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Table 4 Rumen papillae morphology of hay-fed (CON) and high-grain-fed sheep (G7–28)

From: Morphological adaptation of sheep’s rumen epithelium to high-grain diet entails alteration in the expression of genes involved in cell cycle regulation, cell proliferation and apoptosis

Item Treatments SEM Contrast, P
CON G7 G14 G28 Treatment Linear Quadratic Cubic
Thickness of stratum corneum, μm 21.31b 27.12a 20.26b 26.18a 0.78 < 0.001 < 0.001 < 0.001 < 0.001
Cell layers of stratum corneum, number of cell layers 2.86b 3.13a 2.98ab 2.99ab 0.04 0.004 < 0.001 0.006 < 0.001
Thickness of stratum granulosum/spinosum, μm 87.88a 69.70b 69.28b 88.16a 1.92 < 0.001 0.006 0.410 < 0.001
Thickness of stratum basale, μm 11.50b 10.51b 10.63b 13.66a 0.25 < 0.001 0.002 0.016 0.028
  1. Sheep assigned to CON (n = 5), G7 (n = 5), G14 (n = 5) and G28 (n = 5) received a high-grain diet for 0, 7, 14 and 28 d, respectively
  2. SEM standard error of mean
  3. a, b Means within a row with different superscripts differ (P < 0.05)