When cows have mastitis, the protein content of milk may be higher, but the cheese yield is lower because of a decrease in _______ protein.

When cows have mastitis, the protein content of milk may be higher, bu

1.	When cows have mastitis, the protein content of milk may be higher, but the cheese yield is lower because of a decrease in _______ protein.
A.	Lysine
B.	Casein
C.	Tryptophan
D.	Whey
Answer» C. Tryptophan