Applied Feeding 2

Question 1

What does calculating requirements start with?

Answer 1

description of the animal

Question 2

What do you need to identify for calculating requirements?

Answer 2

-key parameters to use to guide identification of requirements for nutrients

Question 3

Examples of parameters you need to identify

Answer 3

-body weight
-physiological state
-production level
-breed
-age
-mature size

Question 4

What does descriptive information allow for?

Answer 4

-understanding of the requirements of an animal

Question 5

What can be calculated from the description?

Answer 5

requirements

Question 5

After maintenance is added, what is added next?

Answer 5

-add requirements related to production or physiological state

Question 5

What should always be included in a calculation?

Answer 5

maintenance requirements

Question 6

What are the parts of a ration formulation?

Answer 6

-requirements
-intake

Question 7

What does intake provide?

Answer 7

-the bounds for the amount of feed an animal will eat
-determines the density of nutrients to include in order to meet requirements

Question 8

Where can we get food composition values?

Answer 8

“Library” values are provided with feeding standards and software

Question 9

How does someone use a feed sample analysis? what do they get from it?

Answer 9

-submit feed sample to commercial lab
-often request a package of analyses that provides a profile of nutrients

Question 10

What does the “Library” represent? provide?

Answer 10

-represent averages or typical compositions for feeds
-provided sufficient for highly consistent feeds that vary little for the purpose of the ration

Question 11

What do requirements and feedstuff with nutrient composition provide the basis for?

Answer 11

Ratio formulation

Question 12

What is combined (mixed) to meet nutrient requirements?

Answer 12

Feedstuffs

Question 13

What happens when a low protein feed and high protein feed are combined? what also does this?

Answer 13

-they provide the moderate level of protein required for the animal
-vitamins and minerals

Question 14

What do nutrient compositions provide?

Answer 14

The information needed for developing a ration with appropriate concentration of nutrients to meet the quantity requirements of the animal based on intake

Question 15

Are requirements qualitative or quantitative?

Answer 15

Quantitative
-mass, amount

Question 16

What do feed formulations include?

Answer 16

concentrations

Question 17

What is nutrient concentration multiplied by amount eaten equal to?

Answer 17

amount of nutrient consumed

Question 18

What is weight of feed multiplied nutrient % equal to?

Answer 18

weight of nutrient consumed

Question 19

What is weight multiplied by kcal/weight equal to?

Answer 19

kcal consumed

Question 20

How will ration be explained?

Answer 20

on a concentration basis by mixing feeds

Question 21

What will intake determine?

Answer 21

-the amounts consumed and used to meet requirements

Question 22

What will equation 1 add?

Answer 22

-weights of the 2 ingredients to total the total feed weight needed
-soybean meal in kg + corn in kg = Total feed weight in kg

Question 23

What will equation 2 incorporate?

Answer 23

-the nutrient concentration of each feedstuff, its, weight, and total amount of the nutrient needed

Question 24

What is an example of equation 2?
-SBM is 44% and Corn is 8% CP and need at 16% CP

Answer 24

(0.44 * SBM) + (0.08 * Corn) = 0.16 * Total feed weight
-SBM protein in kg + Corn protein in kg = feed protein in kg

Question 25

What units are all variable in?

Answer 25

weight
-kg
-Lb
-g

Question 26

What are coefficients?

Answer 26

concentrations
-%
-Mcal/Lb
-kcal/kg