9345356
Frage 1
Frage
How many essential amino acids are there for fish?
Antworten
-
5
-
10
-
15
-
20
Frage 2
Frage
Why are proteins/amino acids important for fish performance and health? (Select all)
Antworten
-
Somatic Growth
-
Energy source
-
Immune functions
-
Transport of oxygen
-
Hormone production
-
Building blocks of cell membranes
-
Energy transport between various tissues
-
Cofactors in enzyme catalysed reactions
-
Cell membranes and wound healing
Frage 3
Frage
Why are lipids/fatty acids important for fish performance and health? (Select all)
Antworten
-
Somatic Growth
-
Energy source
-
Immune functions
-
Transport of oxygen
-
Hormone production
-
Building blocks of cell membranes
-
Energy transport between various tissues
-
Cofactors in enzyme catalysed reactions
-
Cell membranes and wound healing
Frage 4
Frage
Why are vitamins and minerals important for fish performance and health? (select all)
Antworten
-
Somatic Growth
-
Energy source
-
Immune functions
-
Transport of oxygen
-
Hormone production
-
Building blocks of cell membranes
-
Energy transport between various tissues
-
Cofactors in enzyme catalysed reactions
-
Cell membranes and wound healing
Frage 5
Frage
Which amino acid deficiency is associated with fish meal?
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 6
Frage
Which amino acid deficiency is associated with oilseed proteins sources? (Select all)
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 7
Frage
Which amino acid deficiency is associated with Hydrolysed feather meal proteins sources (Select all)?
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 8
Frage
Which amino acid deficiency is associated with Algae proteins sources (Select all)?
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 9
Frage
Which amino acid deficiency is associated with Fish silage proteins sources? (Select all)
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 10
Frage
Which amino acid deficiency is associated with Pulses as proteins sources? (Select all)
Antworten
-
None
-
Lysine
-
Tryptophan
-
Methionine
-
Threonine
Frage 11
Frage
Which amino acid deficiency is associated with plant protein meals? (Select all)
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 12
Frage
Which amino acid deficiency is associated with yeast proteins sources(Select all)?
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 13
Frage
Which amino acid deficiency is associated with bone and blood meal proteins sources? (Select all)
Antworten
-
None
-
Lysine
-
Tryptophan
-
Threonine
-
Methionine
Frage 14
Frage
Deficiency of Lysine in rainbow trout cause… (select all)
Antworten
-
Dorsal/caudal fin erosion
-
Increased mortality
-
Cataracts
-
Scoliosis/lordosis
-
Renal calcinosis
Frage 15
Frage
Deficiency of lysine in carp causes (select all)
Antworten
-
Dorsal/caudal fin erosion
-
Increased mortality
-
Cataracts
-
Scoliosis/lordosis
-
Renal calcinosis
Frage 16
Frage
Deficiency of Methionine in rainbow trout causes (select all)
Antworten
-
Dorsal/caudal fin erosion
-
Increased mortality
-
Cataracts
-
Scoliosis/lordosis
-
Renal calcinosis
Frage 17
Frage
Deficiency of methionine in atlantic salmon causes (select all)
Antworten
-
Dorsal/caudal fin erosion
-
Increased mortality
-
Cataracts
-
Scoliosis/lordosis
-
Renal calcinosis
Frage 18
Frage
Deficiency in tryptophan in rainbow trout causes (select all)
Antworten
-
Dorsal/caudal fin erosion
-
Increased mortality
-
Cataracts
-
Scoliosis/lordosis
-
Renal calcinosis
Frage 19
Frage
Of the 10 essential amino acids in fish, which appear to be the limiting factor when using alternatives to fish meal?
Antworten
-
Arginine
-
Histidine
-
Isoleucine
-
Leucine
-
Valine
-
Lysine
-
Methionine + Cysteine (only counts as one)
-
Phenylalanine
-
Threonine
-
Tryptophane
Frage 20
Frage
Rainbow trout farm is seeing increased fin erosion and mortalities after switching to an oils seed based diet. Which amino acid deficiency maybe causing this?
Antworten
-
Lysine
-
Arginine
-
Histadine
-
Phenylalanine
Frage 21
Frage
What amount of mercury is harmful for fish?
Antworten
-
0.1 mg/kg
-
1 mg/kg
-
5 mg/kg
-
6 mg/kg
Frage 22
Frage
What amount of Cadmium is harmful for fish?
Antworten
-
0.1 mg/kg
-
1 mg/kg
-
5 mg/kg
-
6 mg/kg
Frage 23
Frage
What amount of arsenic is problematic in fish nutrition?
