export_review of horse feeds

Question 1

Horses spend what percentage of their time grazing and browsing?

Answer 1

60-75%

Question 2

Horses ingest what % of their BW in DM/day?

Answer 2

2-2.5%

Question 3

Feeding dried hays and concentrates will result in (less, more) time eating per day?

Answer 3

less, about 40% of day

Question 4

Natural feeds of horses is what % carbs?

Answer 4

80%

Question 5

Natural feeds of horses is what % protein?

Answer 5

8-12%

Question 6

Natural feeds of horses is what % of fat?

Answer 6

4-6%

Question 7

Fermentation in horses occurs (after, before) stomach and small intestine.

Answer 7

after

Question 8

Oral cavity function:

Answer 8

increase SA for SI enzymatic action and break down CHO for LI bacterial fermentation

Question 9

T or F: Horses are constantly salivating, regardless of chewing.

Answer 9

False; salivate only when chewing

Question 10

Purpose of saliva in horse?

Answer 10

lubricant for esophageal passage; NO ENZYMATIC ACTIVITY

Question 11

The equine stomach is ____% of GI capacity.

Answer 11

8%

Question 12

Retention time for equine stomach

Answer 12

2-18 hours

Question 13

Nonglandular region of equine stomach?

Answer 13

fundus

Question 14

glandular region of equine stomach?

Answer 14

pylorus

Question 15

Equine anterior pancreas secretes what in SI?

Answer 15

lipase, protease, amylase

Question 16

Equine Microvilli in SI act to absorb?

Answer 16

monosaccharide, fat, AA, vitamins, minerals

Question 17

Equine SI volume?

Answer 17

40-50 L (30% of total)

Question 18

Equine Passage time for SI?

Answer 18

2-8 hours

Question 19

Equine Volume capacity of LI?

Answer 19

100 L

Question 20

Equine Transit time for LI?

Answer 20

around 50 hours

Question 21

Equine LI ferments ____ to ____

Answer 21

CHO to VFA

Question 22

Equine LI provide __% of ME?

Answer 22

30-50%

Question 23

Equine LI absorbs ____L/day of water

Answer 23

80L/day

Question 24

T or F: NPN is utilized efficiently in LI of equine.

Answer 24

False; NPN not utilized well

Question 25

Bacterial B vitamins are absorbed where in equine GI?

Answer 25

LI

Question 26

3 things that adequate equine nutrition depends on?

Answer 26

1. what they need 2. what is available to feed 3. how much they can eat

Question 27

Nutrients of concern in equine?

Answer 27

water, energy, protein, minerals, vitamins

Question 28

Avg water intake of horses/day?

Answer 28

25L/day

Question 29

Amount of Energy depends on:

Answer 29

physiologic state, environment, activity level, size

Question 30

The majority of energy in horse feeds is provided by: 

Answer 30

carbohydrates

Question 31

Digestible Energy

Answer 31

Gross energy minus urine and GI gas

Question 32

Which equine feed has the lowest energy density?

Answer 32

hulls and fibers

Question 33

Which equine feed has highest energy density?

Answer 33

fat and oils

Question 34

Don't exceed ____% fat in diet for equine

Answer 34

20

Question 35

>50% of diet in horses should be:

Answer 35

forage (hay/pasture)

Question 36

<50% of diet for horses should be:

Answer 36

grains

Question 37

<20% of equine diet should be:

Answer 37

fat

Question 38

CP analyzed by:

Answer 38

amount of Nitrogen in feed

Question 39

baseline equine CP?

Answer 39

8-9%

Question 40

CP % for equine lactation?

Answer 40

14-15%

Question 41

Ca and P ratio for mature horses?

Answer 41

1.1:1 to 6:1

Question 42

Ca and P ratio for growing horses?

Answer 42

1.1:1 to 3:1

Question 43

Hyperkalemic periodic paresis caused by

Answer 43

increased K impairs conduction in heart; lower potassium (lower forage)

Question 44

Selenium toxicity in equine:

Answer 44

skin/hoof problems

Question 45

Selenium deficiency in equine:

Answer 45

white muscle disease

Question 46

Best way to assess selenium status?

Answer 46

analyze feed

Question 47

Maintenance Cu for eq?

Answer 47

10ppm

Question 48

Gestation Cu for eq?

Answer 48

12.5 - 50 ppm

Question 49

Weanling Cu for eq?

Answer 49

25ppm

Question 50

T or F: Horses appear to be very tolerant of higher copper levels (unlike sheep).

Answer 50

True

Question 51

Dark green forage should be high in what vitamins?

Answer 51

Vitamin A and Vitamin E

Question 52

T or F: A horse at maintenance can survive without any grain.

Answer 52

True

Question 53

Develop a feed recommendation using:

Answer 53

bodyweight, age and special needs, local feeds

Question 54

Standard feed measurement in horse world?

Answer 54

1 qt (coffee can)

Question 55

Flake of hay is approx ___lb

Answer 55

4 lb

Question 56

a 1000lb horse can eat up to ___lb of food?

Answer 56

20lb (2%)