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Nutrition 1 exam > Past qs 1 > Flashcards

Past qs 1 Flashcards

1
Q

Full-fat soya treatment is done by:

A

Uni-pro soya

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2
Q

What does a complete premix contain?

A

Vitamins, Micro-elements, Macro-elements

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3
Q

What is the protein content of cereals (corn, wheat, barley, oat, rye)?

A

10-15% Low

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4
Q

What happens when lignin content increases?

A

Digestibility decrease and feed intake increases

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5
Q

What can lectins cause?

A

They adhere to the mucous membrane of the intestine and damage the absorption (Ca2+)

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6
Q

What is the highest dose of carbamide (urea) a cow can eat?

A

20-30g / 100kg BW

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7
Q

What does feed intolerance mean?

A

A reproducible, unpleasant reaction to a specific ingredient, which is biochemically or
physiologically based.
e.g. Lactase deficiency causes lactose intolerance

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8
Q

What is the result of Vitamin C deficiency in fish?

A

Scoliosis, Lordosis (both spinal deformities)

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9
Q

In investigation of feedstuff, you can detect:

A

Feather meal, Fish meal

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10
Q

What are the anti-nutritive factors of Vicia faba (horse bean)?

A

Tannin (Exam paper)

Lupinin and Spartein (Lecture notes)

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11
Q

How much Dry Matter content is there in fresh pasture grass?

A

20 – 30%

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12
Q

What is the anti-nutritive factor in alfalfa?

A

Saponin

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13
Q

What is the Discount Factor of corn silage?

A
  1. 053 = 5.3%

i. e. If the feeding level is increased by 1 unit; the digestibility decreases with 5.3%

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14
Q

What will happen if you give a lot of by-pass protein to the Dairy Cows?

A

Time between parturition and new Artificial Insemination (AI) will increase.

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15
Q

Protein content in cereals (corn etc.)?

A

10 – 14%

Very low

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16
Q

What can lectinins cause?

A

Difficulty in Ca2+ absorption

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17
Q

In which species has nutrition a role in ovulation?

A

Sheep. The status of the ova changes with change in energy.

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18
Q

They are used as silage additive:

A

All of them

i.e. Cereal grains. Molasses. Organic acids

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19
Q

What are molasses a good source of?

A

Energy and S

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20
Q

Which factors decrease digestibility of proteins?

A

CP content of diet should be minimum 9-11%. NH3 concentration in rumen fluid minimum 3-5
mmol/L

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21
Q

The Discount Factor of corn silage is 0.053. It means:

A

The digestibility of the corn silage will decrease by 5.3%

22
Q

What is the average Discount Factor?

A

0.04 = 4%

23
Q

Which are used as a liquid protein source?

A

Neither

i.e. Neither molasses nor propylene glycol in this case

24
Q

What is the principle of silage making?

A

Anaerobe fermentation; with lactic acid production

25
Q

Which amino acid is most sensitive to the over-heating of feed?

A

Lysine

26
Q

Can be used as silage additives:

A

All of them
i.e. Cereal grains, Molasses, and Organic acids
Also dried sugar beet pulp, mineral acids, biological additives (bacteria cultures which are
lactic acid producers such as Lactobacillus acidophilus and Streptococcus faecium)

27
Q

What is the meaning of Bulky Feed?

A

Big volume with low Dry Matter content

28
Q

What kind of feed is the roughage?

A

Bulky feed ! the indigestible portion of plan foods that pushes food through the digestive
system; absorbing water and easing defecation

29
Q

How big is the CF content of roughage?

A

~ 18%

30
Q

What is the source of gossypol?

A

Cottonseed, field bean

Gossypol is an anti-nutritive to vitamin E

31
Q

What are molasses a good source of?

A

Energy and S

32
Q

If by-pass category in feedstuff is small:

A

Most nitrogen of the feedstuff will be degraded in the rumen

33
Q

How do we sterilize lab feed?

A

Gamma irradiation

34
Q

What is the consequence of fiber deficiency?

A

Digestion problems

35
Q

What can be the cause of eye cataracts?

A

Excessive amount of fish meal / bad fish meal; which causes an increased cholesterol

36
Q

How should motherless rabbits be fed?

A

Freeze-dried colostrum with additional vitamins, bacteria, and enzymes

37
Q

In which of the following substances is the energy value 5MJ/kg?

A

Straw

38
Q

What is the Ca:P ratio in pasture grass?

A

1:10

39
Q

Which one is a feeding standard?

A

NRC ! Committee on Animal Nutrition, National Research Council

40
Q

Which factors decrease digestibility of proteins?

A

Crude Fiber, Age, Anti-nutritive substance

41
Q

What is the P:E ratio in duck food?

A

CP: 11%
DCP: 5%
DE: 10MJ/g
ME: 11MJ/g

42
Q

What kind of feed has the highest by-pass character?

A

Blood meal

43
Q

How do we measure presence/amount of trypsin inhibition in food?

A

Trypsin-urease reaction

44
Q

What is the protein content in:

A 
Cereals - 10-14%
Rapeseed - 37%
Soybean - 45%
Fish meal - 65%
Blood meal - 92%
45
Q

How is extracted soybean meal obtained?

A

Autoclaving, extrusion, enzymes…

46
Q

What is the character of a potato?

A

Bulky and concentrated

47
Q

What is the character of hay?

A

Bulky and non-concentrated

48
Q

What is the character of grains?

A

Non-bulky and concentrated

49
Q

What is the effect of plant fibers on digestibility?

A

Decreases it

50
Q

What is grinded wheat good for?

A

Monogastric animals ! Decreased concentration alimentary energy

Nutrition 1 exam (18 decks)

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