Antworten
-
0.1 mg/kg
-
1 mg/kg
-
5 mg/kg
-
6 mg/kg
Frage 24
Frage
What amount of Histamine is problematic when considering fish nutrition?
Antworten
-
>0.1 mg/kg
-
>1 mg/kg
-
>10 mg/kg
-
>100 mg/kg
Frage 25
Frage
What amount of dioxins can be problematic when considering fish nutrition?
Antworten
-
>2.25 ng/kg
-
>7 ng/kg
-
>0.05 ng/kg
-
>0.01 mg/kg
Frage 26
Frage
What amount of PCB can be problematic when considering fish nutrition?
Antworten
-
>2.25 ng/kg
-
>7 ng/kg
-
>0.05 ng/kg
-
>0.01 mg/kg
Frage 27
Frage
What amount of DDT can be problematic when considering fish nutrition?
Antworten
-
>2.25 ng/kg
-
>7 ng/kg
-
>0.05 ng/kg
-
>0.01 mg/kg
Frage 28
Frage
What amount of Alfatoxin can be problematic when considering fish nutrition?
Antworten
-
>2.25 ng/kg
-
>7 ng/kg
-
>0.05 ng/kg
-
>0.01 mg/kg
Frage 29
Frage
Everything is going wrong with your rainbow trout, or it feels that way. For some reason you also aquaculture Coho and Chum salmon and Common carp and they all are dying and have problems with their livers. What could be the cause of this?
Antworten
-
Vibrio
-
Deficiency of essential fatty acids
-
Deficiency of lysine
-
Deficiency of carbohydrates
-
You also aquaculture brown trout which is well known for their uncanny ability to exploit other fishes’ deepest insecurities. The enlarged liver is from the drinking problem they’ve all acquired due to their subsequent lack of self-esteem.
Frage 30
Frage
Cyclopropenoic acid is
Antworten
-
An essential fatty acid from fish oil
-
A toxic fatty acid from cottonseed products
-
An essential fatty acid missing from cottonseed products
-
A toxic fatty acid from fish oil
Frage 31
Frage
What causes a reduction of ascorbic acid in feed?
Antworten
-
Oxidation
-
High temperatures
-
Light exposure
-
Trace elements
-
Moisture
-
Leaching
Frage 32
Frage
What causes a reduction of Pantothenic acid in fish feed?
Antworten
-
Oxidation
-
Moisture
-
Trace elements
-
High temp
-
light
-
oxidised lipids
-
leaching
Frage 33
Frage
What causes a reduction of riboflavin in fish feed?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High Temperatures
-
Light
-
Oxidised lipids
-
Alkaline conditions
Frage 34
Frage
What causes the reduction of Thiamine in feed when stored and processed incorrectly?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High temperatures
-
Light
-
Oxidised lipids
-
leaching
Frage 35
Frage
What causes the reduction of pyridoxine in feed when stored and processed incorrectly?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High temperatures
-
Light
-
Oxidised lipids
Frage 36
Frage
What causes the reduction of the vitamin Biotin in feed when stored and processed incorrectly?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High temperatures
-
Light
-
Oxidised lipids
Frage 37
Frage
What causes the reduction of Folic acid in feed when stored and processed incorrectly?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High temperatures
-
Light
-
Oxidised lipids
Frage 38
Frage
What causes the reduction of vitamin E in feed when stored and processed incorrectly?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High temperatures
-
Light
-
Oxidised lipids
Frage 39
Frage
What causes the reduction of in feed when stored and processed incorrectly?
Antworten
-
Oxygen
-
Moisture
-
Trace elements
-
High temperatures
-
Light
-
Oxidised lipids
Frage 40
Frage
You have a salmon, its got renal granulomas, hemoraging etc. Which vitamin is probably deficient ?
Antworten
-
Ascorbic acid
-
E
-
D
-
A
-
Choline
-
B12
-
B6
Frage 41
Frage
You have a salmon, it's got exphthalmia, ascites, clubbed gills, epicarditis etc. Which vitamin is probably deficient?
Antworten
-
Ascorbic
-
E
-
D
-
A
-
Choline
-
B6 (pyridoxine)
-
B12
Frage 42
Frage
How do you overcome the problem of thiaminase in certain raw fish, shellfish, rice polishings, indian mustard seed, mung bean and linseed in fish feed?
Also for Anti-vitamin A, E, D in raw soybean and anti-pyridoxine factor in linseed?
Antworten
-
Heat processing
-
Increasing pH
-
Decreasing pH
-
Fermentation
Frage 43
Frage
Which vitamins can accumulate causing hypervitaminosis?
