triglycerides are important energy source and storages of fatty acids.
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- True
- False
Frage 17
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Phospholypids are elements present in the structure of membranes.
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- True
- False
Frage 18
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Fish can not synthesize fatty acids of the series w-3 and w-6 although they are not essential for many functions.
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- True
- False
Frage 19
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The essential fatty acids for freshwater fish are alpha linolenic (18: [blank_start]3w3[blank_end]) and alpha- linoleic (18: [blank_start]2w6[blank_end]).
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3w3
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2w6
Frage 20
Frage
The essential fatty acids for Marine fish are 20: 5w3 and 22: 6w6
Antworten
- True
- False
Frage 21
Frage
The fatty acid requirement for coho salmon is [blank_start]1-2.5[blank_end]% of linolenic acid while for [blank_start]red sea bream[blank_end] is 0.5% EicosaPentaenoicAcid (EPA) and DocosaHexaenoicAcid (DHA).
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1-2.5
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red sea bream
Frage 22
Frage
What is the percentage of fish oil that can be replaced without affecting the fish growth?
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60%
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50%
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80%
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30%
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40%
Frage 23
Frage
Feed fatty acid composition reflects [blank_start]body[blank_end] composition because there is a tendency of [blank_start]conservation[blank_end] of [blank_start]Highly Unsaturated Fatty Acid[blank_end].
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body
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conservation
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Highly Unsaturated Fatty Acid
Frage 24
Frage
The optimum dietary lipid levels in diets for Sparus aurata and Pagrus pagrus are, respectively, 15% and 9%.
Antworten
- True
- False
Frage 25
Frage
Which alternative on carbohydrate id correct?
Antworten
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They represent an expensive valuable source of dietary energy for non-carnivorous fish and shrimp.
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Their careful use in food can boost the degradation of protein.
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Digestability depends on molecule complexity (gelatinized starch < dextrin < glucose)
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Carnivores fish utilise carbs better than omnivorous fish.
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Temperature affects carbohydrates utilization by fish through the action of vitamins
Frage 26
Frage
If it is desired to increase the palatability of the feed, which element would be recommended to increase?
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Vitamin
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Protein
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Carbohydrates
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Minerals
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Water
Frage 27
Frage
The metabolism of glucose in fish can be affected by carbohydrate soure, feeding rate and macro-nutrient balance.
Antworten
- True
- False
Frage 28
Frage
Check the boxes of the alternatives that are correct or true about carbohydrates.
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Starch is the main carbohydrate used in aquafeeds.
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Cooking of starch during palletization or extrusion, greatly improves its digestibility by the fish.
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Carbohydrates represent only a secondary energy source for fish.
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Fish have little ability to use carbohydrates and to regulate metabolism.
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Some quantity of starch is required for the feed to obtain suitable physical characteristics.
Frage 29
Frage
There are 4 fat-soluble and 11 water soluble vitamins in the fish body.
Antworten
- True
- False
Frage 30
Frage
Which of the alternatives are correct?
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Vitamin requirements are quantified in young fast growing fish.
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Quantitative vitamin requirements may depend on feed consumption, presence of other nutrients and fish size.
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Vitamin A is used for the synthesis of rhodopsin.
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Vitamin A exists in three different forms, alcohol (retinol), aldehyde (retinal) and acid (retinoic acid).
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All the above.
Frage 31
Frage
Check the alternatives about vitamin D that are correct?
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Vitamin D might cause skeletal deformities in larvae.
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Vitamin D enhances the absorption of calcium and phosphorus .
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There are 8 types fo vitamine D
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Vitamine D is required for reproduction
Frage 32
Frage
What is the name of the vitamin that exists in 8 forms, it's required for reproduction and has antioxidant action?
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A
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C
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D
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E
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Fat soluble vitamin
Frage 33
Frage
What is the correct alternative regarding Ascorbic Acid?
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It has antioxidant action.
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It is necessary to create collagen.
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It is added to feed in large quantities (1g/kg).
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All the above.
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None of the above.
Frage 34
Frage
Fat soluble vitamins are absorbed together with [blank_start]fat[blank_end] and stored in [blank_start]tissues[blank_end] if their intake [blank_start]exceeds[blank_end] requirements, and therefore, are difficult to be quantified. Nonetheless, their presence in feed need to be moderated since [blank_start]hypervitaminosis[blank_end] may be toxic.
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fat
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tissues
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exceeds
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hypervitaminosis
Frage 35
Frage
Minerals can be classified as basic elements, macro elements, and, microelements. Two correct examples of each category would be:
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Carbon and Hydrogen; Calcium and Magnesium; Chromium and cobalt.
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Carbon and Hydrogen; Copper and fluorine; potassium and chlorine;
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Carbon and oxygen; sodium and selenium; potassium and zinc.
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Oxygen and nitrogen; calcium and zinc; magnesium and iron,
Frage 36
Frage
Which of these affirmations on minerals are correct?
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They are required for different functions (structural bones, catalytic enzymes) and osmoregultation.
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Fish acquire metals both from feed as well from the environment.
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Carbon, magnesium and molybdenum are all minerals that fish can obtain through feed.
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All of the above.
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None of the above.
Frage 37
Frage
Fill in the blank space with the correct information on mineral requirements of fish.
Image:
Q37 (image/png)
Antworten
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Calcium
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9.000
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Sodium
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6.000
Frage 38
Frage
Fill in the blank spaces with the correct characteristics of feed composition.
Image:
Q39 (image/png)
Antworten
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Balanced
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Easily digested
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Stable in water
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Minimize
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Waste
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raw
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materials
Frage 39
Frage
Nutritional [blank_start]genomics[blank_end]: study on the influence of feed on [blank_start]genes[blank_end] and how [blank_start]genetic[blank_end] differences affect the [blank_start]behavior[blank_end] of fish response to [blank_start]nutrients[blank_end].
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genomics
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genes
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behavior
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genetic
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nutrients
Frage 40
Antworten
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DNA
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Translation
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Metabolites
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Epigenetics
Frage 41
Antworten
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Yes, Oui, Sí, Naí..
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NO :(
Frage 42
Frage
FILL IN THE BLANK SPACES WITH THE CORRECT ANSWERS REGARDING CARBOHYDRATES.
Image:
Q51 (image/png)
Antworten
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wall
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Oligosaccharides
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Starch
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Cell
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