#3 Carbohydrates Flashcards

1
Q

Ideal for Poultry Farmer

A

Maximize net income in sustainable manner

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2
Q

Nutrient is used for _ of _ _ and _ and _

A

maintenance, body tissues, processes, production

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3
Q

Poultry Require source of _, _, _, _, _, _

A

energy, nitrogen, fat, mineral, vitamin, water

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4
Q

Approximate cost of nutrients in diet _% Energy, _% Protein, _% Phosphorus, _% Rest

A

60, 25, 8, 7

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5
Q

Is energy a nutrient?

A

No

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6
Q

Components that supply energy into poultry feed

A

Carbohydrates > Fats > AA

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7
Q

In addition to maintenance of normal body processes, and production related activities what is energy used for?

A

Maintain body temp during cold or heat stress, retention in body products

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8
Q

Carbohydrates are composed of _ and _

A

Water, Carbon

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9
Q

Carbohydrates provide _kCal/gram

A

4

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10
Q

Is there any one essential carbohydrate that is essential?

A

No

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11
Q

The main carbohydrate in poultry diets

A

Starch

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12
Q

Feed ingredients high in starch ,,_,

A

Barley, Wheat, Corn

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13
Q

2 Types of Starch

A

Amylose, Amylopectin

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14
Q

Amylose is relatively _, and is _ to breakdown than , uses __- bonds

A

linear, harder, amylopectin, a1-4

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15
Q

Amylopectin is _, and is _ to breakdown than _, uses - and - bonds

A

branched, easier, amylose, a1-6

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16
Q

Amylose and Amylopectin both use _ bonds

A

glycosidic

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17
Q

Amylose is relatively _ and forms a tight _, bonds are harder to break with _

A

insoluble, helix, amylase

18
Q

Amylopectin is highly _, and has both types of _ bonds which makes it easier to be broken down by amylase

A

branched, glycosidic

19
Q

High Amylose Cereals, _ in starch, _ digesting, _ source of energy

A

lower, slower, sustained

20
Q

High Amylopectin Cereals, _ in starch, _ digesting, _ of energy

A

higher, faster, burst

21
Q

Examples of High Amylose grains

A

Oats, Barley

22
Q

Examples of High Amylopectin Grains

A

Corn, Wheat

23
Q

Intermediate Cereals, intermediate levels of amylopectin and amylose, more balanced _ source

24
Q

Examples of intermediate cereals

A

Rice, Sorghum

25
High Amylopectin Cereals cause _ _, they lead to high blood _, suitable for quick energy requirements in _
Glycemic Response, Sugar, Broilers
26
High Amylose cereals more suitable to animals requiring day long _ energy like _
sustained, cows
27
_ is more resistant to enzymatic breakdown by _ because of _
Amylose, Helix
28
Factors affecting Starch Digestibility
- Physical Entrapment - Crystallized - Retrograded
29
Starch can be physically entrapped by _ _
Cell Walls
30
High _ _ starch can crystallize and become _ digestibile
amylose corn, less
31
Gelatinization consists of breaking down crystallized structure by _ and adding _ to make starch more accessible to amylase
heating, moisture
32
Retrogradtion refers to the _ after _, _ structure realigns
cooling, gelatinization, crystallized
33
Cellulose uses _-glycosidic linkages that are _ to be _- _ by _-_
b, unable, broken-down, alpha-amylase
34
Amylose is broken into _ or _ by pancreatic _, than into _ by _ from the intestinal mucosa
Maltose, Maltriose, Amylase, Glucose, Maltase
35
Amylopectin is broken down into _ or _, than into _ by _ and _
isomaltose, dextrin, glucose, isomaltase, sucrase
36
Enterocytes are the absorptive cells in the intestinal lining, water mixed with mucin forms the _ _ _ (_), the UWL allows products of amylase digestion to diffuse into enterocyte
UWL
37
Glucose is absorbed by _
Transporters
38
Soluble fibre (ex. _) has anti-nutritional effect, _-like matrix forms when soluble fibre is mixed with water, gut _ increase and slows down _
flax, gel, viscosity, absorption
39
Indigestible Carbohydrates aka (Non-starch polysaccharides or _)
Fiber
40
Negative Effects of Fibre
Encapsulate starch making it in accessible to amylase Binds digestive enzymes Increase excretion of protein, fat Increase gut mass Reduces feed efficiency
41
Somewhat positive effect of Fibre
Some fermentation for energy purposes in ceca
42