Antworten
-
Water soluble vitamins
-
Fat soluble vitamins
Frage 44
Frage
Which fish are effected by phosphorus deficiency?
Antworten
-
Salmonids
-
Carp
-
Eel
-
Catfish
-
Sea bream
-
Sea bass
-
Rainbow trout
-
Atlantic Salmon
Frage 45
Frage
Which fish are affected by Calcium deficiency?
Antworten
-
Salmonids
-
Carp
-
Catfish
-
Eel
-
Sea bream
-
Rainbow trout
-
Sea Bass
-
Atlantic salmon
Frage 46
Frage
Which fish are commonly affected by magnesium deficiency?
Antworten
-
Salmonids
-
Carp
-
Catfish
-
Eel
-
Sea bream
-
Rainbow trout
-
Sea Bass
-
Atlantic salmon
Frage 47
Frage
Which fish are commonly affected by Iron deficiency?
Antworten
-
Salmonids
-
Carp
-
Catfish
-
Eel
-
Sea bream
-
Rainbow trout
-
Sea Bass
-
Atlantic salmon
Frage 48
Frage
Which fish are commonly affected by Zinc deficiency?
Antworten
-
Salmonids
-
Carp
-
Catfish
-
Eel
-
Sea bream
-
Rainbow trout
-
Sea Bass
-
Atlantic salmon
Frage 49
Frage
Which fish are commonly affected by Manganese deficiency?
Antworten
-
Salmonids
-
Carp
-
Catfish
-
Eel
-
Sea bream
-
Rainbow trout
-
Sea Bass
-
Atlantic salmon
Frage 50
Frage
Which fish are commonly affected by selenium deficiency?
Antworten
-
Salmonids
-
Carp
-
Catfish
-
Eel
-
Sea bream
-
Rainbow trout
-
Sea Bass
-
Atlantic salmon
Frage 51
Frage
Mineral deficiency sign: Reduced growth, poor FCR, bone demineralisation, skeletal deformity, abnormal calcification of ribs and soft rays of pectoral fins, cranial deformity, increased visceral fat are symptoms of a deficiency in?
Antworten
-
Phosphorus
-
Calcium
-
Magnesium
-
Iron
-
Zinc
-
Manganese
-
Selenium
Frage 52
Frage
Deficiency of what mineral causes anorexia, poor growth and poor feed efficiency?
Antworten
-
Phosphorus
-
Calcium
-
Magnesium
-
Iron
-
Zinc
-
Manganese
-
Selenium
Frage 53
Frage
Deficiency in what mineral causes reduced growth, sluggishness, anorexia, convulsions, high mortality, reduced bone magnesium content and cataracts?
Antworten
-
Phosphorus
-
Calcium
-
Magnesium
-
Iron
-
Zinc
-
Manganese
-
Selenium
Frage 54
Frage
Deficiency in what mineral causes reduced growth, cataracts, loss of appetite, mortality, erosion of fins and skins, poor wound healing.
Antworten
-
Phosphorus
-
Calcium
-
Magnesium
-
Iron
-
Zinc
-
Manganese
-
Selenium
Frage 55
Frage
What is perivisceral fat?
Antworten
-
Fat around the visceral
-
Fat between the peritoneum and the muscle
-
Fat in the muscles
-
Fat in your mamma
Frage 56
Frage
What is hepatic fat?
Antworten
-
Fat around the viscera
-
fat between the peritoneum and the muscle
-
Fat in the muscle
-
Fat in the liver
Frage 57
Frage
What is peritoneal fat?
Antworten
-
Fat around the viscera
-
Fat between the peritoneum and the muscle
-
Fat in the muscles
-
Fat in the liver
Frage 58
Frage
What factors must be considered when you are adapting a diet aimed at reducing muscle fat?
Antworten
-
Dietary fat
-
Dietary protein
-
Diet quantity
-
Species
-
Age
-
Consequences on peritoneal/visceral fat
Frage 59
Frage
Finish diets have varying degrees of success depending on ...
Antworten
-
Fish size
-
Initial diet
-
Species
-
All of the above (or around... the order will shift)
Frage 60
Frage
How much EPA/DHA did EFSA claim that sea bass/bream contains per 100g?
Antworten
-
1.2g
-
1.5g
-
0.62g
-
0.83g
Frage 61
Frage
Contrary to EFSA's claims, how much EPA and DHA does a 100g sea bass/bream fillet contain?
Antworten
-
1.2g
-
1.5g
-
0.62g
-
0.83g
Frage 62
Frage
Positives of fasting include..
