The effect of constant heat stress on jejunum morphology
1Pigs were exposed to either thermal neutral conditions (d 0; 20°C) or 1, 3 or 7 d of constant heat stress (35°C). Mean ± S.E.M, d 0 n=18, d 1, 3 n=6 and d 7 n=12. a,bMeans without a common letter differ (P < 0.05).