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Table 3 Rumen papillae density, dimensions and surface area 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
Length, mm 3.66c 3.72c 5.32a 4.76b 0.15 < 0.001 < 0.001 0.004 < 0.001
Width, mm 1.90b 1.98ab 1.89b 2.13a 0.06 0.001 0.004 0.093 0.015
Surface, mm/cm2 935.00b 1077.83ab 1407.49a 1337.98a 136.58 0.010 0.003 0.288 0.194
Density, no./cm2 70 76 74 70 10 0.865 0.964 0.420 0.843
  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-c Means within a row with different superscripts differ (P < 0.05)