Antworten
-
Empty intestines
-
Low metabolic activity
-
Less fat deposits - better product appearance
-
better storage
-
Firmer muscle (short term fasting)
-
Increase in ω3:ω6 ratio
-
Longer time to rigor mortis
Frage 63
Frage
Negatives of fasting
Antworten
-
Weight loss
-
Stress
-
Poor post-mortem quality
-
lower nutritional quality
-
Poor product appearance
-
Increase in rate of fat oxidation in storage
Frage 64
Frage
What is Astaxanthin used for
Antworten
-
Antibiotics
-
Probiotics
-
Pigmentation
-
Prebiotics
-
Anti-oxidant
Frage 65
Frage
A low feeding ration leads to a longer shape. This has a greater affect on shape than genetics.
Antworten
- True
- False
Frage 66
Frage
How does short term starvation effect fish texture?
Antworten
-
Firmer muscles
-
Reduced muscle firmness
-
Increase in muscle moisture and sweating
-
Stickier muscle
Frage 67
Frage
How does long-term starvation effect fish texture?
Antworten
-
Firmer muscle
-
Reduced muscle firmness
-
Increase in muscle moisture and sweating
-
Stickier muscle
Frage 68
Frage
How does high rearing temperature impact muscle texture?
Antworten
-
Firmer muscle
-
Softer, less elastic muscle
-
Increase in muscle moisture and sweating
-
Stickier muscle
Frage 69
Frage
How does high fish meal substitution impact muscle texture
Antworten
-
Firmer muscle
-
Reduced muscle firmness
-
Increase in muscle moisture and sweating
-
Stickier muscle
Frage 70
Frage
How does increased dietary taurine (amino acid) affect muscle texture?
Antworten
-
firmer muscle
-
Reduced muscle firmness
-
Increase in muscle moisture and sweating
-
stickier muscle (IVE WRITTEN THIS TOO MANY TIMES NOT TO KNOW WHAT IT REALLY MEANS)
Frage 71
Frage
Which form of tocopherol (anti-oxidant) is preferred for salmon?
Antworten
-
γ
-
δ
-
α
Frage 72
Frage
Why is α-tocopherol the preferred anti-oxidant over its γ and δ forms in Atlantic salmon aquaculture
Antworten
-
Metabolised and secreted at a slower rate
-
Better anti-oxidant
-
Cheaper
-
More appetising
Frage 73
Frage
Fish meal replacement by plant meals causes what affect on rigor-mortis onset time?
Antworten
-
Time to full rigor-mortis goes from 2h to 5h
-
Time to full rigor-mortis goes from 5h to 2h
-
Time to full rigor-mortis goes from 1h to 2h
-
Time to full rigor-mortis goes from 5h to 10h
Frage 74
Frage
Increasing dietary fat causes...
Antworten
-
Increases in fillet gaping
-
Decreases in fillet gaping
-
No effect on fillet gaping
Frage 75
Frage
Where do dioxins come from?
Antworten
-
Industrial by-products, produced through organic heating
-
Coolants fluids
-
Industrial produced to stop flame spreads
-
Pesticides
-
Plant raw materials
Frage 76
Frage
Where do DDTs come from?
Antworten
-
Industrial by-products, produced through organic heating
-
Coolant fluids
-
Industrial produced to stop flame spreading
-
Pesticides
-
Plant raw materials
Frage 77
Frage
Where do cyclodienes come from?
Antworten
-
Industrial by-products, produced through organic heating
-
Coolant fluids
-
Industrial produced to stop flame spreads
-
Pesticides
-
Plant raw materials
Frage 78
Frage
Where do hexachlorocyclohexanes come from?
Antworten
-
Industrial by-products, produced through organic heating
-
Coolant fluids
-
Industrial produced to stop flame spreads
-
Pesticides
-
Plant raw materials
Frage 79
Frage
Where does toxaphene come from?
Antworten
-
Industrial by-products, produced through organic heating
-
Coolant fluids
-
Industrial produced to stop flame spreads
-
Pesticides
-
Plant raw materials
Frage 80
Frage
Where does mirex come from?
Antworten
-
Industrial by-products, produced through organic heating
-
Coolant fluids
-
Industrial produced to stop flame spreads
-
Pesticides
-
Plant raw materials
Frage 81
Frage
Lower hydrophobicity of pollutant means higher probability of dietary carry over
Antworten
- True
- False
Frage 82
Frage
Fish from the Atlantic have lower POPs
Antworten
- True
- False
Frage 83
Frage
how to reduce POPs in fish feed?
Antworten
-
Select fish oils from species with naturally lower levels of POPs
-
Use alternative feed ingredients
-
Remove POPs
-
Introduce POP antagonists
-
Finishing diets
-
Fasting before harvest
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