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Table 3 The effect of alfalfa hay or concentrate starter on rumen weight, volume, and ruminal papillae morphology of pre-weaned lambs1

From: Transcriptomic analysis reveals the molecular mechanisms of rumen wall morphological and functional development induced by different solid diet introduction in a lamb model

Item M MH MC SEM P-value
Rumen weight and volume
 Rumen weight, g 371.13c 1242.50a 749.63b 83.74 < 0.001
 Emptied rumen weight, g 51.80b 154.00a 172.50a 11.72 < 0.001
 Emptied rumen weight/live body weight, % 0.53b 1.80a 1.75a 0.13 < 0.001
 Rumen volume, mL 716.25b 1528.75a 1199.38ab 111.12 0.005
Papillae morphology
 Length, mm 0.65c 1.79b 2.44a 0.07 < 0.001
 Width, mm 0.49c 0.80b 1.32a 0.04 < 0.001
 Density, n 310.00a 211.00b 158.00b 15.38 < 0.001
 Surface, mm2/cm2 195.14c 577.69b 1006.69a 84.82 < 0.001
Thickness of different stratum
 Total epithelia, μm 90.78c 123.91b 216.03a 3.00 < 0.001
 Stratum corneum, μm 13.42c 31.47b 48.78a 0.75 < 0.001
 Stratum granulosum, μm 13.11c 17.64b 36.00a 0.42 < 0.001
 Stratum spinosum and basale, μm 64.25b 74.81b 131.25a 2.43 < 0.001
 Muscles layer, μm 742.73c 1006.08a 856.71b 20.46 < 0.001
 Rumen wall, μm 1093.72b 1276.35a 1246.72a 22.86 0.001
  1. 1Values are shown as means ± pooled SEM, n = 8. Mean values within a column with unlike superscript letters were significantly different (P < 0.05). M goat milk group, MH goat milk plus alfalfa hay group, MC goat milk plus concentrate diet group