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Milk production in experiment 2 before treatment (Pre), during feed treatment (d 1 – d 6), and after all cows returned to ad libitum feed (Post 1 – Post 3). We observed no effect of feed (P = 0.33), LH (P = 0.64), or time (P = 0.11), but we did detect an interaction of feed × time (P = 0.0097), as shown. †P < 0.15; *P < 0.05.
