months may have a positive influence on milk protein
synthesis, given that milk yield increased by 7% and
protein and CN yield by 15% in milk from FS cows
compared with milk from CT cows. The increase in
milk protein yield could be the result of a decrease in
the ruminal protein degradability of the whole flaxseed
supplemented. The administration of whole flaxseed
could have increased the flow of N to the duodenum
because of its greater bypass protein content. As a consequence,
the AA availability for protein synthesis in
the mammary gland increased. Ikwuegbu and Sutton
(1982) reported that protein digestion in the rumen
decreased and N flow to the duodenum increased when
linseed oil was infused in sheep rumen because of a
reduction in rumen fauna.