Q612
Lucerne hay contains % TDN
A.
10%
B.
30%
C.
20%
D.
50%
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Lucerne hay contains 50% TDN.Total Digestible Nutrients (TDN) is the sum of the digestible fiber, protein, lipid, and carbohydrate components of a feedstuff or diet.
The TDN value represents utilizable energy content of a feedstuff and it is calculated as the sum of digestible carbohydrate + 2.25 × digestible lipid + digestible protein.