Quiz 7 Flashcards

1
Q

energy requirements

A
  1. body size.
  2. breed
  3. Activity
  4. diurnal rhythm
  5. environmental temperature
  6. diet
  7. level of production
  8. feather coverage
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

body size

A

larger birds have lower energy requirement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

breed

A

purpose of the breed effects energy requirement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

activity

A

birds with access to more space have higher energy requirements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

diurnal rhythm

A

the longer the dark period the less active the birds is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

environmental temperature

A

the cold- a greater energy requirement to produce heat
the heat- higher energy requirement to dispel heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

diet

A

composition of diet affects energy needed to utilize other nutrients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

level of production

A

higher producing birds will lead to higher production requirments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

feather coverage

A

less feathers= higher energy requirements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

calorie

A

amount of energy needed to raise 1 g of 1 degree

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

gross energy

A

total combustible energy in a feedstuff
- measured by a bomb calorimeter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

digestible energy

A

the portion of gross energy not found in the feces
- not used in poultry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

metabolizable energy

A

the portion of gross energy not lost in feces, gases, and urine.
- gas production is negligible in poultry
- most commonly used in poultry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

net energy

A

the energy that is available for maintenance and production
- takes heat losses into account

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

true vs apparent metabolizable energy

A

true ME take into account endogenous energy losses in the feces and urine while apparent ME does not.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

dietary carbs

A
  • glucose is the primary source of energy in diets as starch. birds cannot breakdown cellulose and hemicellulose
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

dietary lipids

A

2.25 times as much energy as carbs per unit when oxidated
- derived from rendering, restaurant greases, vegetable oil industry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

essential fatty acids

A

needed for specific functions
- linoleic and arachidonic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

if missing dietary lipids from the diet birds exhibit…

A
  1. poor growth
  2. fatty livers
  3. reduced egg size
  4. reduced hatchability
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Protein

A

crude protein- measures the amount of nitrogen present.
CP= Nx6.25

21
Q

essential amino acids

A

have to be in the diet because the body cannot produce them.

22
Q

conditionally essential amino acids

A

amino acids that can be synthesized by the body but may become essential depending on the condition

23
Q

nonessential amino acids

A

can be synthesized by the body at a high rate for their need
- if provided enough N in the diet

24
Q

Important essential amino acids in poultry

A

Threonine, tryptophan, methionine, lysine

25
factors affecting amino acids requirements
1. more intensive production 2. rate of growth/ intensity of egg production 3. amino acid relationships
26
amino acid relationships
-phenylalanine is needed for tyrosine synthesis - methionine is needed for cysteine synthesis - glycine and serine can be interconverted
27
Antagonisms
adding extra of one amino acid can increase the requirement of another
28
inbalances
if supplementing individuals amino acids you must know which amino acid is most limiting, second most, etc...
29
Available
digestibility/ ability to be abosorbed
30
borderline protein deficiency symptoms
- poor growth, poor feathering, reduced egg size, poor egg production, poor feed efficiency
31
severe protein deficiency symptoms
- stop eating, stop egg production, loss of body weight, stasis of digestive tract, death
32
macrominerals
required in relatively large amounts in diets
33
trace minerals
required in relatively small amounts in diet
34
calcium deficiency
reduced growth, reduced egg production, soft-shell eggs, reduced bone mineralization.
35
phosphorus deficiency
weakened bones, leg problems
36
Calcium: Phosphorus ratio
broilers/replacement pullets- 2:1 laying hens= 8-12:1
37
sodium deficiency
reduced blood pressure, reduced blood pressure, reduced cardiac output
38
chloride deficiency
lack of controlled mov't , nervousness
39
potassium deficiency
muscle weakness, heart and respiratory problems, intestinal distension
40
magnessium deficiency
slow growth, lethargy, panting, gasping
41
copper deficiency
anemia, weakened bones, lameness, aortic rupture (turkeys)
42
iodine deficiency
reduced growth, reduced egg production, increased fat deposition ( obesity)
43
iron deficiency
anemia
44
manganese deficiency
perosis( slipped tendon), reduced egg production, reduced shell fitness, reduced hatchability of fertilized eggs
45
selenium deficiency
ruffled feathers, unthriftiness, frequent bruising, edema, exudative diathesis, white gizzard disease ( turkeys)
46
zinc deficiency
slower growth, shorter leg bones, enlarged hock joints, scaly skin, poor feathering, loss of appetite
47
vitamins
organic compounds required in diet in small amounts for life.
48
vitamin A deficiency
disruption of mucous membranes with white pustules, slower growth, emaciation, weakness, conjunctivitis, staggered gait
49
vitamin D deficency
decrease egg production and shell quality, bone weakness with increased breakage, reduced hatchability