Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Feeds lecture > Swine Nutrition > Flashcards

Swine Nutrition Flashcards

1
Q

why does the midwest dominate is swine inventory

A

they have easy access to corn and sorghum product

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

Trends in carcass composition of hogs

A

-loineye and slaughter weight remain relatively the same
-backfat has significantly decreased

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

how much of hog production is feeding cost

A

2/3

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

how do cows compete with swine reproductive efficiency

A

their ability to utilize low quality forage

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

how many litters does a sow produce a year on average? how many pigs per litter

A

2.4 litters per year
10.5 pigs per litter

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

what percent of feed goes to slaughter progeny in hogs? how much to breeding herd?

A

slaughter progeny: 80%
herd: 20%

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

factors affecting pig energy requirements

A

maintenance
growth
pregnancy
lactation

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

most common cereal grain feed

A

1st: corn
2nd: milo

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

cereal grains nutritional balance

A

-high energy, low fiber
-deficient in EAA
-high in P(low bioavailability)
-low in Ca

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

cereal grain by-product nutritional balance

A

-lower energy, higher fiber than original cereal grain
-higher protein concentration
-same EAA profile

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

which is the only grain that has b-carotene that can be converted to vitamin A

A

corn

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

what cereal grain has the best protein quality

A

wheat grain

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

what cereal grain is abundant in Texas

A

sorghum

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

which cereal grain has lower ME value

A

barley grain

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

what cereal grain is better for ruminants than pigs and has a high fiber content

A

oat grain

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

T/F you should always process cereal grains when feeding them to hogs

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

T/F processing cereal grains improves the EAA profile by increasing the protein concentration

A

FASLE. EAA profile stays the same even as protein concentration increases

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

cereal grain milling by-products

A

-germ meal(corn, wheat)
-gluten meal(corn, sorghum)
-middlings(wheat, rye)
-hominy feed(corn)

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

dry cereal grain by-products

A

-beet pulp
-citrus pulp
-dried bakery product

20
Q

how much fat can you add to pig diets

A

5%

21
Q

disadvantages of feeding fat to pigs

A

-increased carcass fat
-more difficult to store and handle

22
Q

advantages to feeding fat to pigs

A

-improved milk yield
-pig survival improved
-reproductive efficiency improved

23
Q

how does adding fat affect the N:C ration, why?

A

ratio will be reduced bc fat adds calories but not lysine

24
Q

rate limiting amino acids in swine

A

lysine
methionine
threonine
tryptophan

25
Q

factors that alter pig composition of growth

A

-stage of growth
-gender
-genotype
-growth modifiers

26
Q

what happens to EAA requirements as weight increases

A

requirements decrease

27
Q

lysine requirement for young pigs

A

1.65%

28
Q

T/F you should feed boars and sows separately

A

TRUE. gilts are leaner than boars and have higher AA requirements

29
Q

what is the gold standard plant feed for EAA

A

SBM

30
Q

what plant protein has the lowest relative lysine value

A

corn gluten meal

31
Q

T/F SBM has better relative lysine value than most animal protein sources

A

FALSE. it is the best plant source, but is worse than most animal sources

32
Q

what is the bioavailability of synthetic amino acids

A

100%

33
Q

T/F measuring bioavailability is better than just the amount present

A

TRUE

34
Q

strategies to improve feed efficiency and reduce fecal nitrogen

A

-formulate diet on EAA requirements rather than CP
-formulate on bioavailability of EAA
-use synthetic EAA to meet requirements and lower CP
-implement phase feeding
-use split sex feeding
-use paylean
-use genetically modified corn

35
Q

phase feeding

A

2 phase: above requirements
2 phase: average
5 phase

36
Q

why does phosphorus have low bioavailability to non ruminants

A

fitic acid binds to phosphorus and prevents absorption

37
Q

on average how much phosphorus from plant sources is not bioavailable to non ruminanta

A

2/3

38
Q

what supplement increases the bioavailability of phosphorus in pigs

A

phytase

39
Q

why should copper be supplemented in young pigs

A

they have a high Fe requirement that milk does not meet

40
Q

what mineral supplement form has the lowest bioavailability

A

oxide forms

41
Q

what are organic trace minerals

A

mineral is linked to an AA to increase bioavailability

42
Q

b-complex vitamins most likely to be deficient in swine

A

riboflaven
pantothenic acid
niacin
vitamin B12

43
Q

why must feed intake be limited in swine during late gestation

A

diet is high in grain

44
Q

side effects of overfeeding swine in late gestation

A

smaller litters
difficult parturition
more crushed pigs

45
Q

how much should sows with less than 8 pigs be fed

A

3lb + 1lb for every piglet

Feeds lecture (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions