Fig 2. Cell activities in bovine mammary epithelial cells at 48 and 60 h after lysine or methionine subtraction to ¼ the normal concentration.

(A) Values are least square means ± SE (n = 3). (B) CTL = control; LK = low lysine; LM = low methionine. (C) *P ≤ 0.05 compared to CTL.