Interpreting Forage and Feed Analyses - French

Question 1

How can forage and feed nutrient composition be evaluated?

Answer 1

On a DM (dry matter) or as fed basis

Question 2

What should the DM content of grains and hay be?

Answer 2

85-92% DM

Question 3

What should the DM content of baleage be?

Answer 3

50-70% DM

Question 4

_________ represents the total fiber component of a feedstuff

Answer 4

NDF

Question 5

The ________ value corresponds to the level of cellulose and lignin in the plant

Answer 5

ADF

***high ADF = more lignin = less digestible

Question 6

_______ is the term created to measure the fraction of fiber that stimulates chewing

Answer 6

Physically effective fiber

*** HIGH peNDF promotes rumination and saliva production

Question 7

Forage quality is defined in terms of ___________

Answer 7

leafiness, stem thickness, color, smell, content of protein, fiber, or lignin

Question 8

Feed quality is described in terms of ________

Answer 8

Color, smell, texture, and presence or absence of molds

Question 9

Excellent quality of grass hay is represented by a TDN of _______% or above

Answer 9

58% or above (50-60% TDN)

Question 10

Good quality grains have a TDN or _____ %

Answer 10

70-80 %

Question 11

What is DDM?

Answer 11

% of forage sample that is digestible

Question 12

Which cows on a farm should be fed the top quality hay?

Answer 12

1. Early lactating dairy cows
2. young up to 5 months of age
3. Fresh cows
4. High production groups